Dr CHING, Ping Pui    程炳沛 博士
Assistant Professor
Department of Science and Environmental Studies
Contact
ORCiD
0000-0003-1295-6176
Phone
(852) 2948 8229
Email
ppching@eduhk.hk
Address
10 Lo Ping Road, Tai Po, New Territories, Hong Kong
Scopus ID
36623311400
Research Interests
Keywords of research interests: Atmospheric Science, Atmospheric Aerosols, Aerosols and Clouds, Aerosol and Climate, Aerosol and Air Quality, Aerosol and Public Health

  1. Particle-resolved modeling of aerosols and their impact on cloud microphysics and climate;
  2. Regional air quality and regional climate modeling;
  3. Impact of atmospheric aerosols on air quality, environmental health and society.
Teaching Interests
  1. Physics
  2. Environmental Studies
  3. Education for Sustainability
External Appointments

(2020 May - Present) Collaborative Researcher (Aakash project), Japan Research Institute of Humanity and Nature (RIHN), Kyoto, Japan.

(2022 - Present) Editorial advisory board member of Asian Journal of Atmospheric Environment (AJAE)

(2019 - Present) Reviewer board and topic editor board member of Atmosphere

Personal Profile

Ching Ping Pui, Joseph received his BSc. in Physics and Mathematics and MPhil. in Physics from The University of Hong Kong. After that, he went to the United States to pursue PhD study in Atmospheric Sciences in the University of Illinois at Urbana-Champaign (UIUC), where he developed a research interest in atmospheric aerosol particles and studied their impacts on clouds and climate. Later, he joined Pacific Northwest National Laboratory (PNNL) of the US Department of Energy as a postdoc working on atmospheric aerosol modeling. In 2017, he moved to Japan to work in the Meteorological Research Institute of the Japan Meteorological Agency (JMA) and most recently in Tottori University as an Assistant Professor, where he extended his research to study the impacts of atmospheric aerosol particles on air quality and public health before joining Department of Science and Environmental Studies (SES), EdUHK in 2023.

Research Interests

Keywords of research interests: Atmospheric Science, Atmospheric Aerosols, Aerosols and Clouds, Aerosol and Climate, Aerosol and Air Quality, Aerosol and Public Health

  1. Particle-resolved modeling of aerosols and their impact on cloud microphysics and climate;
  2. Regional air quality and regional climate modeling;
  3. Impact of atmospheric aerosols on air quality, environmental health and society.
Teaching Interests

  1. Physics
  2. Environmental Studies
  3. Education for Sustainability
External Appointments

(2020 May - Present) Collaborative Researcher (Aakash project), Japan Research Institute of Humanity and Nature (RIHN), Kyoto, Japan.

(2022 - Present) Editorial advisory board member of Asian Journal of Atmospheric Environment (AJAE)

(2019 - Present) Reviewer board and topic editor board member of Atmosphere

Research Outputs

Journal Publications
Yu Yao, Jeffrey Curtis, Joseph Ching, Zhonghua Zheng, Nicole Riemer (2022). Quantifying the effects of mixing state on aerosol optical properties. Atmospheric Chemistry and Physics, 22(14), 9265-9282. https://doi.org/10.5194/acp-22-9265-2022
Mizuo Kajino, Makoto Deushi, Tsuyoshi Thomas Sekiyama, Naga Oshima, Keiya Yumimoto, Taichu Yasumichi Tanaka, Joseph Ching et al., (2021). Comparison of three aerosol representations of NHM-Chem (v1.0) for the simulations of air quality and climate-relevant variables. Geoscientific Model Development, 14(4), 2235-2264. https://doi.org/10.5194/gmd-14-2235-2021
Joseph Ching, Mizuo Kajino (2020). Rethinking air quality and climate change after COVID-19. International Journal of Environmental Research and Public Health, 17(14) https://doi.org/10.3390/ijerph17145167
Joseph Ching, Mizuo Kajino, Hitoshi Matsui (2020). Resolving aerosol mixing state increases accuracy of black carbon respiratory deposition estimates. One Earth, 3(6), 763-776. https://doi.org/10.1016/j.oneear.2020.11.004
Joseph Ching, Kouji Adachi, Yuji Zaizen, Yasuhito Igarashi, Mizuo Kajino (2019). Aerosol mixing state revealed by transmission electron microscopy pertaining to cloud formation and human airway deposition. npj Climate and Atmospheric Science, 2 https://doi.org/10.1038/s41612-019-0081-9
Manish Shrivastava, Meinrat O Andreae, Paulo Artaxo, Henrique MJ Barbosa, Larry K Berg, Joel Brito, Joseph Ching et al (2019). Urban pollution greatly enhances formation of natural aerosols over the Amazon rainforest. Nature Communications, 10 https://doi.org/10.1038/s41467-019-08909-4
Mizuo Kajino, Makoto Deushi, Tsuyoshi Thomas Sekiyama, Naga Oshima, Keiya Yumimoto, Taichu Yasumichi Tanaka, Joseph Ching et al., (2019). NHM-Chem, the Japan Meteorological Agency's regional meteorology – Chemistry model: Model evaluations toward the consistent predictions of the chemical, physical, and optical properties of aerosols. Journal of the Meteorological Society of Japan, 97(2), 337-374. https://doi.org/10.2151/JMSJ.2019-020
Joseph Ching, Matthew West, Nicole Riemer (2018). Quantifying impacts of aerosol mixing state on nucleation-scavenging of black carbon aerosol particles. Atmosphere, 9(1) https://doi.org/10.3390/atmos9010017
Joseph Ching, Mizuo Kajino (2018). Aerosol mixing state matters for particles deposition in human respiratory system. Scientific Reports, 8 https://doi.org/10.1038/s41598-018-27156-z
Joseph Ching, Jerome Fast, Matthew West, Nicole Riemer (2017). Metrics to quantify the importance of mixing state for CCN activity. Atmospheric Chemistry and Physics, 17(12), 7445-7458. https://doi.org/10.5194/acp-17-7445-2017
J Ching, N Riemer, M West (2016). Black carbon mixing state impacts on cloud microphysical properties: Effects of aerosol plume and environmental conditions. Journal of Geophysical Research, 121(10), 5990-6013. https://doi.org/10.1002/2016JD024851
Joseph Ching, Rahul A Zaveri, Richard C Easter, Nicole Riemer, Jerome D Fast (2016). A three-dimensional sectional representation of aerosol mixing state for simulating optical properties and cloud condensation nuclei. Journal of Geophysical Research, 121(10), 5912-5929. https://doi.org/10.1002/2015JD024323
Joseph Ching, Nicole Riemer, Matthew West (2012). Impacts of black carbon mixing state on black carbon nucleation scavenging: Insights from a particle-resolved model. Journal of Geophysical Research, 117(D23) https://doi.org/10.1029/2012JD018269
J. Ching, N. Riemer, M. Dunn, M. Miller (2010). In‐cloud turbulence structure of marine stratocumulus. Geophysical research letters, 37(21), L21808. https://doi.org/10.1029/2010GL045033

Conference Papers
Zhonghua Zheng, Joseph Ching, Jeffrey H. Curtis, Yu Yao, Peng Xu, Matthew West, Nicole Riemer (2020, December). Unsupervised Regionalization of Particle-resolved Aerosol Mixing State Indices on the Global Scale. NeurIPS 2020, AI for Earth Sciences Workshop, Hong Kong. https://doi.org/10.48550/arXiv.2012.03365

Projects

Examining the Aerosols impact on Climate and Air Quality: Insight from Modeling and Microscopy
Aerosol particles, known as particulate matter (PM), negatively impact air quality, climate, and human health. The impact of aerosol particles depends on the physical and chemical properties of the particles. In this project, we propose to (1) quantify the contribution of aerosols to cloud droplet formation and respiratory deposition efficiency of PM; (2) characterize the physical and chemical properties of aerosol particles in rural Hong Kong and the seasonal trend of those properties and; (3) evaluate regional model simulations of aerosol properties and air quality of Hong Kong with respect to measurements of air quality and meteorological variables.
Project Start Year: 2024, Principal Investigator(s): CHING, Ping Pui

 
Examining air quality of Asia by regional scale meteorology-chemistry simulations and observations of airborne microplastics
The objective of the proposed research is to investigate the impact of aerosol particles on air quality and human health. There are two subprojects in this proposal: subproject 1: Modeling studies of regional air quality and subproject 2: Observation of airborne microplastics.
Project Start Year: 2024, Principal Investigator(s): CHING, Ping Pui

 
An Interdisciplinary Study toward Clean Air, Public Health and Sustainable Agriculture: The Case of Crop Residue Burning in North India
This study addresses air pollution caused by large-scale post-harvest burning of rice straw in October and November in the states of Punjab and Haryana in northwestern India. Burning results in severe air pollution in surrounding areas, affecting public health and the well-being of hundreds of millions of people. This project will utilize observation data and model simulations to scientifically examine the connection between stubble burning in Punjab and severe air pollution in Delhi. The aim of this project is to encourage social changes aimed at realizing cleaner air, improved public health, and sustainable agriculture.
Project Start Year: 2023, Principal Investigator(s): Prabir K. Patra (CHING, Ping Pui as Collaborator)