{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T11:31:34Z","timestamp":1791113494842,"version":"4.1.0"},"reference-count":58,"publisher":"American Chemical Society (ACS)","issue":"17","license":[{"start":{"date-parts":[[2015,8,13]],"date-time":"2015-08-13T00:00:00Z","timestamp":1439424000000},"content-version":"vor","delay-in-days":365,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_termsofuse.html"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,9,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The heterogeneous reactions of ambient particulate matter (PM)-bound polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs (NPAHs) with NO3\/N2O5, OH radicals, and O3 were studied in a laboratory photochemical chamber. Ambient PM2.5 and PM10 samples were collected from Beijing, China, and Riverside, California, and exposed under simulated atmospheric long-range transport conditions for O3 and OH and NO3 radicals. Changes in the masses of 23 PAHs and 20 NPAHs, as well as the direct and indirect-acting mutagenicity of the PM (determined using the Salmonella mutagenicity assay with TA98 strain), were measured prior to and after exposure to NO3\/N2O5, OH radicals, and O3. In general, O3 exposure resulted in the highest relative degradation of PM-bound PAHs with more than four rings (benzo[a]pyrene was degraded equally well by O3 and NO3\/N2O5). However, NPAHs were most effectively formed during the Beijing PM exposure to NO3\/N2O5. In ambient air, 2-nitrofluoranthene (2-NF) is formed from the gas-phase NO3 radical- and OH radical-initiated reactions of fluoranthene, and 2-nitropyrene (2-NP) is formed from the gas-phase OH radical-initiated reaction of pyrene. There was no formation of 2-NF or 2-NP in any of the heterogeneous exposures, suggesting that gas-phase formation of NPAHs did not play an important role during chamber exposures. Exposure of Beijing PM to NO3\/N2O5 resulted in an increase in direct-acting mutagenic activity which was associated with the formation of mutagenic NPAHs. No NPAH formation was observed in any of the exposures of the Riverside PM. This was likely due to the accumulation of atmospheric degradation products from gas-phase reactions of volatile species onto the surface of PM collected in Riverside prior to exposure in the chamber, thus decreasing the availability of PAHs for reaction.<\/jats:p>","DOI":"10.1021\/es5015407","type":"journal-article","created":{"date-parts":[[2014,8,13]],"date-time":"2014-08-13T15:39:41Z","timestamp":1407944381000},"page":"10155-10164","source":"Crossref","is-referenced-by-count":111,"title":["Heterogeneous\nReactions of Particulate Matter-Bound\nPAHs and NPAHs with NO3\/N2O5, OH Radicals, and O3 under Simulated Long-Range Atmospheric Transport Conditions: Reactivity\nand Mutagenicity"],"prefix":"10.1021","volume":"48","author":[{"given":"Narumol","family":"Jariyasopit","sequence":"first","affiliation":[{"name":"Oregon State University , , , ,","place":["Corvallis, Oregon, United States, 97331"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn","family":"Zimmermann","sequence":"additional","affiliation":[{"name":"University of California , , , ,","place":["Riverside, California, United States, 92521"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jill","family":"Schrlau","sequence":"additional","affiliation":[{"name":"Oregon State University , , , ,","place":["Corvallis, Oregon, United States, 97331"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janet","family":"Arey","sequence":"additional","affiliation":[{"name":"University of California , , , ,","place":["Riverside, California, United States, 92521"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roger","family":"Atkinson","sequence":"additional","affiliation":[{"name":"University of California , , , ,","place":["Riverside, California, United States, 92521"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tian-Wei","family":"Yu","sequence":"additional","affiliation":[{"name":"Oregon State University , , , ,","place":["Corvallis, Oregon, United States, 97331"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roderick H.","family":"Dashwood","sequence":"additional","affiliation":[{"name":"Institute of Biosciences & Technology, Texas A&M Health Science Center , , ,","place":["Houston, Texas, United States, 77030"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shu","family":"Tao","sequence":"additional","affiliation":[{"name":"Peking University , , , ,","place":["Beijing, China, 100871"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Staci L. Massey","family":"Simonich","sequence":"additional","affiliation":[{"name":"Oregon State University , , , ,","place":["Corvallis, Oregon, United States, 97331"]},{"name":"Oregon State University , , , ,","place":["Corvallis, Oregon, United States, 97331"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2014,8,13]]},"reference":[{"key":"2026090303250575000_cit1","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1016\/j.atmosenv.2007.10.009","article-title":"Nitrated and oxygenated\nderivatives of polycyclic aromatic\nhydrocarbons in the ambient air of two French alpine valleys: Part\n1: Concentrations, sources and gas\/particle partitioning","volume":"42","author":"Albinet","year":"2008","journal-title":"Atmos. 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Part 2: PAHs adsorbed\non diesel particulate exhaust SRM 1650a","volume":"40","author":"Esteve","year":"2006","journal-title":"Atmos.\nEnviron."},{"key":"2026090303250575000_cit21","doi-asserted-by":"crossref","first-page":"12459","DOI":"10.1021\/es302743z","article-title":"Synergy between\nsecondary organic aerosols and long-range\ntransport of polycyclic aromatic hydrocarbons","volume":"46","author":"Zelenyuk","year":"2012","journal-title":"Environ. Sci. Technol."},{"key":"2026090303250575000_cit22","doi-asserted-by":"crossref","first-page":"1004","DOI":"10.1021\/es00140a020","article-title":"Photolysis of polycyclic aromatic hydrocarbons adsorbed\non simulated atmospheric particulates","volume":"19","author":"Behymer","year":"1985","journal-title":"Environ.\nSci. 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Health Perspect."}],"container-title":["Environmental Science &amp; Technology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/es5015407","content-type":"application\/pdf","content-version":"vor","intended-application":"unspecified"},{"URL":"https:\/\/pubs.acs.org\/esthag\/article-pdf\/48\/17\/10155\/10364256\/es5015407.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.acs.org\/esthag\/article-pdf\/48\/17\/10155\/10364256\/es5015407.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T07:25:21Z","timestamp":1788420321000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/esthag\/article\/48\/17\/10155\/978332\/Heterogeneous-Reactions-of-Particulate-Matter"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,8,13]]},"references-count":58,"journal-issue":{"issue":"17","published-online":{"date-parts":[[2014,8,13]]},"published-print":{"date-parts":[[2014,9,2]]}},"URL":"https:\/\/doi.org\/10.1021\/es5015407","relation":{},"ISSN":["0013-936X","1520-5851"],"issn-type":[{"value":"0013-936X","type":"print"},{"value":"1520-5851","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,8,13]]}}}