Articles | Volume 25, issue 14
https://doi.org/10.5194/acp-25-7777-2025
https://doi.org/10.5194/acp-25-7777-2025
Measurement report
 | 
23 Jul 2025
Measurement report |  | 23 Jul 2025

Measurement report: Diurnal variability in NO2 and HCHO lower-tropospheric vertical profiles in southeastern Los Angeles

Peter K. Peterson, Lisa F. Hernandez, Leslie Tanaka, and Alejandro Dunnick

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Cited articles

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This work uses spectroscopy to examine the vertical distribution of nitrogen dioxide and formaldehyde in southeastern Los Angeles, USA, a region heavily impacted by ozone pollution. We examine how both the amount and vertical profile of the two species vary throughout the day, finding that differences between the two species impact the utilization of satellite-based measurements to diagnose ozone production chemistry and that these impacts are variable depending on the time of day.
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