Projects
Nov 2023 - current
California Statewide Air Toxics Assessment.
CATA Website
Simulate primary air toxics by CALPUFF, secondary air toxics by CMAQ at various spatial resolutions
Estimate cancer risk over study regions
Visualize the model results to the publics: CATA
Sep 2022 - Nov 2023
Alternative Jet Fuel in California - Modeling LCFS Policy Scenarios and Air Quality Impact Considerations in the 2030 timeframe.
Highlights
Developed 2030 emissions inventories under three energy scenarios
Conducted air quality modeling for PM2.5, O3 and SOx over California
Estimated the air quality impact trade-offs when sustainable aviation fuel (SAF) consumption is rapidly expaned over next decades
Jun 2021 - Sep 2023
Source Contributions to Formaldehyde (HCHO) Concentrations in Southeast Texas.
Highlights
Conducted source-oriented chemical transport model simulations during 2010 over southeast Texas (16 HCHO sources tracked)
Analyzed the major sources of HCHO, which are refinery and industrial-related, further analyzed secondary HCHO contribution in Houston area
Investigated HCHO EJ issue over Houston and Beaumont
Sep 2020 - Sep 2022
Impacts of Oregon State Clean Fuels Program (CFP) on Public Health in 2035.
Highlights
Developed 2035 emissions under three energy scenarios by SMOKE & NEI 2017
Conducted air quality simulations for PM2.5 and NOx exposure fields
Evaluated health co-benefits for BAU and two CFP energy scenarios by BenMAP, Investigated the EJ issue over Portland and Salem
Jun 2018 - Mar 2021
Optimal Energy Portfolio to Sustain Economic Advantage, Achieve GHG Targets, and Minimize PM2.5.
Highlights
Conducted WRF-Chem simulations with spatial resolution ranging from 250m to 36km, decided the most appropriate resolution for EJ study
Evaluated health co-benefits for 6 energy scenarios by using BenMAP
Helped governors/stakeholders better decide the most promising emission sources for future air quality improvement
Jul 2016 - Jul 2019
Improving Spatial Surrogates for Emissions Inventories in California.
Highlights
Updated 7 & created 3 spatial surrogates for CARB emissions inventories by using ArcGIS, Python, and public database (census-based data, construction permit, etc.)
Improved spatial accuracy of emissions from off-road construction equipment, industrial-related, agricultural-related, and residential-related
Improved chemical transport model simulation accuracy by 6%
Jan 2015 - May 2016
Background Concentrations in West Coast U.S.: the Impacts of long-range transportation from West of Pacific Ocean.
Measured PM2.5, O3, HCHO, NOx at a rural site at Chews Ridge in the Carmel Valley
Investiaged the chemical relationships between measured pollutants
Calculated actual [NO2]/[NO] ratio
Publications
Yiting Li, Yusheng Zhao, Michael J Kleeman. "Formaldehyde exposure racial disparities in Southeast Texas."
Environmental Science & Technology 58, no. 10 (2024): 4680-4690.
https://doi.org/10.1021/acs.est.3c02282
PDF
Yiting Li, Anikender Kumar, Yin Li, Michael J Kleeman. "Adoption of low-carbon fuels reduces race/ethnicity disparities in air pollution exposure in California."
Science of The Total Environment 834 (2022): 155230.
https://doi.org/10.1016/j.scitotenv.2022.155230
PDF
Yiting Li, Anikender Kumar, Sofia Hamilton, Jeremy D Lea, John Harvey, Michael J Kleeman. "Optimized environmental justice calculations for air pollution disparities in Southern California."
Heliyon 8, no. 10 (2022).
https://doi.org/10.1016/j.heliyon.2022.e10732
PDF
Yiting Li, Caroline Rodier, Jeremy D Lea, John Harvey, Michael J Kleeman. "Improving spatial surrogates for area source emissions inventories in California."
Atmospheric Environment 247 (2021): 117665.
https://doi.org/10.1016/j.atmosenv.2020.117665
PDF
Yusheng Zhao, Yin Li,
Yiting Li, Anikender Kumar, Michael J Kleeman. "Southern California ozone exposure disparities under different emissions control strategies in a low-carbon future."
Science of The Total Environment 963 (2025): 178379.
https://doi.org/10.1016/j.scitotenv.2025.178379
PDF
Yusheng Zhao, Yin Li,
Yiting Li, Anikender Kumar, Qi Ying, Michael J Kleeman. "Reducing southern California ozone concentrations in the year 2050 under a low carbon energy scenario."
Atmospheric Environment 320 (2024): 120315.
https://doi.org/10.1016/j.atmosenv.2023.120315
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Yusheng Zhao,
Yiting Li, Anikender Kumar, Qi Ying, Francois Vandenberghe, and Michael J. Kleeman. "Separately resolving NOx and VOC contributions to ozone formation."
Atmospheric Environment 285 (2022): 119224.
https://doi.org/10.1016/j.atmosenv.2022.119224
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Yin Li, Christopher Yang,
Yiting Li, Anikender Kumar, Michael J Kleeman. "Future emissions of particles and gases that cause regional air pollution in California under different greenhouse gas mitigation strategies."
Atmospheric Environment 273 (2022): 118960.
https://doi.org/10.1016/j.atmosenv.2022.118960
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