Dr MAN, Yu Bon
文裕邦
博士
|
Associate Professor |
Department of Science and Environmental Studies |
Contact
ORCiD
0000-0003-4108-9999
Phone
(852) 2948 8917
Email
ybman@eduhk.hk
Address
10 Lo Ping Road, Tai Po, New Territories, Hong Kong
Scopus ID
36466805500
Research Interests
(1) Health risk assessments (with emphasis on food safety);
(2) Biogeochemical cycle of persistent toxic substances in the environment;
(3) Wastewater treatment (sewage treatment plants and constructed wetlands); and
(4) Food wastes for fish culture.
Personal Profile
Dr. MAN obtained a B.Sc. (Honours) in Environmental Science from the University of Nottingham (2002-2005). After returning to Hong Kong, he also obtained a M.Sc. in Environmental and Public Health Management, (2006); and a Ph.D. in Environmental Science (2011), both from Hong Kong Baptist University. He is currently serving as an Assistant Professor in Department of Science and Environmental Studies, The Education University of Hong Kong.
Research Interests
(1) Health risk assessments (with emphasis on food safety);
(2) Biogeochemical cycle of persistent toxic substances in the environment;
(3) Wastewater treatment (sewage treatment plants and constructed wetlands); and
(4) Food wastes for fish culture.
Research Outputs
| Scholarly Books, Monographs and Chapters Chapter in an edited book (author) Mo, W. Y., Man, Y. B., & Wong, M. H. (2019). Evaluation of nutritional values of food waste-based feed pellets and common feeding materials for culturing freshwater fish. So. W.M., Chow, C.F. & Lee, J.C.K., Environmental sustainability and education for waste management: Implications for policy and practice (305-321). Singapore: Springer. |
| Journal Publications Publication in refereed journal Zeng, H. X., Man, Y. B., Wong, M. H., & Cheng, Z. (2024). Hair heavy metals and food consumption in residents of Chengdu: Factors, food contribution, and health risk assessment. Biological Trace Element Research, 202, 1503-1516. https://doi.org/10.1007/s12011-023-03785-y Yuan, C., Zeng, Y., Yan, X., Luo, J., Zeng, L., Man, Y. B., Lan, B., & Kang, Y. (2024). AhR agonists screening and identification in indoor dust based on non-target chemical analysis by GC-Q-TOFMS and biological effect evaluation referring to ToxCast/Tox21 database. Chemosphere, 357 https://doi.org/10.1016/j.chemosphere.2024.142108 Cai, J. Z., Yu, Y. L., Yang, Z. B., Xu, X. X., Lv, G. C., Xu, C. L., Wang, G. Y., Qi, X., Li, T., Man, Y. B., Wong, M. H., & Cheng, Z. (2024). Synergistic improvement of humus formation in compost residue by fenton-like and effective microorganism composite agents. Bioresource Technology, 400 https://doi.org/10.1016/j.biortech.2024.130703 Liu, J. B., Zhou, Y. J., Du, F. Z., Man, Y. B., Wong, M. H., & Cheng, Z (2024). Human health risk assessment based on a total diet study of daily mercury intake in Chengdu, China. Environmental Geochemistry and Health, 46 https://doi.org/10.1007/s10653-024-01910-x Rao, L., Zheng, C., Chen, J. B., Cai, J. Z., Yang, Z. B., Xu, X. X., Lv,G. C., Xu, C. L., Wang, G. Y., Man, Y. B., Wong, M. H., & Cheng, Z. (2024). Ecological and human health hazards of soil heavy metals after wildfire: A case study of Liangshan Yi autonomous prefecture, China. Chemosphere, 352 https://doi.org/10.1016/j.chemosphere.2024.141506 Wang, J., Shen, C., Zhang, J., Lou, G., Shan, S., Zhao, Y., Man, Y. B., & Li, Y. (2024). Per- and polyfluoroalkyl substances (PFASs) in Chinese surface water: Temporal trends and geographical distribution. Science of the Total Environment, 915 https://doi.org/10.1016/j.scitotenv.2024.170127 Zhang, S., Shen, C., Zhang, F., Wei, K., Shan, S., Zhao, Y., Man, Y. B., Wong, M. H., & Zhang, J. (2024). Microplastics removal mechanisms in constructed wetlands and their impacts on nutrient (nitrogen, phosphorus and carbon) removal: A critical review. Science of the Total Environment, 918 https://doi.org/10.1016/j.scitotenv.2024.170654 Zhang, C., Wong, M. H., Man, Y. B. & Cheng, Z. (2024). Effects of sodium selenite, yeast selenium, and nano-selenium on toxicity, growth, and selenium bioaccumulation in Lucilia sericata maggots. Environmental Science and Pollution Research, 31, 20510–20520. https://doi.org/10.1007/s11356-024-32505-9 Bian, H., Wang, M., Huang, J., Liang, R., Du, J., Fang, C., Shen, C., Man, Y. B., Wong, M. H., Shan, S., & Zhang, J. (2024). Large particle size boosting the engineering application potential of functional biochar in ammonia nitrogen and phosphorus removal from biogas slurry. Journal of Water Process Engineering, 57 https://doi.org/10.1016/j.jwpe.2023.104640 Guo, F., Wang, Y., Zhu, H., Zhang, C., Sun, H., Fang, Z., Yang, J., Zhang, L., Mu, Y., Man, Y. B., & Wu, F. (2023). Crop productivity and soil inorganic carbon change mediated by enhanced rock weathering in farmland: A comparative field analysis of multi-agroclimatic regions in central China. Agricultural Systems, 210 https://doi.org/10.1016/j.agsy.2023.103691 Bian, H., Wang, M., Han, J., Hu, X., Xia, H., Wang, L., Fang C., Shen, C., Man, Y. B., Wong, M. H., Shan, S., & Zhang, J. (2023). MgFe-LDH@biochars for removing ammonia nitrogen and phosphorus from biogas slurry: Synthesis routes, composite performance, and adsorption mechanisms. Chemosphere, 324 https://doi.org/10.1016/j.chemosphere.2023.138333 Bian, H., Shen, C., Liu, W., Man, Y. B., Wong, M. H., Christie, P., Shan, S., Wang, M., & Zhang, J. (2023). An improved method of MgFe-layered double hydroxide/ biochar composite synthesis. Journal of Cleaner Production, 393, 136186. https://doi.org/10.1016/j.jclepro.2023.136186 Ma, Y., Zhang, N., Li, Y., Zhao, H., Zhou, F., Xue, M., Yang, J., Man, Y. B., Wu, F., Liang, D (2023). Differences in selenium concentration and bioavailability between paddy and dryland soils of China: A study based on literature collection and field sampling. Journal of Hazardous Materials, 445 https://doi.org/10.1016/j.jhazmat.2022.130467 Peng, R. J., Zheng, C., Yang, Z. B., Xu, X. X., Wong, M. H., Man, Y. B., & Cheng, Z. (2023). Selenium toxicity and bioaccumulation in selenium-enriched fly (Chrysomya megacephala) maggots. Environmental Geochemistry and Health, 45, 4493-4503. https://doi.org/10.1007/s10653-023-01511-0 Gao, M., Yang, Z. B., Xu, X. X., Xian, J. R., Yang, Y. X., Yang, S., Man, Y. B., & Cheng, Z. (2023). Using fly larvae to convert food waste for growing Oujiang color common carps: health risk assessment of polycyclic aromatic hydrocarbons. Environmental Science and Pollution Research, 30, 43496-43504. https://doi.org/10.1007/s11356-023-25372-3 Shen, C., Su, L., Zhao, Y., Liu, W., Liu, R., Zhang, F., Shi, Y., Wang, J., Tang, Q., Yang, Y., Man, Y,B., & Zhang, J. (2023). Plants boost pyrrhotite-driven nitrogen removal in constructed wetlands. Bioresource Technology, 367, 128240. https://doi.org/10.1016/j.biortech.2022.128240 Wang, J., Bao, H., Man, Y. B., Cai, J., Li, J., Sun, B., & Wu, F (2023). Biochar reduces uptake and accumulation of PAHs in winter wheat growing in PAHs-contaminated soils. Pedosphere, 33, 938-947. https://doi.org/ 10.1016/j.pedsph.2023.01.005 Liu, R., Zhao, L., Li, J., Zhang, C., Lyu, L., Man, Y. B., & Wu, F (2022). Influence of exogenous selenomethionine and selenocystine on uptake and accumulation of Se in winter wheat (Triticum aestivum L. cv. Xinong 979). Environmental Science and Pollution Research, 30, 23887-23897. https://doi.org/10.1007/s11356-022-23916-7 Man, Y. B., Zhang, F., Mo, W. Y., Chow, K. L., & Wong, M. H. (2022). Using food waste to cultivate safe, good-quality Sabah (giant hybrid) grouper: Dioxins and dioxin-like polychlorinated biphenyls. Environmental Pollution, 313, 120122. https://doi.org/10.1016/j.envpol.2022.120122 Li, J., Liu R. F., Zhang C., Yang J., Lyu L. H., Shi Z.Y., MAN Y. B., & Wu, F. Y. (2022). Selenium uptake and accumulation in winter wheat as affected by level of phosphate application and arbuscular mycorrhizal fungi. Journal of Hazardous Materials, 433, 128762. https://doi.org/10.1016/j.jhazmat.2022.128762 Huang, Z. L., Yang, Z. B., Xu, X. X., Lei, Y. J., He, J. S., Yang, S., Wong, M,H., Man, Y,B., & Cheng, Z. (2022). Health risk assessment of mercury in Nile tilapia (Oreochromis niloticus) fed housefly maggots. Science of The Total Environment, 852, 158164. https://doi.org/10.1016/j.scitotenv.2022.158164 Luo, K., Zeng, D., Kang, Y., Lin, X., Sun, N., Li, C., Zhu, M., Chen, Z., Man, Y. B. & Li, H (2021). Dermal bioaccessibility and absorption of polycyclic aromatic hydrocarbons (PAHs) in indoor dust and its implication in risk assessment. Environmental Pollution, 264, 114829. Yang X.,, Man Y.B., Wong M.H., Owen R.B., Chow K.L., (2021). Environmental health impacts of microplastics exposure on structural organization levels in the human body. Science of the Total Environment, 825 https://doi.org/10.1016/j.scitotenv.2022.154025 Man, Y. B., Chow, K. L., Zhang, F., Lei, K. M., Leung, A. O. W., Mo, W. Y., & Wong, M. H. (2021). Protecting water birds of wetlands: Using toxicological tests and ecological risk assessment, based on metal/loid (s) of water, sediment and biota samples. Science of the Total Environment, 778, 146317. Kitae Baek, Daniel S. Alessi, Yu Bon Man, Eilhann E. Kwon (2021). Special issue on contamination, remediation and health for pollutants in natural aquatic, soil, sediments and atmospheric environments. Environmental Geochemistry and Health, 43(9), 3261–3262. https://doi.org/10.1007/s10653-021-01043-5 Luo, K., Zeng, Y., Li, M., Man, Y.B, Zeng, L., Zhang, Q., Luo, J. & Kang, Y. (2021). Inhalation bioacessibility and absorption of polycyclic aromatic hydrocarbons (PAHs) in indoor PM₂ꓸ₅ and its implication in risk assessment. Science of the Total Environment, 774, 145770. Lihui Lyu, Hanqi Wang, Ruifang Liu, Wenjing Xing, Jiao Li, Yu Bon Man, Fuyong Wu (2021). Size-dependent transformation, uptake, and transportation of SeNPs in a wheat–soil system. Journal of Hazardous Materials, 424(Part A) https://doi.org/10.1016/j.jhazmat.2021.127323 Zhang, J., Wu, S., Xu, J., Liang, P., Wang, M., Naidu, R., Liu, Y., Man Y.B., Wong, M.H., Wu, S. (2021). Comparison of ashing and pyrolysis treatment on cadmium/zinc hyperaccumulator plant: Effects on bioavailability and metal speciation in solid residues and risk assessment. Environmental Pollution, 272, 116039. Zhang, J., Hu, H., Wang, M., Li, Y., Wu, S., Cao, Y., Liang, P., Zhang, J., Naidu, R., Liu, Y., Man, Y.B., Wong, M.H., Zhang, C., & Shan, S. (2021). Land application of sewage sludge biochar: Assessments of soil-plant-human health risks from potentially toxic metals. Science of the Total Environment, 756, 144137. Man YB, Zhang F, Ma KL, Mo WY, Kwan HS, Chow KL, Man KY, Tsang YF, Li WC, Wong MH (2020). Growth and intestinal microbiota of Sabah giant grouper reared on food waste-based pellets supplemented with spirulina as a growth promoter and alternative protein source. Aquaculture Reports, 18, 100553. Zhang, J., Jin, J., Wang, M., Naidu, R., Liu, Y., Man, Y. B., Liang, X., Wong, M.H., & Shan, S. (2020). Co-pyrolysis of sewage sludge and rice husk/ bamboo sawdust for biochar with high aromaticity and low metal mobility. Environmental Research, 191, 110034. Zeng, Y., Pan, W., Ding, N., Kang, Y., Man, Y. B., Zeng, L., Zhang, Q., & Luo, J. (2020). Brominated flame retardants in home dust and its contribution to brominated flame retardants bioaccumulation in children hair. Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, 55(13), 1528-1533. Man, K.Y., Chow, K.L., Man, Y.B., Mo, W.Y., & Wong M.H. (2020). Use of biochar as feed supplements for animal farming. Critical Reviews in Environmental Science and Technology, 51(2), 187-217. Man, Y.B., Lei, K.M., Chow, K.L., Leung, A.O.W., Mo, W.Y., & Wong, M.H. (2020). Ecological risks of heavy metals/metalloid discharged from two sewage treatment works to Mai Po Ramsar site in South China. Environmental monitoring and assessment, 192, 1-14. Pan, W., Zeng, D., Ding, N., Luo, K., Man, Y. B., Zeng, L., Zhang, Q., Luo, J. & Kang, Y. (2020). Percutaneous penetration and metabolism of plasticizers by skin cells and its implication in dermal exposure to plasticizers by skin wipes. Environmental Science & Technology, 54(16), 10181-10190. Zhang, F., Man, Y.B., Mo, W.Y., Wong, M.H. (2020). Application of Spirulina in aquaculture: a review on wastewater treatment and fish growth. Review in Aquaculture, 12, 582-599. Ding, N., Wang, L., Kangy, Y., Luo, K., Zeng, D., Man, Y.B., Zhang, Q., Zeng, L., Luo, J., & Jiang, F. (2020). The Comparison of Transcriptomic Response of Green Microalga Chlorella Sorokiniana Exposure to Environmentally Relevant Concentration of Cadmium(II) and 4-N-Nonylphenol. Environmental Geochemistry and Health, 42, 2881-2894. Lin, S., Man, Y. B., Chow, K. L., Zheng, C., & Wong, M. H. (2020). Impacts of the influx of e-waste into Hong Kong after China has tightened up entry regulations. Critical Reviews in Environmental Science and Technology, 50(2), 105-134. Man, Y. B., Mo, W. Y., Zhang, F., & Wong, M. H. (2020). Health risk assessments based on polycyclic aromatic hydrocarbons in freshwater fish cultured using food waste-based diets. Environmental Pollution, 256, 113380. Mo, W. Y., Man, Y. B., & Wong, M. H. (2020). Soybean dreg pre-digested by enzymes can effectively replace part of the fishmeal included in feed pellets for rearing gold-lined seabream. Science of the Total Environment, 704, 135266. Zhang, F., Man, Y. B., Mo, W. Y., Man, K. Y., & Wong, M. H. (2019). Direct and indirect effects of microplastics on bivalves, with a focus on edible species: A mini-review. Critical Reviews in Environmental Science and Technology, 50(20), 2109-2143. Zhang, J., Zhang, J., Wang, M., Wu, S., Wang, H., Niazi, N.K., Man, Y.B., Christie, P., Shan, S. and Wong, M.H (2019). Effect of tobacco stem-derived biochar on soil metal immobilization and the cultivation of tobacco plant. Journal of Soils and Sediments, 19, 2313-2321. Mo, W. Y., Man, Y. B., Zhang, F., & Wong, M. H. (2019). Fermented food waste for culturing jade perch and Nile tilapia: Growth performance and health risk assessment based on metal/loids. Journal of Environmental Management, 236, 236-244. Zhang, J., Wu, S., Xu, Z., Wang, M., Man, Y.B., Christie, P., Liang, P., Shan, S. and Wong, M.H (2019). The role of sewage sludge biochar in methylmercury formation and accumulation in rice. Chemosphere, 218, 527-533. Kang, Y., Zeng, D., Man, Y.B., Liu, J., Yang, Y., Li, S., Situ, K., Xiong, W., Zeng, L., Zhang, Q. and Luo, J., Pan, W., Jiang, F., Wong, M.H. (2018). Comparison of sorption kinetics of PAHs by sorptive sinks and caco-2 cell and the correlation between bioaccessibility and bioavailability of PAHs in indoor dust. Science of the Total Environment, 645, 170-178. Zhang, Y., Deng, Q., Wang, M., Zhang, J., Man, Y.B., Shan, S., Wu, S., Liang, P., Cao, Y., Song, C. and Luo, L. (2018). Role of phosphoric acid in the bioavailability of potentially toxic elements in hydrochars produced by hydrothermal carbonisation of sewage sludge. Waste Management, 79, 232-239. Man, Y.B., Chow, K.L., Cheng, Z., Kang, Y., Wong, M.H. (2018). Profiles and removal efficiency of organochlorine pesticides with emphasis on DDTs and HCHs by two different sewage treatment works. Environmental Technology and Innovation, 9, 220-231. Mo, W. Y., Man, Y. B., & Wong, M. H. (2018). Use of food waste, fish waste and food processing waste for China's aquaculture industry: Needs and challenge. Science of the Total Environment, 613–614, 635-643. Man, Y.B., Chow, K.L., Tsang, Y.F., Lau, F.T.K., Fung, W.C., Wong, M.H. (2018). Fate of bisphenol A, perfluorooctanoic acid and perfluorooctanesulfonate in two different types of sewage treatment works in Hong Kong. Chemosphere, 190, 358-367. Man, Y. B., Chow, K. L., Xing, G. H., Chan, J. K. Y., Wu, S. C., & Wong, M. H. (2017). A Pilot Study on Health Risk Assessment Based on Body Loadings (Human milk, Placenta and Hair) of PCBs of Lactating Mothers at Taizhou, China, the World’s Major Site for Recycling Transformers. Environmental Pollution, 227, 364-371. Man, Y.B.; Chow, K.L.; Cheng, Z.; Mo, W.Y.; Chan, Y.H.; Lam, J.C.W.; Lau, F.T.K.; Fung, W.C.; Wong, M.H. (2017). Profiles and removal efficiency of polycyclic aromatic hydrocarbons by two different types of sewage treatment plants in Hong Kong. Journal of Environmental Sciences, 53, 196-206. https://doi.org/10.1016/j.jes.2016.04.020 Chow, K.L., Man, Y.B., Tam, N.F.Y., Liang, Y., & Wong M.H. (2017). Removal of decabromodiphenyl ether (BDE-209) using a combinedsystem involving TiO2photocatalysis and wetland plants. Journal of Hazardous Materials, 322, 263-269. Man, Y.B., Chung, A.K.C., & Wong, M.H. (2016). Changes in Low Molecular Weight Organic Acids and Antioxidative Enzyme Activities of Wetland Plants under Metal Stresses. Environmental Engineering and Management Journal, 15, 1657-1663. Chen, Z.J., Liu, H.Y., Ho, K.L., Huang, H.B., Liu, Q., Man, Y.B., Lam, M.H.W., Du, J., Wong, M.H. & Wang, H.S. (2016). Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in paired maternal and neonatal samples from South China: Placental transfer and potential risks. Environmental Research, 148, 72-78. Cheng, Z., Lam, C.L., Mo, W.Y., Nie, X.P., Choi, W.M., Man, Y.B. & Wong, M.H. (2016). Food wastes as fish feeds for polyculture of low-trophic-level fish: bioaccumulation and health risk assessments of heavy metals in the cultured fish. Environmental Science and Pollution Research, 23, 7195-7203. Cheng, Z., Mo, W.Y., Nie, X., Li, K., Choi, W.M., Man, Y., & Wong M.H. (2016). The use of food waste-based diets and Napier grass to culture grass carp: growth performance and contaminants contained in cultured fish. Environmental Science and Pollution Research, 23, 7204-7210. Mo, W. Y., Lun, C. H. I., Choi, W. M., Man, Y. B., & Wong, M. H. (2016). Enhancing growth and non-specific immunity of grass carp and Nile tilapia by incorporating Chinese herbs (Astragalus membranaceus and Lycium barbarum) into food waste based pellets. Environmental Pollution, 219, 475-482. Wong, M.H., Mo, W.Y., Choi, W.M., Cheng, Z., & Man, Y.B. (2016). Recycle food wastes into high quality fish feeds for safe and quality fish production. Environmental Pollution, 219, 631-638. Wong, J.T.F., Chen, X.W., Mo, W.Y., Man, Y.B., Ng, C.W.W., & Wong, M.H. (2016). Restoration of plant and animal communities in a sanitary landfill: A 10-year case study in Hong Kong. Land Degradation & Development, 27, 490-499. Wu, F., Wang, W., Man, Y.B., Chan, Y.C., Liu, W., Tao, S., & Wong, M.H. (2015). Levels of PM2.5/PM10 and associated metal(loid)s in rural households of Henan Province, China.. Science of the Total Environment, 15, 512-513. Chen, XW, Wong, J.T.F., Mo, W.Y., Man, Y.B., Ng, C.W.W.,& Wong, M.H. (2015). Ecological performance of the restored South East New Territories(SENT)landfill in Hong Kong(2000–2012). Land Degradation & Development, 27, 1664-1676. Man, Y.B., Chow, K. L., Man, M., Lam, J.C.W., Lau, F.T.K., Fung, W.C., & Wong, M.H. (2015). Profiles and removal efficiency of polybrominated diphenyl ethers by two different types of sewage treatment work in Hong Kong.. Science of the Total Environment, 505, 261-268. Chow, K.L., Man, Y.B., Tam, N.F.Y., Liang,Y, & Wong, M.H. (2015). Uptake and transport mechanisms of decabromodiphenyl ether (BDE-209) by rice (Oryza sativa). Chemosphere, 119, 1262-1267. Man, Y.B., Chow, K.L., Wang, H.S., Sun, X.L., Wu, S.C., Cai, Z.W., Kang, Y., Li, H., Zheng, J.S., Giesy, J.P., & Wong, M.H. (2015). Human health risk assessment of soil dioxin/furans contamination and dioxin-like activity determined by ethoxyresorufin-O-deethylase bioassay. Environmental Science and Pollution Research, 22, 5218-5227. Chen, Z.J., Liu, H.Y., Cheng, Z., Man, Y.B., Zhang, K.S., Wei, W., Du, J., Wong, M.H., & Wang, H.S. (2014). Polybrominated diphenyl ethers (PBDEs) in human samples of mother-newborn pairs in South China and their placental transfer characteristics.. Environment International, 73, 77-84. Cheng, Z., Mo, W.Y., Man, Y.B., Lam, C.L., Choi, W.M., Nie, X.P., Liu, Y.H. & Wong, M.H. (2014). Environmental mercury concentrations in cultured low-trophic-level fish using food waste-based diets. Environmental Science and Pollution Research, 22(1), 495-507. Cheng, Z., Mo, W. Y., Man, Y. B., Nie, X. P., Li, K. B., & Wong, M. H. (2014). Replacing fish meal by food waste in feed pellets to culture lower trophic level fish containing acceptable levels of organochlorine pesticides : Health risk assessments. Environmental International, 73, 22-27. Huang, M., Wang, W., Chan, C.Y., Cheung, K.C., Man, Y.B., Wang, X., & Wong, M.H. (2014). Contamination and risk assessment (based on bioaccessibility via ingestion and inhalation) of metal(loid)s in outdoor and indoor particles from urban centers of Guangzhou, China. Science of the Total Environment, 479-480(1), 117-124. Man, Y.B., Chan, J.K.Y., Wang, H.S., Wu, S.C., & Wong, M.H (2014). DDTs in mothers' milk, placenta and hair, and health risk assessment for infants at two coastal and inland cities in China. Environment International, 65, 73-82. Lau, W.K.Y., Liang, P., Man, Y.B., Chung, S.S., & Wong, M.H. (2014). Human health risk assessment based on trace metals in suspended air particulates, surface dust, and floor dust from e-waste recycling workshops in Hong Kong, China. Environmental Science and Pollution Research, 21(5), 3813-3825. Man, Y.B., Wu, S.C., & Wong, M.H. (2014). Shark fin, a symbol of wealth and good fortune may pose health risks: the case of mercury. Environmental Geochemistry and Health, 36(6), 1015-1027. Mo, W. Y., Cheng, Z., Choi, W. M., Man, Y. B., Liu, Y., & Wong, M. H. (2014). Application of food waste based diets in polyculture of low trophic level fish: Effects on fish growth, water quality and plankton density. Marine Pollution Bulletin, 85(2), 803-809. Wang, H. S., Chen, Z. J., Cheng, Z., Du, J., Man, Y. B., Leung, H. M., Giesy, J. P., Wong, C. K. C., & Wong, M. H. (2014). Aquaculture-derived enrichment of hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in coastal sediments of Hong Kong and adjacent mainland China. Science of the Total Environment, 466-467, 214-220. Chan, J.K.Y., Man, Y.B., Xing, G.H., Wu, S.C., Murphy, M.B., Xu, Y. and Wong, M.H. (2013). In vitro estimation of exposure of Hong Kong residents to mercury and methylmercury via consumption of market fishes. Journal of Hazardous Materials, 248-249, 387-393. Cheng, Z., Man, Y. B., Nie, X. P., & Wong, M. H. (2013). Trophic relationships and health risk assessments of trace metals in the aquaculture pond ecosystem of Pearl River Delta, China. Chemosphere, 90(7), 2142-2148. Wang, H.S., Xu, W.F., Chen, Z.J., Cheng, Z., Ge, L.C., Man, Y.B., Giesy, J.P., Du, J., Wong, C.K. and Wong, M.H (2013). In vitro estimation of exposure of Hong Kong residents to mercury and methylmercury via consumption of market fishes. Journal of Hazardous Materials, 248-249, 387-393. Wang, H. S., Sthiannopkao, S., Chen, Z. J., Man, Y. B., Du, J., Xing, G. H., Kim, K. W., Mohamed Yasin, M.S., Hashim, J.H., & Wong, M. H. (2013). Arsenic concentration in rice, fish, meat and vegetables in Cambodia: A preliminary risk assessment. Environmental Geochemistry and Health, 35(6), 745-755. Li, H., Man, Y.B., Ye, Z.H., Wu, C., Wu, S.C., & Wong, M.H. (2013). Do arbuscular mycorrhizal fungi affect arsenic accumulation and speciation in rice with different radial oxygen loss?. Journal of Hazardous Materials, 262, 1098-1104. Chan, J. K. Y., Man, Y. B., Wu, S. C., & Wong, M. H. (2013). Dietary intake of PBDEs of residents at two major electronic waste recycling sites in China. Science of The Total Environment, 463-464, 1138-1146. Chan, J. K. Y., Man, Y. B., Xing, G. H., Wu, S. C., Murphy, M. B., Xu, Y., & Wong, M. H. (2013). Dietary exposure to polychlorinated dibenzo-p-dioxins and dibenzofurans via fish consumption and dioxin-like activity in fish determined by H4IIE-luc bioassay. Science of the Total Environment, 463-464, 1192-1200. https://doi.org/10.1016/j.scitotenv.2012.07.099 Kang, Y., Yin, Y., Man, Y., Li, L., Zhang, Q., Zeng, L., Luo, J., & Wong, M.H. (2013). Bioaccessibility of polychlorinated biphenyls in workplace dust and its implication for risk assessment. Chemosphere, 93(6), 924-930. Man, Y.B., Chan, J.K.Y., Wu, S.C., Wong, C.K.C., & Wong, M.H. (2013). Dietary exposure to DDTs in two coastal cities and an inland city in China. Science of The Total Environment, 463-464, 264-273. Man, Y.B., Kang, Y., Wang, H.S., Lau, W., Li, H., Sun, X. L., Giesy, J. P., Chow, K.L., & Wong, M.H. (2013). Cancer risk assessments of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons. Journal of Hazardous Materials, 261, 770-776. Wang, H. S., Jiang, G. M., Chen, Z. J., Du, J., Man, Y. B., Giesy, J. P., Wong, C. K. C., & Wong, M. H. (2013). Concentrations and congener profiles of polybrominated diphenyl ethers (PBDEs) in blood plasma from Hong Kong: Implications for sources and exposure route. Journal of Hazardous Materials, 261, 253-259. Man, Y. B., Chow, K. L., Kang, Y., & Wong, M. H. (2013). Mutagenicity and genotoxicity of Hong Kong soils contaminated by polycyclic aromatic hydrocarbons and dioxins/furans. Mutation Research - Genetic Toxicology and Environmental Mutagenesis, 752(1-2), 47-56. Wang, H.S., Chen, Z.J., Wei, W., Man, Y.B., Giesy, J.P., Du, J., Zhang, G., Wong, C.K.C. and Wong, M.H. (2013). Concentrations of organochlorine pesticides (OCPs) in human blood plasma from Hong Kong: Markers of exposure and sources from fish. Environmental International, 54, 18-25. Sun, X.L., Wu, S.C., Wang, H.L., Zhao, Y.G., Zhang, G.L., Man, Y.B. and Wong, M.H. (2013). Dealing with spatial outliers and mapping uncertainty for evaluating the effects of urbanization on soil: A case study of soil pH and particle fractions in Hong Kong. Geoderma, 195-196, 220-233. Wang, H. S., Xu, W. F., Chen, Z. J., Cheng, Z., Ge, L. C., Man, Y. B., Giesy, J. P., Du, J., Wong, C. K. C. & Wong, M. H. (2013). In vitro estimation of exposure of Hong Kong residents to mercury and methylmercury via consumption of market fishes. Journal of Hazardous Materials, 248-249, 387-393. https://doi.org/10.1016/j.jhazmat.2012.12.060 Publication in non-refereed journal Wu, F., Liu, X., Wang, W., Man, Y.B., Chan, C.Y., Liu, W., Tao, S., & Wong, M.H. (2015). Characterization of particulate-bound PAHs in rural households using different types of domestic energy in Henan Province, China. Science of The Total Environment, 536, 840-846. Mo, W.Y., Cheng, Z., Choi, W.M., Lun, C.H.I., Man, Y.M., Wong, J.T.F., Chen, X.W., Lau, S.C.K., & Wong, M.H. (2015). Use of food waste as fish feeds: effects of prebiotic fibers (inulin and mannanoligosaccharide) on growth and non-specific immunity of grass carp (Ctenopharyngodon idella). Environmental Science and Pollution Research, 22, 17663-17671. |
| Conference Papers Refereed conference paper Li, Z., Man, Y.B., Wu, R.S.S., & Tsang, Y.F. (2019, December). Potential Exposure and Health Risks of Endocrine Disrupting Chemicals in Children. Paper presented at The 4th International Conference on Biological Waste as Resource 2019 (BWR2019), Busan, Korea. |
Projects
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Ecological Monitoring in SENT Landfill and Surrounding Area 2024-2025 Project Start Year: 2024, Principal Investigator(s): WONG, Ming Hung (MAN, Yu Bon as Co-Investigator) |
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Study of Biotransformation of Food waste and Selenium by Fly Larvae used for Animal Feed Project Start Year: 2023, Principal Investigator(s): MAN, Yu Bon |
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Ecological Monitoring in SENT Landfill and Surrounding Area 2023-2024 Project Start Year: 2023, Principal Investigator(s): WONG, Ming Hung (MAN, Yu Bon as Co-Investigator) |
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Risk Assessments of Co-exposure to Weathered Nanoplastics and Toxic Contaminants in Hong Kong Aquatic Environments The overall aim of this research is to examine the characteristics of nanoplastics (NPs) and weathered NPs in aquatic environments in Hong Kong and identify and characterize the coexisting toxic contaminants adsorbed on NPs and weathered NPs for assessing their potential ecological risks. Project Start Year: 2023, Principal Investigator(s): TSANG, Yiu Fai (MAN, Yu Bon as Co-Investigator) |
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Activated Carbon Made from Rice Husks and Coconut Shell as Feed Supplement for Reducing Uptake of Metal/Loids, PAHs and PCBs by Nile Tilapia The proposed study aims to use activated charcoal-based fish feed (AC-FF) made from bioresources (rice husks and coconut shells) for culturing Nile tilapia (Oreochromis niloticus). Laboratory-scale and field-scale fish feeding experiments will be conducted to assess the effect of AC-FF on fish growth, histology of digestive tract, immunity, gill and gut microbiota diversity. The bioaccessibility of pollutants in fish feed will be studied using an in vitro gastrointestinal digestion model. The potential health risk of consuming the fish products produced from the AC-FF diet will also be evaluated based on the human health risk assessment model Project Start Year: 2023, Principal Investigator(s): MAN, Yu Bon |
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Health Risk Assessment of Persistent Toxic Substances in Freshwater Fish Fed by Fly Larvae The proposed study aims to use fly larvae to consume food waste for culturing freshwater fish. The effects of fly larvae as the significant diet for fish growth are investigated using laboratory-scale fish feeding experiments. The potential health risks of some persistent toxic substances (PTS) in the fish products fed with fly larvae will be evaluated based on the human health risk assessment model. Project Start Year: 2022, Principal Investigator(s): MAN, Yu Bon |
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Transport and Fate of Microplastics in Sewage Sludge Biochar Integrated Constructed Wetland and its Effects on the Nitrogen Cycle In the present project, we will study (1) the effect of the pyrolysis process on the retention capacity of sewage sludge-based biochar (SSB) to microplastics (MPs), (2) explore the transport and fate of MPs in SSB integrated constructed wetland (CW), and (3) investigate the effects of microplastics on the composition, nitrification, and denitrification of microbial communities in SSB amended CW. This study can clarify the impact of microplastics on the water treatment performance of CWs and provide knowledge and techniques for sewage sludge reuse and wastewater treatment. Project Start Year: 2022, Principal Investigator(s): MAN, Yu Bon |
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Use of Plant-Based Biochar to Reduce Polycyclic Aromatic Hydrocarbon in Wheat: The Role of Rhizospheric Microbe in Soil The objectives of this project are (1) to produce plant-based (coconut shell and maize straw) biochar and study the surface characteristics, physicochemical properties as well as PAHs concentrations of biochar the PAHs; (2) to study the concentration of PAHs in wheat, rhizospheric soil and the growth of wheat; and (3) To reveal the role of rhizospheric microbe in PAH uptake in wheat after adding plant-based biochar. Project Start Year: 2022, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Development of High Grade Pellets Using Food Wastes for Safe and Quality Fish Production .. Project Start Year: 2021, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Ecological Monitoring in SENT Landfill and Surrounding Area 2021-2022 Ecological Study - To study the ecological influence, if any, of the landfill operation on the adjacent ecosystems. To monitor ecological successions at restored areas for improving the landscaping restoration at landfill. Project Start Year: 2021, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Identification, Characterisation, and Process Modification for Enhancing Removal Efficiency of Microplastics in Sewage Treatment Works with Different Designs in Hong Kong The overall aim of this research is to evaluate removal efficiency of microplastics in sewage treatment works with different treatment levels and process designs in Hong Kong. Project Start Year: 2021, Principal Investigator(s): TSANG, Yiu Fai (MAN, Yu Bon as Co-Investigator) |
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Study on Recycling of Waterworks Sludge for Production of Paving Blocks The overall aim of this research is to evaluate the suitability for incorporation of waterworks sludge in the production of paving blocks and to examine the environmental compatibility and the associated environmental risks of the waterworks sludge paving blocks. Project Start Year: 2021, Principal Investigator(s): TSANG, Yiu Fai 曾耀輝 (MAN, Yu Bon 文裕邦 as Co-Principal Investigator) |
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Ecological Monitoring in SENT Landfill and Surrounding Area 2020-2021 Ecological Study - To study the ecological influence, if any, of the landfill operation on the adjacent ecosystems. To monitor ecological successions at restored areas for improving the landscaping restoration at landfill. Project Start Year: 2020, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Effect of Biochar on Microbial Diversity and Removal of Persistent Toxic Substances by a Wetland Plant, Taro (Colocasia Esculenta) Biochar is a newly arising and promising technical product widely applied in soil remediation. Waste wood is potential low-cost feedstock for production of biochar with higher fixed carbon content and subsequently higher stability in soil application. Therefore, the present study aims at investigating (1) the production of biochar from waste wood; (2) the influence of biochar on the microbial diversity of rhizosphere of Colocasia esculenta; (3) as well as their association with removal and/or degradation of pollutants (metalloid/metals (As, Cd, Cr, Cu, Zn, Pb) and PAHs) in soil will also be studied. Project Start Year: 2020, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Spent Coffee Ground-based Biochar-supplemented Fish Feed for Lowering Uptake of Perfluorooctanoic Acid and Perfluorooctanesulfonic Acid by Grass Carp In the present study, spent coffee grounds(SCG)-based biochar supplemented-fish feed will be used to grow grass crap, while the uptake of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) by fish will be investigated. The growth performance of fish fed with the feed supplement will be compared with those fed with commercial feed. Fish immunity, fish gut microbiota population, and concentrations of PFOA and PFOS in the meat of cultured fish will also be used for evaluating fish health and human health after consumption of these fish. Project Start Year: 2020, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Sustainable aquaculture in Big Bay Area, through using food waste for fish culture: Promotion and Demonstration The major purpose of this proposed project is to use a demonstration unit and a promotion package (with a video and a booklet) to foster the concept of sustainable aquaculture in Greater Bay Area, using food waste to produce safe and quality fish, at a lower cost. Residual nutrients contained in food waste could be recycled as valuable resources (i.e. fish feed pellets); and at the same time ease its disposal pressure, which is a problem in all densely populated cities in the Big Bay Area. Project Start Year: 2020, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Principal Investigator) |
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Vegetable-based Biochar Added in Fish Feed for Lowering Uptake of Persistent Toxic Substances by Grass Carp The project aims to make use of vegetable wastes (spent coffee grounds) to formulate vegetable-based biochar fish feed and production of safe and quality fish for the aquaculture industry. Project Start Year: 2020, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Development of a Green and Sustainable Method to C-H Activate Inert Plastic Wastes into Useful Resources (EdUHK/Departmental Research Fund) The great demand for synthetic plastics and the ineffective recycling of plastic waste threaten our environment at a time when fossil fuels are gradually running out. The development of an economically viable C–H activation system for alkanes remains a major unsolved problem in this millennium. In this study, we will develop new high-valent metal-oxo catalysts to activate carbon-hydrogen bonds of PE, PP, PS, and PVC by solid green oxidants. Project Start Year: 2019, Principal Investigator(s): CHOW, Cheuk Fai Stephen 周卓輝 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Eco-Garden: Experiencing and Experimenting 2019 The aims of the project were to educate the public about the knowledge related to biodiversity through guided tours and hands-on educational activities; to promote public awareness of Hong Kong biodiversity through guided tours and hands-on educational activities; and to let the public realize the significance of Eco-Garden in conserving urban biodiversity Project Start Year: 2019, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Ecological Monitoring in SENT Landfill and Surrounding Area 2019-2020 Ecological Study - To study the ecological influence, if any, of the landfill operation on the adjacent ecosystems. To monitor ecological successions at restored areas for improving the landscaping restoration at landfill. Project Start Year: 2019, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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EcoGarden: Experiencing and Experimenting 2018 A continued project in promoting Hong Kong Biodiversity Project Start Year: 2018, Principal Investigator(s): CHEANG, Chi Chiu 蔣志超 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Ecological Monitoring in SENT Landfill and Surrounding Area 2018-2019 Ecological Study - To study the ecological influence, if any, of the landfill operation on the adjacent ecosystems. To monitor ecological successions at restored areas for improving the landscaping restoration at landfill. Project Start Year: 2018, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Investigation of Root Anatomy in Rice with Different Characteristics of Metalloid Uptake and Accumulation .. Project Start Year: 2018, Principal Investigator(s): LI, Wai Chin 李偉展 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Uptake of Persistent Toxic Substances by Marine Fish Fed with Food waste-Based Feed: The Role of Fish Gut Microbiota This study focuses on the feasibility of recycling food waste for production of fish feed for feeding marine fish. More importantly, the removal mechanisms of pollutants in microbial reactions and bioaccessibility of pollutants in fish gut will be identified. Project Start Year: 2018, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Resource Recovery from Organic Wastes: Utilization of Different Organic Wastes as Substrates for Production of Biodegradable Plastics with Specific Characteristics for Industrial Applications The overall aim of this research is to provide a potentially inexpensive source of carbon substrate from different organic wastes for the production of industrially relevant bio-derived biodegradable materials with specific properties through the exploration of novel and advanced routes for resource recovery. Project Start Year: 2017, Principal Investigator(s): TSANG, Yiu Fai 曾耀輝 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Ecogarden: Experiencing and Experimenting II This is a continuing project of environmental education, supported by the Agriculture, Fisheries and Conservation Department under the "Biodiversity Festival 2017". The aim of the project is, through guided tours and hands-on educational activities in the campus Ecogarden of EdUHK, to educate the public about the knowledge related to biodiversity and to promote public awareness of Hong Kong biodiversity. Project Start Year: 2017, Principal Investigator(s): CHEANG, Chi Chiu 蔣志超 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Food Waste Based-Biochar as Fish Feed and Their Associated Effects on Bioaccessibility of Persistent Toxic Substances This study is aiming at using different types of food waste (fruit peels and vegetables, meat, bone meal and cereal) for producing biochar and incorporated into commercial fish feed for growing two different types of freshwater fish species. Project Start Year: 2017, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Ecological Monitoring in SENT Landfill and Surrounding Area Ecological Study - To study the ecological influence, if any, of the landfill operation on the adjacent ecosystems. To monitor ecological successions at restored areas for improving the landscaping restoration at landfill. Project Start Year: 2017, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Selection of Wetland Plants for Wastewater Treatment of Persistent Toxic Substances by Constructed Wetlands in Hong Kong Municipal wastewater treatment facilities are not specifically designed for treating persistent toxic substances (PTS), released from various industrial sources such as car dismantling, and electronic-waste recycling activities. These toxic chemicals entered into the sewage treatment plants (STWs) through point source discharge and urban runoff. The removal of polycyclic aromatic hydrocarbons (PAHs) and four metals (Chromium (Cr), Copper (Cu), Nickel (Ni) and Zinc (Zn)), the most abundant contaminants detected in the final effluent in our previous study (in Shatin STW and Stonecutters Island STW) and nutrients (Ammonium (NH4+) and nitrate (NO3−)) by wetland plants will be investigated. Three wetland plant species with the best performance in removing pollutants (PAHs, Cr, Cu, Ni, Zn, NH4+, NO3−) will be identified from the local environment via both field and greenhouse experiments. Their resistance to the pests commonly found in Hong Kong wetland plants (e.g. Pomacea canaliculatas (apple snail)) and water level fluctuations will also be studied. River water samples, sediment and plant specimens will be collected for chemical analyses. Bioaccumulation factors (BAFs), biota to sediment accumulation factors (BSAFs) of the four metals and the quasi-equilibrium factor (αpt) of PAHs will be derived from their concentrations in the water, sediment, and plant samples collected from different sites for selecting the most suitable plant community for specific contaminants. The selected wetland plants will be applied in a pilot-scale constructed wetland experiment, and the removal of PTS by different plant associations will be examined in both monoculture and polyculture. The study is expected to raise the interests of general public in wastewater treatment and exchange knowledge with professionals in the field, through publications, seminars and scientific meetings. The present study may also help to provide valuable information for dealing with water pollution problems in fresh water bodies (e.g. rivers and streams) by using constructed wetlands in the nearby region of Pearl River Delta. Project Start Year: 2017, Principal Investigator(s): CHOW, Ka Lai (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Effect of Heavy Metal Pollution on Male Fertility and Its Mechanism Heavy metal (such as lead, cadmium, chromium, etc.) exposure has become an urgent public health problem in Hong Kong over the last few months. It has also been recognised that high heavy metal level may have adverse effects on adults, one of which is reproductive function leading to abnormal semen parameters and reduction of male fertility. However, the results are not by any means conclusive as several confounding variables could have affected the observations. Now in Hong Kong, there is a window of opportunity to study the relationship, if any, between heavy metal level in the blood and semen parameters in couples presenting with infertility. In this study we are going to investigate this issue and the mechanism behind it. To determine if there is a significant relationship between blood heavy metal level and semen parameters, and the possible mechanism. Project Start Year: 2017, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Health Risk Assessments of Using Food Wastes as a Source of Protein to Culture Nile Tilapia (Oreochromis Niloticus) and Jade Perch (Scortum Barcoo) The major purpose of the project is using food waste as a resources to replace part of fish meal in commerical feed for cultureing freshwater fish (Nile Tilapia (Oreochromis Niloticus) and Jade Perch (Scortum Barcoo)). It is hope that fish fed by food waste pellets contain a lower pollutatnts levels than those fish fed by commerical fed. The major objecctives of this study are as the following: (1) to upgrade food wastes as feeds for culturing freshwater fish (Nile tilapia and Jade perch) and determine contaminants (persistent toxic substances (dichlorodiphenyltrichloroethane (DDT), polycyclic aromatic hydrocarbons (PAHs) and heavy metals (lead (Pb) and mercury (Hg)) ) concentations in food waste feeds compared with commercial feed; (2) to conduct feeding trials of fish using upgrade food wastes as feeds VS commercial feed; and (3) to conduct human health risk assessment for consuming the fish products fed with the food waste based diets compared with those fish fed by commercial feed and purchased from local markets based on the concentrations of DDT, PAHs, Pb and Hg. Project Start Year: 2017, Principal Investigator(s): MAN, Yu Bon 文裕邦 |
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Ecosystem Encounters 生態全接觸 -To promote teaching effectiveness by providing teaching resources for pre-/in-service teachers in Primary and Secondary schools; -To transfer knowledge of ecosystem services/functions through field visit, docent tour and lecture; -To provide hands-on information of ecosystem in Hong Kong for the general public; -To stimulate the participants (both teachers and public) to think more critically about environmental issues; and -To provide consultancy and technical supports for teachers in environmental education. Project Start Year: 2017, Principal Investigator(s): LI, Wai Chin 李偉展 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Safe and Quality Fish Production: Development of High Grade Pellets Using Food Wastes for Three Popular Marine Fish The ultimate goal of this project is to make use of local ingredients (food wastes and food processing wastes) to formulate fish pellets for the local aquaculture industry. Positive impacts on the environment, society and the marine aquaculture industry could be finally achieved, by promoting the sustainable development of the industry, both economically and ecologically. The main objectives of the present project are to: (1) develop suitable feed formulations for 3 different popular marine fish species, namely Sabah grouper, Pompano and Star snapper, using primarily local ingredients (food wastes and food processing wastes); (2) conduct laboratory-scale feeding trials on the growth performance of the 3 species; (3) conduct field-scale feeding trials to validate results obtained by laboratory-scale feeding trials; and (4) assess potential health risks of cultured products, in terms of concentrations of major undesirable chemicals contained in fish flesh. Project Start Year: 2016, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Upgrading Food Wastes as Feeds for Inland Fish Culture in South China The major objective of this project is to upgrade food wastes as feeds for culturing freshwater fish in a safer and healthier environment, at a lower cost and producing fish with fewer contaminants (such as DDT and mercury) than the commercial feed pellets available in South China, based on our previous successful projects: (1) Appropriate combinations of food wastes (meat and vegetables) are able to replace a major portion of fish meal for cultivating safe and quality low-trophic level fish, at a lower cost. (2) Additions of probiotics and enzymes can further enhance the feed conversion ratio of feeds, and the immunity of fish. (3) Additions of Chinese medicinal herbs can enhance the immunity of fish (e.g., against intestinal infection of grass carp). Major experiments will be conducted at The Hong Kong Institute of Education (chemical and physiological analyses), EcoPark (laboratory-scale feeding trials) and fish ponds located in the New Territories (field-scale feeding trials). The upgraded food waste feed pellets will also be produced in the EcoPark. It is hoped that this project will (1) turn food wastes into valuable resources by fermentation using microorganisms, (2) provide safe and quality freshwater fish, at a lower cost, (3) enhance fish immunity using Chinese herbal medicine, instead of using antibiotics and other drugs, and (4) partially ease the pressure of treating/disposing the ever increasing amount of food wastes generated in Hong Kong. Project Start Year: 2015, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Analysis of Environmental and Biota Samples for Assessment of Persistent Toxic Substances This project is aimed at studying the toxic effects of different environmental contaminants in sewage effluent discharged from two sewage treatment plants to Mai Po RAMSAR site, the most important biological conservation site in South China. I. Analysis of environmental (sewage/river water/pond water/sediment) and biota (fish/shrimp) samples for assessment of persistent toxic substances (Heavy Metals (HMs) and Metalloid; Polycyclic Aromatic Hydrocarbons (PAHs); Polybrominated Diphenyl Ethers (PBDEs); Dichlorodiphenyltrichloroethane (DDTs); and Erythromycin). II. Analysis of physical characteristics of environmental (sewage/river water/pond water/sediment) and biota (fish/shrimp) samples (Total Suspended Solids (TSS); Volatile Suspended Solids (VSS); Total Solids (TS%); Volatile Solids (VS%); pH; Chemical Oxygen Demand (COD); 5-Day Biochemical Oxygen Demand (BOD5) (with nitrifier inhibitor); Lipid contents of biota. Project Start Year: 2015, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Ecological and Health Risk Assessments of Major Persistent Toxic Substances (PTS) in Deep Bay Area, in Relation to Their Removal Efficiency in Yuen Long and Shek Wu Hui Sewage Treatment Works Mai Po Marshes have been facing increasing contamination in recent years, because of the discharge of domestic sewage, livestock wastewater, industrial effluent and agrochemicals into Deep Bay from the Pearl River, Shenzhen River and Shan Pui River. This may affect the migratory birds due to consuming organisms which may contain high levels of persistent toxic substances (PTS). We hypothesize that Yuen Long Sewage Treatment Work and Shek Wu Hui Sewage Treatment Work have different removal efficiencies for different PTS, and some of the PTS (As, Hg, Cd, Pb, Zn, Cu, DDT, PBDEs, PAHs and erythromycin) will find their ways into the Ramsar site and may impose adverse effects on biota, migratory birds and humans. Major objectives of this study are as the following: (1) To assess the removal efficiencies of PTS in different stages of Yuen Long and Shek Wu Hui STWs, and (2) To evaluate their concentrations and spatial distributions around the Ramsar site (by means of different bioassay tests ), and to conduct human health risk assessments (based on the studied PTS contained in shrimps- and fish) Project Start Year: 2014, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Field Study on Constructed Wetland in Removing Pollutants from Combined Village Sewage The construction of River Channels at Ta Kwu Ling of Ping Yuen River was completed in April 2006, aiming at improving the flow capacity of the river, to alleviating local flooding of the areas, during the wet seasons (DSD, 2007). In order to improve the visual impact and maintain habitat for wildlife, the channel embankments were generally covered by reinforced grass and/or perforated precast concrete base (i.e. grasscrete). Other environmental friendly features included aquatic planting bays along and adjacent to certain dry-weather flow channels, for maintaining a natural appearance. The geotextile mat was used to enhance the erosion resistance, by providing effective anchor to the root systems of grasses, forming a composite soil/root mat. Detailed instructions with regards to maintenance and repair of various facilities including those which serve as support for plants, such as the geotextile mat for reinforced grass system, aquatic planting bays and associated gabion walls, and pond features, were provided (DSD, 2007). Constructed wetlands are effective in purifying contaminants in wastewater which include domestic wastewater (with high biological oxygen demands and nutrient contents such as nitrogen and phosphorus), as well as industrial wastes (dominated by heavy metals and other toxic chemical compounds, such as pesticides and phenols, pending on the type of industries). There seems to be a need to conduct this proposed project, as some of the vegetation originally planted at the site, were not able to survive, and part of the areas have been taken over by some undesirable plant species. The major objectives of this investigation are to (1) use wetland plants for purifying wastewater, stabilizing the embankment as well as improving the scenic value of the site; (2) create habitats using different wetland species suitable for a wide range of biological organisms, such as dragonflies, snails, fish, etc); and (3) raise environmental awareness concerning ecological balance and biological conservation for school students as well as the general to use the sites as open-air classrooms. Project Start Year: 2014, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
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Health risk assessments of residents in the Pearl River Delta exposed to brominated flame retardants The major objectives of the project are to develop validated methods for the analysis of nBFRs, investigate their occurrences in foodstuffs, indoor dust and human tissues and to evaluate the associated health risks. This proposed project comprises 6 parts: (1) Determination of average daily intakes of BFRs for residents in the PRD, via consumption of fish and other food products available in the region; (2) Determination of average inhalation intakes of BFRs for residents in PRD, by measuring BFRs in indoor dust samples; (3) Measuring the transfer of BFRs through the intestinal barrier using the Caco-2 cell line model, the transport of BFRs across human cultured alveolar A549 cell monolayers and their tissue distribution in an animal model; (4) Assessing human health risks of oganobromine compounds in human blood and breast milk samples, and the correlation of BFRs concentrations between daily intakes and human body burdens; (5) Determining transgenerational exposure of BFRs to newborns in the region via placental transfer and breast feeding; and (6) Reviewing the current issues and providing guidance concerning food consumption for local residents, especially for sensitive populations such as pregnant woman, women of childbearing age, and infants, with regards to BFRs. Project Start Year: 2012, Principal Investigator(s): WONG, Ming Hung 黃銘洪 (MAN, Yu Bon 文裕邦 as Co-Investigator) |
Prizes and awards
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Research Output Prize of Dean’s Research Fund 2021/22 Date of receipt: 1/7/2022, Conferred by: The Education University of Hong Kong |
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Impact Case Study Prizes of Dean’s Research Fund 2020/21 Food contamination and waste disposal are two major global environmental issues. In this impact case study, our team has successfully developed fish feed pellets supplemented with recycled food waste for growing freshwater and marine fish. The results indicated food waste-based feed pellets could produce safe and quality fish at a lower cost, which will benefit reuse of food waste and sustainable fish farming. Date of receipt: 7/5/2021, Conferred by: The Education University of Hong Kong |
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Research Output Prize of Dean’s Research Fund 2019/20 Date of receipt: 16/6/2020, Conferred by: The Education University of Hong Kong |
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Research Output Prize of Dean’s Research Fund 2018/19 Date of receipt: 1/5/2019, Conferred by: The Education University of Hong Kong |
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Silver Award-The 47th International Exhibition of Inventions of Geneva The research team produced high-grade fish feed pellets by integrating food waste with supplements, such as enzymes, baker yeast and Chinese medicinal herbs. The new fish feed is effective in fostering safe and quality aquaculture at low cost, while at the same time reducing food waste and associated disposal problems. Date of receipt: 14/4/2019, Conferred by: The 47th International Exhibition of Inventions of Geneva |