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- 2024JD041640 type article assertion.
- 2024JD041640 type FAIRDigitalObject assertion.
- 2024JD041640 label "Sources of Atmospheric Volatile Organic Compounds During the Salt Lake Regional Smoke, Ozone and Aerosol Study (SAMOZA) 2022" assertion.
- 2024JD041640 comment "Salt Lake City, Utah has higher concentrations of ozone, a pollutant harmful to human and plant life, in the atmosphere than the standard set by the United States Environmental Protection Agency (US EPA). The reasons for the high levels of ozone remain uncertain. Volatile organic compounds (VOCs) are a class of air pollutants that undergo reactions that produce ozone. Understanding their sources and reactions is important to be able to reduce air pollution. In this study, we measured 35 VOCs in SLC in August and September 2022 and used a model to identify their major sources. Concentrations of hazardous VOCs identified by the US EPA increased by 45%–217% when wildfire smoke was present in the air. Methanol and ethanol were the most important VOCs in terms of total concentration in the air, while isoprene and monoterpenes were the most important in terms of reactions that could create ozone. According to the model results, VOCs are emitted from five major sources including traffic and solvent use. Further measurements are needed to confirm the model results and reduce uncertainty of the important sources of VOCS. Major findings:The Salt Lake regional Smoke, Ozone and Aerosol Study (SAMOZA) conducted in late 2022 measured 35 different volatile organic compounds (VOCs) using advanced mass spectrometry and liquid chromatography. The researchers found that total VOC levels in the city averaged 32 parts per billion (ppb), but spiked as high as 141 ppb during certain hours. This data is used to calculate "OH reactivity," which helps scientists understand how quickly these chemicals react in the air to form pollutants like smog and ozone." assertion.
- 2024JD041640 creator 0000-0002-4892-454X assertion.
- 2024JD041640 creator 0000-0002-1539-6656 assertion.
- 2024JD041640 creator 0000-0002-2149-9133 assertion.
- 2024JD041640 creator 0009-0004-6009-6304 assertion.
- 2024JD041640 subject c_6498 assertion.
- 2024JD041640 publisher 00var5q80 assertion.
- 2024JD041640 startDate "2023-08-01" assertion.
- 2024JD041640 endDate "2024-09-06" assertion.
- 2024JD041640 hasMetadata RALG02YQr-Zxs6mmhw0h69BUdzsV5hbSeZjHHDK-CRxZQ assertion.
- 2024JD041640 contactPoint "emily.cope@umontana.edu" assertion.
- 2024JD041640 funder 0078xmk34 assertion.