Siddhartha Mitra, Christopher L. Osburn, Andrew S. Wozniak
{"title":"化石燃料和陆源对墨西哥湾北部夏季雨水有机质影响的初步评价","authors":"Siddhartha Mitra, Christopher L. Osburn, Andrew S. Wozniak","doi":"10.1007/s10498-017-9319-5","DOIUrl":null,"url":null,"abstract":"<p>We report here for the first time rainwater organic carbon (OC) concentration and composition collected from open waters over the Gulf of Mexico. Rainwater OC concentrations ranged from 3.7 to 17.3?mg?L<sup>?1</sup>. The δ<sup>13</sup>C of these rainwater samples ranged from ?26.7 to ?24.2‰ pointing toward terrestrial and/or fossil fuel OC sources (64–100%) combined with marine OC sources. Colored dissolved OM absorbance and EEM fluorescence spectra were indicative of secondary organic aerosol from terrestrial sources as well as aromatic fossil fuel compounds. Air mass back trajectory analyses along with these results indicate that rainwater OC in the Gulf of Mexico may be influenced by oil and gas infrastructure and emissions from known lanes of shipping traffic within the Gulf. These results also suggest that anthropogenic and biogenic emissions from the southeastern continental USA impact rainwater OC in the Gulf of Mexico.</p>","PeriodicalId":8102,"journal":{"name":"Aquatic Geochemistry","volume":"23 4","pages":"217 - 231"},"PeriodicalIF":1.7000,"publicationDate":"2017-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s10498-017-9319-5","citationCount":"7","resultStr":"{\"title\":\"A Preliminary Assessment of Fossil Fuel and Terrigenous Influences to Rainwater Organic Matter in Summertime in the Northern Gulf of Mexico\",\"authors\":\"Siddhartha Mitra, Christopher L. Osburn, Andrew S. Wozniak\",\"doi\":\"10.1007/s10498-017-9319-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>We report here for the first time rainwater organic carbon (OC) concentration and composition collected from open waters over the Gulf of Mexico. Rainwater OC concentrations ranged from 3.7 to 17.3?mg?L<sup>?1</sup>. The δ<sup>13</sup>C of these rainwater samples ranged from ?26.7 to ?24.2‰ pointing toward terrestrial and/or fossil fuel OC sources (64–100%) combined with marine OC sources. Colored dissolved OM absorbance and EEM fluorescence spectra were indicative of secondary organic aerosol from terrestrial sources as well as aromatic fossil fuel compounds. Air mass back trajectory analyses along with these results indicate that rainwater OC in the Gulf of Mexico may be influenced by oil and gas infrastructure and emissions from known lanes of shipping traffic within the Gulf. These results also suggest that anthropogenic and biogenic emissions from the southeastern continental USA impact rainwater OC in the Gulf of Mexico.</p>\",\"PeriodicalId\":8102,\"journal\":{\"name\":\"Aquatic Geochemistry\",\"volume\":\"23 4\",\"pages\":\"217 - 231\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2017-07-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1007/s10498-017-9319-5\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aquatic Geochemistry\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10498-017-9319-5\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Geochemistry","FirstCategoryId":"89","ListUrlMain":"https://link.springer.com/article/10.1007/s10498-017-9319-5","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
A Preliminary Assessment of Fossil Fuel and Terrigenous Influences to Rainwater Organic Matter in Summertime in the Northern Gulf of Mexico
We report here for the first time rainwater organic carbon (OC) concentration and composition collected from open waters over the Gulf of Mexico. Rainwater OC concentrations ranged from 3.7 to 17.3?mg?L?1. The δ13C of these rainwater samples ranged from ?26.7 to ?24.2‰ pointing toward terrestrial and/or fossil fuel OC sources (64–100%) combined with marine OC sources. Colored dissolved OM absorbance and EEM fluorescence spectra were indicative of secondary organic aerosol from terrestrial sources as well as aromatic fossil fuel compounds. Air mass back trajectory analyses along with these results indicate that rainwater OC in the Gulf of Mexico may be influenced by oil and gas infrastructure and emissions from known lanes of shipping traffic within the Gulf. These results also suggest that anthropogenic and biogenic emissions from the southeastern continental USA impact rainwater OC in the Gulf of Mexico.
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We publish original studies relating to the geochemistry of natural waters and their interactions with rocks and minerals under near Earth-surface conditions. Coverage includes theoretical, experimental, and modeling papers dealing with this subject area, as well as papers presenting observations of natural systems that stress major processes. The journal also presents `letter''-type papers for rapid publication and a limited number of review-type papers on topics of particularly broad interest or current major controversy.
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