The global impacts of COVID-19 lockdowns on urban air pollution: A critical review and recommendations

GI Gkatzelis, JB Gilman, SS Brown, H Eskes… - Elem Sci …, 2021 - online.ucpress.edu
The coronavirus-19 (COVID-19) pandemic led to government interventions to limit the
spread of the disease which are unprecedented in recent history; for example, stay at home …

[HTML][HTML] Source sector and fuel contributions to ambient PM2. 5 and attributable mortality across multiple spatial scales

EE McDuffie, RV Martin, JV Spadaro, R Burnett… - Nature …, 2021 - nature.com
Ambient fine particulate matter (PM 2.5) is the world's leading environmental health risk
factor. Reducing the PM 2.5 disease burden requires specific strategies that target dominant …

Formation mechanism and control strategy for particulate nitrate in China

H Wang, K Lu, Z Tan, X Chen, Y Liu, Y Zhang - Journal of Environmental …, 2023 - Elsevier
Over the past decade, fine particulate matter (PM) pollution in China has been abated
significantly, benefiting from strict emission control measures, but particulate nitrate …

Increased night-time oxidation over China despite widespread decrease across the globe

H Wang, H Wang, X Lu, K Lu, L Zhang, YJ Tham… - Nature …, 2023 - nature.com
Nitrogen oxides (NO x= NO+ NO2) emitted from combustion and natural sources are
reactive gases that regulate the composition of Earth's atmosphere. Nocturnal oxidation …

Persistent heavy winter nitrate pollution driven by increased photochemical oxidants in northern China

X Fu, T Wang, J Gao, P Wang, Y Liu… - Environmental …, 2020 - ACS Publications
Nitrate is an increasingly important component of fine particulate matter (PM2. 5) during
winter in northern China. Past emission control has been ineffective in reducing winter …

Fast photochemistry in wintertime haze: consequences for pollution mitigation strategies

K Lu, H Fuchs, A Hofzumahaus, Z Tan… - … science & technology, 2019 - ACS Publications
In contrast to summer smog, the contribution of photochemistry to the formation of winter
haze in northern mid-to-high latitude is generally assumed to be minor due to reduced solar …

Ozone chemistry in western US wildfire plumes

L Xu, JD Crounse, KT Vasquez, H Allen… - Science …, 2021 - science.org
Wildfires are a substantial but poorly quantified source of tropospheric ozone (O3). Here, to
investigate the highly variable O3 chemistry in wildfire plumes, we exploit the in situ …

Control of particulate nitrate air pollution in China

S Zhai, DJ Jacob, X Wang, Z Liu, T Wen, V Shah… - Nature …, 2021 - nature.com
The concentration of fine particulate matter (PM2. 5) across China has decreased by 30–
50% over the period 2013–2018 due to stringent emission controls. However, the nitrate …

Ozone pollution mitigation strategy informed by long-term trends of atmospheric oxidation capacity

W Wang, X Li, Y Cheng, DD Parrish, R Ni, Z Tan… - Nature …, 2024 - nature.com
Tropospheric ozone pollution is a critical air-quality concern in China. However, the most
effective mitigation approach remains unclear, with prioritizing the reduction of volatile …

Field determination of nitrate formation pathway in winter Beijing

X Chen, H Wang, K Lu, C Li, T Zhai, Z Tan… - … science & technology, 2020 - ACS Publications
Particulate nitrate (pNO3–) has often been found to be the major component of fine particles
in urban air-sheds in China, the United States, and Europe during winter haze episodes in …