Ubiquitous atmospheric production of organic acids mediated by cloud droplets

B Franco, T Blumenstock, C Cho, L Clarisse… - Nature, 2021 - nature.com
Atmospheric acidity is increasingly determined by carbon dioxide and organic acids,–.
Among the latter, formic acid facilitates the nucleation of cloud droplets and contributes to …

Inferring Changes in Summertime Surface Ozone–NOx–VOC Chemistry over US Urban Areas from Two Decades of Satellite and Ground-Based Observations

X Jin, A Fiore, KF Boersma, ID Smedt… - Environmental science & …, 2020 - ACS Publications
Urban ozone (O3) formation can be limited by NO x, VOCs, or both, complicating the design
of effective O3 abatement plans. A satellite-retrieved ratio of formaldehyde to NO2 …

Ambient volatile organic compounds in a suburban site between Beijing and Tianjin: Concentration levels, source apportionment and health risk assessment

Y Yang, D Ji, J Sun, Y Wang, D Yao, S Zhao… - Science of the Total …, 2019 - Elsevier
Volatile organic compounds (VOCs) have vital implications for secondary pollutants,
atmospheric oxidation and human health. Ambient VOCs were investigated using an online …

Variations and sources of volatile organic compounds (VOCs) in urban region: insights from measurements on a tall tower

XB Li, B Yuan, S Wang, C Wang, J Lan… - Atmospheric …, 2022 - acp.copernicus.org
Volatile organic compounds (VOCs) are key precursors of ozone and particulate matter,
which are the two dominant air pollutants in urban environments. However, compositions …

The global budget of atmospheric methanol: new constraints on secondary, oceanic, and terrestrial sources

KH Bates, DJ Jacob, S Wang… - Journal of …, 2021 - Wiley Online Library
Methanol is the second‐most abundant organic gas in the remote atmosphere after
methane, but its sources are poorly understood. Here, we report a global budget of methanol …

Investigating changes in ozone formation chemistry during summertime pollution events over the Northeastern United States

M Tao, AM Fiore, X Jin, LD Schiferl… - Environmental …, 2022 - ACS Publications
Understanding the local-scale spatial and temporal variability of ozone formation is crucial
for effective mitigation. We combine tropospheric vertical column densities (VCDTrop) of …

[HTML][HTML] Constraining remote oxidation capacity with ATom observations

KR Travis, CL Heald, HM Allen, EC Apel… - Atmospheric …, 2020 - acp.copernicus.org
The global oxidation capacity, defined as the tropospheric mean concentration of the
hydroxyl radical (OH), controls the lifetime of reactive trace gases in the atmosphere such as …

NOx and O3 Trends at US Non‐Attainment Areas for 1995–2020: Influence of COVID‐19 Reductions and Wildland Fires on Policy‐Relevant Concentrations

DA Jaffe, M Ninneman, HC Chan - Journal of Geophysical …, 2022 - Wiley Online Library
We analyzed NO2 and O3 data from 32 US non‐attainment areas (NAAs) for 1995–2020.
Since 1995, all regions have shown steady reductions in NO2 and the weekend‐weekday …

Constraining emissions of volatile organic compounds from western US wildfires with WE-CAN and FIREX-AQ airborne observations

L Jin, W Permar, V Selimovic… - Atmospheric …, 2023 - acp.copernicus.org
The impact of biomass burning (BB) on the atmospheric burden of volatile organic
compounds (VOCs) is highly uncertain. Here we apply the GEOS-Chem chemical transport …

Anthropogenic VOCs in the Long Island Sound, NY Airshed and their role in ozone production

AM Ring, RR Dickerson, AE Sebol, X Ren… - Atmospheric …, 2023 - Elsevier
Abstract Cities like New York and areas downwind have poor air quality due to pollution
generated by human activity. Ozone (O 3), a harmful pollutant, is produced in the …