https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/Head https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/assertion https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/provenance https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/pubinfo https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/assertion https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://purl.org/dc/terms/creator https://orcid.org/0000-0002-1539-6656 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://purl.org/dc/terms/creator https://orcid.org/0000-0002-2149-9133 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://purl.org/dc/terms/creator https://orcid.org/0000-0002-4892-454X https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://purl.org/dc/terms/creator https://orcid.org/0009-0004-6009-6304 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://purl.org/dc/terms/publisher https://ror.org/00var5q80 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://purl.org/dc/terms/subject http://aims.fao.org/aos/agrovoc/c_6498 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/fair/ff/terms/article https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/fdof/ontology#FAIRDigitalObject https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://www.w3.org/2000/01/rdf-schema#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. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 http://www.w3.org/2000/01/rdf-schema#label Sources of Atmospheric Volatile Organic Compounds During the Salt Lake Regional Smoke, Ozone and Aerosol Study (SAMOZA) 2022 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 https://schema.org/funder https://ror.org/021nxhr62 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 https://w3id.org/fdof/ontology#hasMetadata https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 https://www.w3.org/ns/dcat#contactPoint emily.cope@umontana.edu https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 https://www.w3.org/ns/dcat#endDate 2024-09-06 https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 https://www.w3.org/ns/dcat#startDate 2023-08-01 https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/provenance https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/assertion http://www.w3.org/ns/prov#wasAttributedTo https://orcid.org/0009-0008-8411-2742 https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/pubinfo https://orcid.org/0009-0008-8411-2742 http://xmlns.com/foaf/0.1/name Emily Regalado https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://purl.org/dc/terms/created 2026-01-21T17:44:47.813Z https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://purl.org/dc/terms/creator https://orcid.org/0009-0008-8411-2742 https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://purl.org/dc/terms/license https://creativecommons.org/licenses/by/4.0/ https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://purl.org/nanopub/x/introduces https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024JD041640 https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://purl.org/nanopub/x/supersedes https://w3id.org/np/RALG02YQr-Zxs6mmhw0h69BUdzsV5hbSeZjHHDK-CRxZQ https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog http://purl.org/nanopub/x/wasCreatedAt https://nanodash.knowledgepixels.com/ https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://w3id.org/np/o/ntemplate/wasCreatedFromProvenanceTemplate https://w3id.org/np/RA7lSq6MuK_TIC6JMSHvLtee3lpLoZDOqLJCLXevnrPoU https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RA0J4vUn_dekg-U1kK3AOEt02p9mT2WO03uGxLDec1jLw https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RAoTD7udB2KtUuOuAe74tJi1t3VzK0DyWS7rYVAq1GRvw https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RAukAcWHRDlkqxk7H2XNSegc1WnHI569INvNr-xdptDGI https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate https://w3id.org/np/RArM5GTwgxg9qslGX-XiQ-KTTUwdoM0KB1YqmT4GqTizA https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/sig http://purl.org/nanopub/x/hasAlgorithm RSA https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/sig http://purl.org/nanopub/x/hasPublicKey MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxzr6UBGMW6c8tegz0babaledWUEQ0PLDE4tp7Iinbe2DZtAtY5JUptKYuStWDZx+QER4808P8dejNWRnBDzgthYJm/AyNSXflHSJhz2+NC+h7RylOLxbwLEQocmyKKiYxa2gT85m6ajVL2M6TnfG67nnK+K2f7iCGL6wYXRITD1q+7+5SWqBdDXIV921W4IKWaD2GJk+NRBoOqQhbsrk8Tn5XsNd7DMYVHk47oMDGbeBnrOIoRPsbBgAcoCsxxhiB9yN6Lf8EUbnlXVEDzJuZk048L1BDZL+6nkA8btTQGP2ijUFWA7rTrod3LjUDQWLZS95njjl867dtmv/znYkzwIDAQAB https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/sig http://purl.org/nanopub/x/hasSignature F45omDMzoJJEIEjm3SwCzbfWwvtijLF9gzGPR7zzy+y3+N123EhGFoe06KQp/Mqk+yhVqbkqRJt2L2u6CjCJYAJYUWh3N4/kwUZhTAMJZPRhWw2tAM5jzoCgCzzYxRUikt6LvtAfsi4MFiYaaP0P/LwLh4Ta+65r9kD+kv/lbXa4syxiHPckX2JLXncWnj2MNXzt4IAymsYkkvenGk7weQ4PkRn7AGIABLC3k7wRif49RBdx6xwWOY6OAMToRDrE8VS216iHQCiNs3e9hLMif8W3Q4Av6lR79Kzgp6+2/m2X31ZSDkH8BYaaanqzzXMWqv4jX17kQvdG0z1S8iucqg== https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/sig http://purl.org/nanopub/x/hasSignatureTarget https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog https://w3id.org/np/RA_qKMd5uoA3NL0xPXKzYexPjLBhpiRIPAsMh8w3Cyfog/sig http://purl.org/nanopub/x/signedBy https://orcid.org/0009-0008-8411-2742