Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon
To examine the molecular-level composition and acute toxicity per unit carbon of the petroleum-derived dissolved organic matter (DOMHC) produced via photo-oxidation, heavy and light oils were irradiated over seawater with simulated sunlight. Increases in dissolved organic carbon concentrations as a...
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| Veröffentlicht in: | Environmental science & technology 2019-07, Vol.53 (14), p.8235-8243 |
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| creator | Zito, Phoebe Podgorski, David C Johnson, Joshua Chen, Huan Rodgers, Ryan P Guillemette, François Kellerman, Anne M Spencer, Robert G. M Tarr, Matthew A |
| description | To examine the molecular-level composition and acute toxicity per unit carbon of the petroleum-derived dissolved organic matter (DOMHC) produced via photo-oxidation, heavy and light oils were irradiated over seawater with simulated sunlight. Increases in dissolved organic carbon concentrations as a function of time were associated with changes in the DOMHC composition and acute toxicity per unit carbon. Parallel factor analysis showed that the fluorescent dissolved organic matter (FDOM) composition produced from the heavy oil became more blue-shifted over time, while the light oil produced a mixture of blue- and red-shifted components similar to FDOM signatures. Ultrahigh-resolution mass spectrometry reveals that the composition of the DOMHC produced from both heavy and light oils was initially relatively reduced, with low O/C. With time, the composition of the DOMHC produced from the heavy oil shifted to unsaturated, high-oxygen compounds, while that produced from the light oil comprised a range of high O/C aliphatic, unsaturated, and aromatic compounds. Microtox assays suggest that the DOMHC initially produced is the most toxic (62% inhibition); however, after 24 h, a rapid decrease in toxicity decreased linearly to 0% inhibition for the heavy DOMHC and 12% inhibition for the light DOMHC at extended exposure periods. |
| doi_str_mv | 10.1021/acs.est.9b01894 |
| format | Article |
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M ; Tarr, Matthew A</creator><creatorcontrib>Zito, Phoebe ; Podgorski, David C ; Johnson, Joshua ; Chen, Huan ; Rodgers, Ryan P ; Guillemette, François ; Kellerman, Anne M ; Spencer, Robert G. M ; Tarr, Matthew A</creatorcontrib><description>To examine the molecular-level composition and acute toxicity per unit carbon of the petroleum-derived dissolved organic matter (DOMHC) produced via photo-oxidation, heavy and light oils were irradiated over seawater with simulated sunlight. Increases in dissolved organic carbon concentrations as a function of time were associated with changes in the DOMHC composition and acute toxicity per unit carbon. Parallel factor analysis showed that the fluorescent dissolved organic matter (FDOM) composition produced from the heavy oil became more blue-shifted over time, while the light oil produced a mixture of blue- and red-shifted components similar to FDOM signatures. Ultrahigh-resolution mass spectrometry reveals that the composition of the DOMHC produced from both heavy and light oils was initially relatively reduced, with low O/C. With time, the composition of the DOMHC produced from the heavy oil shifted to unsaturated, high-oxygen compounds, while that produced from the light oil comprised a range of high O/C aliphatic, unsaturated, and aromatic compounds. Microtox assays suggest that the DOMHC initially produced is the most toxic (62% inhibition); however, after 24 h, a rapid decrease in toxicity decreased linearly to 0% inhibition for the heavy DOMHC and 12% inhibition for the light DOMHC at extended exposure periods.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/acs.est.9b01894</identifier><identifier>PMID: 31194531</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Acute toxicity ; Aliphatic compounds ; Aromatic compounds ; Carbon ; Chemical analysis ; Composition ; Dissolved organic carbon ; Dissolved organic matter ; Factor analysis ; Fluorescence ; Inhibition ; Mass spectrometry ; Mass spectroscopy ; Microtox ; Oil ; Organic Chemicals ; Oxidation ; Oxygen compounds ; Petroleum ; Photooxidation ; Seawater ; Toxicity ; Water analysis ; Water Pollutants, Chemical</subject><ispartof>Environmental science & technology, 2019-07, Vol.53 (14), p.8235-8243</ispartof><rights>Copyright American Chemical Society Jul 16, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a398t-5a16af7e4e4c24e51eb0d062c7ae4fb25bd8fa91e97a586f13c6dfe467edfe3</citedby><cites>FETCH-LOGICAL-a398t-5a16af7e4e4c24e51eb0d062c7ae4fb25bd8fa91e97a586f13c6dfe467edfe3</cites><orcidid>0000-0003-1302-2850 ; 0000-0002-1070-5923 ; 0000-0002-7011-1940 ; 0000-0002-3399-1336</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.est.9b01894$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.est.9b01894$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2751,27055,27903,27904,56716,56766</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31194531$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zito, Phoebe</creatorcontrib><creatorcontrib>Podgorski, David C</creatorcontrib><creatorcontrib>Johnson, Joshua</creatorcontrib><creatorcontrib>Chen, Huan</creatorcontrib><creatorcontrib>Rodgers, Ryan P</creatorcontrib><creatorcontrib>Guillemette, François</creatorcontrib><creatorcontrib>Kellerman, Anne M</creatorcontrib><creatorcontrib>Spencer, Robert G. M</creatorcontrib><creatorcontrib>Tarr, Matthew A</creatorcontrib><title>Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>To examine the molecular-level composition and acute toxicity per unit carbon of the petroleum-derived dissolved organic matter (DOMHC) produced via photo-oxidation, heavy and light oils were irradiated over seawater with simulated sunlight. Increases in dissolved organic carbon concentrations as a function of time were associated with changes in the DOMHC composition and acute toxicity per unit carbon. Parallel factor analysis showed that the fluorescent dissolved organic matter (FDOM) composition produced from the heavy oil became more blue-shifted over time, while the light oil produced a mixture of blue- and red-shifted components similar to FDOM signatures. Ultrahigh-resolution mass spectrometry reveals that the composition of the DOMHC produced from both heavy and light oils was initially relatively reduced, with low O/C. With time, the composition of the DOMHC produced from the heavy oil shifted to unsaturated, high-oxygen compounds, while that produced from the light oil comprised a range of high O/C aliphatic, unsaturated, and aromatic compounds. Microtox assays suggest that the DOMHC initially produced is the most toxic (62% inhibition); however, after 24 h, a rapid decrease in toxicity decreased linearly to 0% inhibition for the heavy DOMHC and 12% inhibition for the light DOMHC at extended exposure periods.</description><subject>Acute toxicity</subject><subject>Aliphatic compounds</subject><subject>Aromatic compounds</subject><subject>Carbon</subject><subject>Chemical analysis</subject><subject>Composition</subject><subject>Dissolved organic carbon</subject><subject>Dissolved organic matter</subject><subject>Factor analysis</subject><subject>Fluorescence</subject><subject>Inhibition</subject><subject>Mass spectrometry</subject><subject>Mass spectroscopy</subject><subject>Microtox</subject><subject>Oil</subject><subject>Organic Chemicals</subject><subject>Oxidation</subject><subject>Oxygen compounds</subject><subject>Petroleum</subject><subject>Photooxidation</subject><subject>Seawater</subject><subject>Toxicity</subject><subject>Water analysis</subject><subject>Water Pollutants, Chemical</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kDtPwzAYRS0EouUxsyFLjCitH7ETj1XFSyqiEh3YIsf5DK7SuNgJovx6UrV0Y7rLufdKB6ErSkaUMDrWJo4gtiNVEpqr9AgNqWAkEbmgx2hICOWJ4vJtgM5iXBJCGCf5KRpwSlUqOB2ixbOvwXS1DskMvqDGU79a--ha5xusmwpPTNcCXvhvZ1y7wd7i-YdvffR1V7ra_UCF59AG_w6NM3iqQ-mbC3RidR3hcp_n6PX-bjF9TGYvD0_TySzRXOVtIjSV2maQQmpYCoJCSSoimck0pLZkoqxyqxUFlWmRS0u5kZWFVGbQBz9HN7vVdfCfXW-hWPouNP1hwZhUPBdC0p4a7ygTfIwBbLEObqXDpqCk2DoseofFtr132Deu97tduYLqwP9J64HbHbBtHj7_m_sFRUV-hg</recordid><startdate>20190716</startdate><enddate>20190716</enddate><creator>Zito, Phoebe</creator><creator>Podgorski, David C</creator><creator>Johnson, Joshua</creator><creator>Chen, Huan</creator><creator>Rodgers, Ryan P</creator><creator>Guillemette, François</creator><creator>Kellerman, Anne M</creator><creator>Spencer, Robert G. 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M</au><au>Tarr, Matthew A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2019-07-16</date><risdate>2019</risdate><volume>53</volume><issue>14</issue><spage>8235</spage><epage>8243</epage><pages>8235-8243</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><abstract>To examine the molecular-level composition and acute toxicity per unit carbon of the petroleum-derived dissolved organic matter (DOMHC) produced via photo-oxidation, heavy and light oils were irradiated over seawater with simulated sunlight. Increases in dissolved organic carbon concentrations as a function of time were associated with changes in the DOMHC composition and acute toxicity per unit carbon. Parallel factor analysis showed that the fluorescent dissolved organic matter (FDOM) composition produced from the heavy oil became more blue-shifted over time, while the light oil produced a mixture of blue- and red-shifted components similar to FDOM signatures. Ultrahigh-resolution mass spectrometry reveals that the composition of the DOMHC produced from both heavy and light oils was initially relatively reduced, with low O/C. With time, the composition of the DOMHC produced from the heavy oil shifted to unsaturated, high-oxygen compounds, while that produced from the light oil comprised a range of high O/C aliphatic, unsaturated, and aromatic compounds. 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| source | MEDLINE; American Chemical Society Journals |
| subjects | Acute toxicity Aliphatic compounds Aromatic compounds Carbon Chemical analysis Composition Dissolved organic carbon Dissolved organic matter Factor analysis Fluorescence Inhibition Mass spectrometry Mass spectroscopy Microtox Oil Organic Chemicals Oxidation Oxygen compounds Petroleum Photooxidation Seawater Toxicity Water analysis Water Pollutants, Chemical |
| title | Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon |
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