Assessment of phthalic acid esters plasticizers in sediments of coastal Alabama, USA: Occurrence, source, and ecological risk
Considering the ubiquitous occurrences and ecotoxicity of phthalates (PAEs), it is essential to understand their sources, distribution, and associated ecological risks of PAEs in sediments to assess the environmental health of estuaries and support effective management practices. This study provides...
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Veröffentlicht in: | The Science of the total environment 2023-11, Vol.897, p.165345-165345, Article 165345 |
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description | Considering the ubiquitous occurrences and ecotoxicity of phthalates (PAEs), it is essential to understand their sources, distribution, and associated ecological risks of PAEs in sediments to assess the environmental health of estuaries and support effective management practices. This study provides the first comprehensive dataset on the occurrence, spatial variation, inventory, and potential ecological risk assessment of PAEs in surface sediments of commercially and ecologically significant estuaries in the southeastern United States, Mobile Bay and adjoining eastern Mississippi Sound. Fifteen PAEs were widely detected in the sediments of the study region, with total concentrations varying between 0.02 and 3.37 μg/g. The dominance of low-molecular-weight (LMW) PAEs (DEP, DBP and DiBP) relative to high-molecular-weight (HMW) PAEs (DEHP, DOP, DNP) indicates that residential activities have stronger impacts than industrial activities on PAE distributions. The total PAE concentrations displayed an overall decreasing trend with increasing bottom water salinity, with the maximum concentrations occurring near river mouths. These observations suggest that river inputs were an important pathway by which PAEs were transported to the estuary. Linear regression models identified sediment adsorption (measured by total organic carbon and median grain size) and riverine inputs (measured by bottom water salinity) as significant predictors for the concentrations of LMW and HMW PAEs. Estimated 5-year total inventories of sedimentary PAEs in Mobile Bay and the eastern Mississippi Sound were 13.82 tons and 1.16 tons, respectively. Risk assessment calculations suggest that LMW PAEs posed a medium-to-high risk to sensitive aquatic organisms, and DEHP posed a low or negligible risk to the aquatic organisms. The results of this study provide important information needed for establishing and implementing effective practices for monitoring and regulating plasticizer pollutants in estuaries.
[Display omitted]
•Fifteen phthalates (PAEs) were analyzed in surface sediments in Mobile Bay and eastern Mississippi Sound.•Low-molecular-weight PAEs were predominant, reflecting stronger residential activity impacts.•PAEs concentrations were higher in northern, upper Mobile Bay; maximum values near river mouth.•The distribution of PAEs was affected by sediment absorption and riverine runoffs.•DiBP posed a high potential ecological risk and DEP and DBP posed a medium risk. |
doi_str_mv | 10.1016/j.scitotenv.2023.165345 |
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[Display omitted]
•Fifteen phthalates (PAEs) were analyzed in surface sediments in Mobile Bay and eastern Mississippi Sound.•Low-molecular-weight PAEs were predominant, reflecting stronger residential activity impacts.•PAEs concentrations were higher in northern, upper Mobile Bay; maximum values near river mouth.•The distribution of PAEs was affected by sediment absorption and riverine runoffs.•DiBP posed a high potential ecological risk and DEP and DBP posed a medium risk.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2023.165345</identifier><identifier>PMID: 37414190</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Ecological risk ; Gulf of Mexico ; Mobile Bay ; Phthalates ; Plasticizer ; Sediment</subject><ispartof>The Science of the total environment, 2023-11, Vol.897, p.165345-165345, Article 165345</ispartof><rights>2023 Elsevier B.V.</rights><rights>Copyright © 2023. Published by Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-aced7eb6c5d4f1de4488d2f5dd04f99c09a4133dc23fda1262fccae1ee987b1f3</citedby><cites>FETCH-LOGICAL-c371t-aced7eb6c5d4f1de4488d2f5dd04f99c09a4133dc23fda1262fccae1ee987b1f3</cites><orcidid>0000-0002-0536-532X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.scitotenv.2023.165345$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37414190$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lu, Man</creatorcontrib><creatorcontrib>Jones, Stephen</creatorcontrib><creatorcontrib>McKinney, Mac</creatorcontrib><creatorcontrib>Kandow, Alyssa</creatorcontrib><creatorcontrib>Donahoe, Rona</creatorcontrib><creatorcontrib>Cobb Faulk, Bethany</creatorcontrib><creatorcontrib>Chen, Shuo</creatorcontrib><creatorcontrib>Lu, YueHan</creatorcontrib><title>Assessment of phthalic acid esters plasticizers in sediments of coastal Alabama, USA: Occurrence, source, and ecological risk</title><title>The Science of the total environment</title><addtitle>Sci Total Environ</addtitle><description>Considering the ubiquitous occurrences and ecotoxicity of phthalates (PAEs), it is essential to understand their sources, distribution, and associated ecological risks of PAEs in sediments to assess the environmental health of estuaries and support effective management practices. This study provides the first comprehensive dataset on the occurrence, spatial variation, inventory, and potential ecological risk assessment of PAEs in surface sediments of commercially and ecologically significant estuaries in the southeastern United States, Mobile Bay and adjoining eastern Mississippi Sound. Fifteen PAEs were widely detected in the sediments of the study region, with total concentrations varying between 0.02 and 3.37 μg/g. The dominance of low-molecular-weight (LMW) PAEs (DEP, DBP and DiBP) relative to high-molecular-weight (HMW) PAEs (DEHP, DOP, DNP) indicates that residential activities have stronger impacts than industrial activities on PAE distributions. The total PAE concentrations displayed an overall decreasing trend with increasing bottom water salinity, with the maximum concentrations occurring near river mouths. These observations suggest that river inputs were an important pathway by which PAEs were transported to the estuary. Linear regression models identified sediment adsorption (measured by total organic carbon and median grain size) and riverine inputs (measured by bottom water salinity) as significant predictors for the concentrations of LMW and HMW PAEs. Estimated 5-year total inventories of sedimentary PAEs in Mobile Bay and the eastern Mississippi Sound were 13.82 tons and 1.16 tons, respectively. Risk assessment calculations suggest that LMW PAEs posed a medium-to-high risk to sensitive aquatic organisms, and DEHP posed a low or negligible risk to the aquatic organisms. The results of this study provide important information needed for establishing and implementing effective practices for monitoring and regulating plasticizer pollutants in estuaries.
[Display omitted]
•Fifteen phthalates (PAEs) were analyzed in surface sediments in Mobile Bay and eastern Mississippi Sound.•Low-molecular-weight PAEs were predominant, reflecting stronger residential activity impacts.•PAEs concentrations were higher in northern, upper Mobile Bay; maximum values near river mouth.•The distribution of PAEs was affected by sediment absorption and riverine runoffs.•DiBP posed a high potential ecological risk and DEP and DBP posed a medium risk.</description><subject>Ecological risk</subject><subject>Gulf of Mexico</subject><subject>Mobile Bay</subject><subject>Phthalates</subject><subject>Plasticizer</subject><subject>Sediment</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqFkEFv1DAQhS0EotvCXwAfOTRbO3bihFtU0RapUg_Qs-Udj6mXJF48SSWQ-t9JtKVX5jIazXtvNB9jH6XYSiHri_2WIE5pwvFxW4pSbWVdKV29YhvZmLaQoqxfs40QuinaujUn7JRoL5YyjXzLTpTRUstWbNhTR4REA44TT4EfHqYH10fgDqLnSBNm4ofe0RQh_lmHOHJCH1cDrQ5Iy9L1vOvdzg3unN9_6z7zO4A5ZxwBzzmlOa_djUsipD79iLAYcqSf79ib4HrC98_9jN1fffl-eVPc3l1_vexuC1BGToUD9AZ3NVReB-lR66bxZai8Fzq0LYjWaamUh1IF72RZlwHAoURsG7OTQZ2xT8fcQ06_5uUtO0QC7Hs3YprJlo2qSlNpIxepOUohJ6KMwR5yHFz-baWwK3u7ty_s7creHtkvzg_PR-bdgP7F9w_2IuiOAlxefYyY16CVkY8ZYbI-xf8e-QuItJyh</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Lu, Man</creator><creator>Jones, Stephen</creator><creator>McKinney, Mac</creator><creator>Kandow, Alyssa</creator><creator>Donahoe, Rona</creator><creator>Cobb Faulk, Bethany</creator><creator>Chen, Shuo</creator><creator>Lu, YueHan</creator><general>Elsevier B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-0536-532X</orcidid></search><sort><creationdate>20231101</creationdate><title>Assessment of phthalic acid esters plasticizers in sediments of coastal Alabama, USA: Occurrence, source, and ecological risk</title><author>Lu, Man ; Jones, Stephen ; McKinney, Mac ; Kandow, Alyssa ; Donahoe, Rona ; Cobb Faulk, Bethany ; Chen, Shuo ; Lu, YueHan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-aced7eb6c5d4f1de4488d2f5dd04f99c09a4133dc23fda1262fccae1ee987b1f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Ecological risk</topic><topic>Gulf of Mexico</topic><topic>Mobile Bay</topic><topic>Phthalates</topic><topic>Plasticizer</topic><topic>Sediment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lu, Man</creatorcontrib><creatorcontrib>Jones, Stephen</creatorcontrib><creatorcontrib>McKinney, Mac</creatorcontrib><creatorcontrib>Kandow, Alyssa</creatorcontrib><creatorcontrib>Donahoe, Rona</creatorcontrib><creatorcontrib>Cobb Faulk, Bethany</creatorcontrib><creatorcontrib>Chen, Shuo</creatorcontrib><creatorcontrib>Lu, YueHan</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lu, Man</au><au>Jones, Stephen</au><au>McKinney, Mac</au><au>Kandow, Alyssa</au><au>Donahoe, Rona</au><au>Cobb Faulk, Bethany</au><au>Chen, Shuo</au><au>Lu, YueHan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Assessment of phthalic acid esters plasticizers in sediments of coastal Alabama, USA: Occurrence, source, and ecological risk</atitle><jtitle>The Science of the total environment</jtitle><addtitle>Sci Total Environ</addtitle><date>2023-11-01</date><risdate>2023</risdate><volume>897</volume><spage>165345</spage><epage>165345</epage><pages>165345-165345</pages><artnum>165345</artnum><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract>Considering the ubiquitous occurrences and ecotoxicity of phthalates (PAEs), it is essential to understand their sources, distribution, and associated ecological risks of PAEs in sediments to assess the environmental health of estuaries and support effective management practices. This study provides the first comprehensive dataset on the occurrence, spatial variation, inventory, and potential ecological risk assessment of PAEs in surface sediments of commercially and ecologically significant estuaries in the southeastern United States, Mobile Bay and adjoining eastern Mississippi Sound. Fifteen PAEs were widely detected in the sediments of the study region, with total concentrations varying between 0.02 and 3.37 μg/g. The dominance of low-molecular-weight (LMW) PAEs (DEP, DBP and DiBP) relative to high-molecular-weight (HMW) PAEs (DEHP, DOP, DNP) indicates that residential activities have stronger impacts than industrial activities on PAE distributions. The total PAE concentrations displayed an overall decreasing trend with increasing bottom water salinity, with the maximum concentrations occurring near river mouths. These observations suggest that river inputs were an important pathway by which PAEs were transported to the estuary. Linear regression models identified sediment adsorption (measured by total organic carbon and median grain size) and riverine inputs (measured by bottom water salinity) as significant predictors for the concentrations of LMW and HMW PAEs. Estimated 5-year total inventories of sedimentary PAEs in Mobile Bay and the eastern Mississippi Sound were 13.82 tons and 1.16 tons, respectively. Risk assessment calculations suggest that LMW PAEs posed a medium-to-high risk to sensitive aquatic organisms, and DEHP posed a low or negligible risk to the aquatic organisms. The results of this study provide important information needed for establishing and implementing effective practices for monitoring and regulating plasticizer pollutants in estuaries.
[Display omitted]
•Fifteen phthalates (PAEs) were analyzed in surface sediments in Mobile Bay and eastern Mississippi Sound.•Low-molecular-weight PAEs were predominant, reflecting stronger residential activity impacts.•PAEs concentrations were higher in northern, upper Mobile Bay; maximum values near river mouth.•The distribution of PAEs was affected by sediment absorption and riverine runoffs.•DiBP posed a high potential ecological risk and DEP and DBP posed a medium risk.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>37414190</pmid><doi>10.1016/j.scitotenv.2023.165345</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-0536-532X</orcidid></addata></record> |
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source | ScienceDirect Journals (5 years ago - present) |
subjects | Ecological risk Gulf of Mexico Mobile Bay Phthalates Plasticizer Sediment |
title | Assessment of phthalic acid esters plasticizers in sediments of coastal Alabama, USA: Occurrence, source, and ecological risk |
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