Determinants of presence and removal of antibiotic resistance genes during WWTP treatment: A cross-sectional study
Wastewater treatment plants (WWTPs), linking human fecal residues and the environment, are considered as hotspots for the spread of antimicrobial resistance (AMR). In order to evaluate the role of WWTPs and underlying operational parameters for the removal of AMR, the presence and removal efficiency...
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Veröffentlicht in: | Water research (Oxford) 2019-09, Vol.161, p.319-328 |
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creator | Pallares-Vega, Rebeca Blaak, Hetty van der Plaats, Rozemarijn de Roda Husman, Ana M. Hernandez Leal, Lucia van Loosdrecht, Mark C.M. Weissbrodt, David G. Schmitt, Heike |
description | Wastewater treatment plants (WWTPs), linking human fecal residues and the environment, are considered as hotspots for the spread of antimicrobial resistance (AMR). In order to evaluate the role of WWTPs and underlying operational parameters for the removal of AMR, the presence and removal efficiency of a selected set of 6 antimicrobial resistance genes (ARGs) and 2 mobile genetic elements (MGEs) was evaluated by means of qPCR in influent and effluent samples from 62 Dutch WWTPs. The role of possible factors impacting the concentrations of ARGs and MGEs in the influent and their removal was identified through statistical analysis. ARGs and the class I integron-integrase gene (intI1) were, on average, removed to a similar extent (1.76 log reduction) or better (+0.30–1.90 logs) than the total bacteria (measured as 16S rRNA gene). In contrast, broad-host-range plasmids (IncP-1) had a significantly increased (p |
doi_str_mv | 10.1016/j.watres.2019.05.100 |
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•Sulfonamide (sul1) and macrolide (ermB) ARGs are predominant ARGs in the influent.•Healthcare institutions in the catchment didn't increase the influent's ARGs loads.•WWTP treatment reduced ARGs by 1.8–2.7 logs.•Relative abundance of IncP-1 plasmids was increased (p < 0.001) after WWTP treatment.•Rainfall increasing the WWTP hydraulic load significantly reduced the removal of ARGs.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2019.05.100</identifier><identifier>PMID: 31203037</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>ARGs ; IncP plasmids ; MGE ; Process design ; Rainfall ; Removal efficiency ; WWTPs</subject><ispartof>Water research (Oxford), 2019-09, Vol.161, p.319-328</ispartof><rights>2019 The Authors</rights><rights>Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c474t-2228fd738b40c5a7c6526ef9a48c725e80242813df7dd6c8a778d84e745cbaa33</citedby><cites>FETCH-LOGICAL-c474t-2228fd738b40c5a7c6526ef9a48c725e80242813df7dd6c8a778d84e745cbaa33</cites><orcidid>0000-0003-0907-982X ; 0000-0002-0139-1934</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.watres.2019.05.100$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31203037$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pallares-Vega, Rebeca</creatorcontrib><creatorcontrib>Blaak, Hetty</creatorcontrib><creatorcontrib>van der Plaats, Rozemarijn</creatorcontrib><creatorcontrib>de Roda Husman, Ana M.</creatorcontrib><creatorcontrib>Hernandez Leal, Lucia</creatorcontrib><creatorcontrib>van Loosdrecht, Mark C.M.</creatorcontrib><creatorcontrib>Weissbrodt, David G.</creatorcontrib><creatorcontrib>Schmitt, Heike</creatorcontrib><title>Determinants of presence and removal of antibiotic resistance genes during WWTP treatment: A cross-sectional study</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>Wastewater treatment plants (WWTPs), linking human fecal residues and the environment, are considered as hotspots for the spread of antimicrobial resistance (AMR). In order to evaluate the role of WWTPs and underlying operational parameters for the removal of AMR, the presence and removal efficiency of a selected set of 6 antimicrobial resistance genes (ARGs) and 2 mobile genetic elements (MGEs) was evaluated by means of qPCR in influent and effluent samples from 62 Dutch WWTPs. The role of possible factors impacting the concentrations of ARGs and MGEs in the influent and their removal was identified through statistical analysis. ARGs and the class I integron-integrase gene (intI1) were, on average, removed to a similar extent (1.76 log reduction) or better (+0.30–1.90 logs) than the total bacteria (measured as 16S rRNA gene). In contrast, broad-host-range plasmids (IncP-1) had a significantly increased (p < 0.001) relative abundance after treatment. The presence of healthcare institutions in the area served did only slightly increase the concentrations of ARGs or MGEs in influent. From the extended panel of operational parameters, rainfall, increasing the hydraulic load of the plant, most significantly (p < 0.05) affected the treatment efficiency by decreasing it on average −0.38 logs per time the flow exceeded the average daily flow. Our results suggest that overall, WWTP treatments do not favor the proliferation of the assessed resistance genes but might increase the relative abundance of broad-host-range plasmids of the IncP-1 type.
[Display omitted]
•Sulfonamide (sul1) and macrolide (ermB) ARGs are predominant ARGs in the influent.•Healthcare institutions in the catchment didn't increase the influent's ARGs loads.•WWTP treatment reduced ARGs by 1.8–2.7 logs.•Relative abundance of IncP-1 plasmids was increased (p < 0.001) after WWTP treatment.•Rainfall increasing the WWTP hydraulic load significantly reduced the removal of ARGs.</description><subject>ARGs</subject><subject>IncP plasmids</subject><subject>MGE</subject><subject>Process design</subject><subject>Rainfall</subject><subject>Removal efficiency</subject><subject>WWTPs</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kEtPHDEQhK0IFDaQfxAhH7nMpv2YtZcDEuKRREJKDiCOltfuQV7teBbbA-Lf42GBY06WylXV3R8hPxjMGbDFz_X82ZaEec6BLefQVhW-kBnTatlwKfUemQFI0TDRygPyLec1AHAull_JgWAcBAg1I-kSC6Y-RBtLpkNHt7USo0Nqo6cJ--HJbia9_odVGEpwVc0hFzuZHjBipn5MIT7Q-_vbf7SuZEuPsZzSc-rSkHOT0ZUwxNqTy-hfjsh-ZzcZv7-_h-Tu-ur24ndz8_fXn4vzm8ZJJUvDOdedV0KvJLjWKrdo-QK7pZXaKd6iBi65ZsJ3yvuF01Yp7bVEJVu3slaIQ3Ky692m4XHEXEwfssPNxkYcxmx4zTMmJZuscmd9WzhhZ7Yp9Da9GAZmom3WZkfbTLQNtFWFGjt-nzCuevSfoQ-81XC2M2C98ylgMtmFia4PqUIxfgj_n_AKOfiUCg</recordid><startdate>20190915</startdate><enddate>20190915</enddate><creator>Pallares-Vega, Rebeca</creator><creator>Blaak, Hetty</creator><creator>van der Plaats, Rozemarijn</creator><creator>de Roda Husman, Ana M.</creator><creator>Hernandez Leal, Lucia</creator><creator>van Loosdrecht, Mark C.M.</creator><creator>Weissbrodt, David G.</creator><creator>Schmitt, Heike</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-0907-982X</orcidid><orcidid>https://orcid.org/0000-0002-0139-1934</orcidid></search><sort><creationdate>20190915</creationdate><title>Determinants of presence and removal of antibiotic resistance genes during WWTP treatment: A cross-sectional study</title><author>Pallares-Vega, Rebeca ; Blaak, Hetty ; van der Plaats, Rozemarijn ; de Roda Husman, Ana M. ; Hernandez Leal, Lucia ; van Loosdrecht, Mark C.M. ; Weissbrodt, David G. ; Schmitt, Heike</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c474t-2228fd738b40c5a7c6526ef9a48c725e80242813df7dd6c8a778d84e745cbaa33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>ARGs</topic><topic>IncP plasmids</topic><topic>MGE</topic><topic>Process design</topic><topic>Rainfall</topic><topic>Removal efficiency</topic><topic>WWTPs</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pallares-Vega, Rebeca</creatorcontrib><creatorcontrib>Blaak, Hetty</creatorcontrib><creatorcontrib>van der Plaats, Rozemarijn</creatorcontrib><creatorcontrib>de Roda Husman, Ana M.</creatorcontrib><creatorcontrib>Hernandez Leal, Lucia</creatorcontrib><creatorcontrib>van Loosdrecht, Mark C.M.</creatorcontrib><creatorcontrib>Weissbrodt, David G.</creatorcontrib><creatorcontrib>Schmitt, Heike</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pallares-Vega, Rebeca</au><au>Blaak, Hetty</au><au>van der Plaats, Rozemarijn</au><au>de Roda Husman, Ana M.</au><au>Hernandez Leal, Lucia</au><au>van Loosdrecht, Mark C.M.</au><au>Weissbrodt, David G.</au><au>Schmitt, Heike</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determinants of presence and removal of antibiotic resistance genes during WWTP treatment: A cross-sectional study</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2019-09-15</date><risdate>2019</risdate><volume>161</volume><spage>319</spage><epage>328</epage><pages>319-328</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><abstract>Wastewater treatment plants (WWTPs), linking human fecal residues and the environment, are considered as hotspots for the spread of antimicrobial resistance (AMR). In order to evaluate the role of WWTPs and underlying operational parameters for the removal of AMR, the presence and removal efficiency of a selected set of 6 antimicrobial resistance genes (ARGs) and 2 mobile genetic elements (MGEs) was evaluated by means of qPCR in influent and effluent samples from 62 Dutch WWTPs. The role of possible factors impacting the concentrations of ARGs and MGEs in the influent and their removal was identified through statistical analysis. ARGs and the class I integron-integrase gene (intI1) were, on average, removed to a similar extent (1.76 log reduction) or better (+0.30–1.90 logs) than the total bacteria (measured as 16S rRNA gene). In contrast, broad-host-range plasmids (IncP-1) had a significantly increased (p < 0.001) relative abundance after treatment. The presence of healthcare institutions in the area served did only slightly increase the concentrations of ARGs or MGEs in influent. From the extended panel of operational parameters, rainfall, increasing the hydraulic load of the plant, most significantly (p < 0.05) affected the treatment efficiency by decreasing it on average −0.38 logs per time the flow exceeded the average daily flow. Our results suggest that overall, WWTP treatments do not favor the proliferation of the assessed resistance genes but might increase the relative abundance of broad-host-range plasmids of the IncP-1 type.
[Display omitted]
•Sulfonamide (sul1) and macrolide (ermB) ARGs are predominant ARGs in the influent.•Healthcare institutions in the catchment didn't increase the influent's ARGs loads.•WWTP treatment reduced ARGs by 1.8–2.7 logs.•Relative abundance of IncP-1 plasmids was increased (p < 0.001) after WWTP treatment.•Rainfall increasing the WWTP hydraulic load significantly reduced the removal of ARGs.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>31203037</pmid><doi>10.1016/j.watres.2019.05.100</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-0907-982X</orcidid><orcidid>https://orcid.org/0000-0002-0139-1934</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | ARGs IncP plasmids MGE Process design Rainfall Removal efficiency WWTPs |
title | Determinants of presence and removal of antibiotic resistance genes during WWTP treatment: A cross-sectional study |
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