Submicron ambient particulate matter is known to have significant effects on visibility, climate, and human health. Currently, particulate matter less than 2.5 μm (PM2.5) in diameter is monitored and regulated by the EPA based on particulate size. However, the identification of causal agents of adverse health effects in atmospheric aerosols are not well known. Thus, chemical characterization and quantification of potentially harmful components of atmospheric aerosol is important. Using a PM2.5 high volume aerosol sampler, aerosols were collected on a quartz filter on the Hendrix College campus in Conway, Arkansas. Methanol and isooctane extractions followed by gas chromatography/mass spectrometry (GC/MS) analysis were used to conduct a preliminary qualitative assessment of the organic components of local PM2.5. Bis(2-ethylhexyl)phthalate, a common emission product from plastics industries and personal care products, was identified in several samples quantified using GC/MS. Average ambient PM2.5 aerosol concentrations, identities of polar and nonpolar organic aerosol components, potential emission sources, and quantification of Bis(2-ethylhexyl)phthalate in aerosol filter samples will be reported.

Bis(2-ethylhexyl)phthalate (DEHP) in PM2.5 aerosol samples

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.