Investigating Changes in Ozone Formation Chemistry during Summertime Pollution Events over the Northeastern United States.

ABSTRACT: Understanding the local-scale spatial and temporal variability of ozone formation is crucial for effective mitigation. We combine tropospheric vertical column densities (VCD_Trop) of formaldehyde (HCHO) and nitrogen dioxide (NO₂), referred to as HCHO-VCD_Trop and NO₂-VCD_Trop, retrieved from airborne remote sensing and the TROPOspheric Monitoring Instrument (TROPOMI) with ground-based measurements to investigate changes in ozone precursors and the inferred chemical production regime on high-ozone days in May-August 2018 over two Northeast urban domains. Over New York City (NYC) and Baltimore/Washington D.C. (BAL/DC), HCHO-VCD_Trop increases across the domain, but higher NO₂-VCD_Trop occurs mainly in urban ce

SUBMITTER: Tao M 

PROVIDER: S-EPMC9670856 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature