Year: 2025
Type: preprint
Abstract: Formaldehyde is an important hazardous air pollutant (HAP) that is a leading driver for HAP related cancer risk in the United States. It is emitted directly by numerous anthropogenic and natural sources, and formed as a secondary product from volatile organic compounds (VOCs) photooxidation. Formaldehyde is a significant source of radicals in the atmosphere that result in ozone and particulate matter (PM) formation. Routine measurements of formaldehyde in regulatory networks rely on EPA Compendium Method TO-11A, which is based on HPLC analysis of derivatized, time-averaged cartridge samples. The U.S. EPA Office of Research and Development has been involved in the continuing evaluation, analysis, and comparison of commercially available continuous formaldehyde measurements, as well as the promotion of novel technologies for ambient air and source emissions monitoring applications. We present results from our ongoing evaluation and intercomparison of newer formaldehyde measurement technologies in both controlled laboratory experiments and ambient air.
Authors: Andrew Whitehill, Andrew R Whitehill, Lukas Valin, David Williams, James Szykman, Russell Long, Surender Kaushik, Peter Furdyna, Dirk Felton
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W3047907724