Volatile chemical products emerging as largest petrochemical source of urban organic emissions
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Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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- Teacher spread
- 0.210 · how far apart the two teachers sit on this one work
- Validation status
score_only:v0-immature-baseline· verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it
Abstract
A gap in emission inventories of urban volatile organic compound (VOC) sources, which contribute to regional ozone and aerosol burdens, has increased as transportation emissions in the United States and Europe have declined rapidly. A detailed mass balance demonstrates that the use of volatile chemical products (VCPs)-including pesticides, coatings, printing inks, adhesives, cleaning agents, and personal care products-now constitutes half of fossil fuel VOC emissions in industrialized cities. The high fraction of VCP emissions is consistent with observed urban outdoor and indoor air measurements. We show that human exposure to carbonaceous aerosols of fossil origin is transitioning away from transportation-related sources and toward VCPs. Existing U.S. regulations on VCPs emphasize mitigating ozone and air toxics, but they currently exempt many chemicals that lead to secondary organic aerosols.
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The record
- Venue
- Science
- Topic
- Atmospheric chemistry and aerosols
- Field
- Earth and Planetary Sciences
- Canadian institutions
- Université de Montréal
- Funders
- Natural Sciences and Engineering Research Council of CanadaFonds de recherche du Québec – Nature et technologiesAlfred P. Sloan FoundationNational Aeronautics and Space AdministrationNational Oceanic and Atmospheric AdministrationNational Science Foundation
- Keywords
- PetrochemicalEnvironmental sciencePollutionEnvironmental chemistryAir pollutionOzoneChemical industryWaste managementEnvironmental protectionChemistryEnvironmental engineeringEngineeringOrganic chemistry
- Has abstract in OpenAlex
- yes