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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Environ. Sci.</journal-id>
<journal-title>Frontiers in Environmental Science</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Environ. Sci.</abbrev-journal-title>
<issn pub-type="epub">2296-665X</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">1124806</article-id>
<article-id pub-id-type="doi">10.3389/fenvs.2022.1124806</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Environmental Science</subject>
<subj-group>
<subject>Retraction</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Retraction: Treatment mechanism of hexavalent chromium wastewater in constructed wetland-microbial fuel cell coupling system</article-title>
<alt-title alt-title-type="left-running-head">Frontiers Editorial Office</alt-title>
<alt-title alt-title-type="right-running-head">
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fenvs.2022.1124806">10.3389/fenvs.2022.1124806</ext-link>
</alt-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Frontiers Editorial Office</surname>
</name>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
</contrib>
</contrib-group>
<author-notes>
<fn fn-type="edited-by">
<p>
<bold>Approved by:</bold> <ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/595355/overview">Oladele Ogunseitan</ext-link>, University of California, Irvine, United States</p>
</fn>
<corresp id="c001">&#x2a;Correspondence: Frontiers Editorial Office, <email>editorial.office@frontiersin.org</email>
</corresp>
<fn fn-type="other">
<p>This article was submitted to Toxicology, Pollution and the Environment, a section of the journal Frontiers in Environmental Science</p>
</fn>
</author-notes>
<pub-date pub-type="epub">
<day>23</day>
<month>01</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="collection">
<year>2022</year>
</pub-date>
<volume>10</volume>
<elocation-id>1124806</elocation-id>
<history>
<date date-type="received">
<day>15</day>
<month>12</month>
<year>2022</year>
</date>
<date date-type="accepted">
<day>28</day>
<month>12</month>
<year>2022</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#xa9; 2023 Frontiers Editorial Office.</copyright-statement>
<copyright-year>2023</copyright-year>
<copyright-holder>Frontiers Editorial Office</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p>
</license>
</permissions>
<related-article id="RA1" related-article-type="retracted-article" journal-id="Front. Environ. Sci." journal-id-type="nlm-ta" xlink:href="10.3389/fenvs.2022.937740" ext-link-type="doi">A Retraction of the Review Article <article-title>Treatment mechanism of hexavalent chromium wastewater in constructed wetland-microbial fuel cell coupling system</article-title> by Shi Y, Tang G, You S, Jiang P, Zhang X and Deng Z (2022). Front. Environ. Sci. 10:937740. doi: <object-id>10.3389/fenvs.2022.937740</object-id>
</related-article>
</article-meta>
</front>
<body>
<p>Following the publication of the above article the publisher received concerns regarding the reliability and completeness of the methodology and data presented in the article. An investigation was conducted in accordance with Frontiers&#x2019; policies and it was determined that the scientific validity of the article could not be rectified with a correction; therefore, the article has been retracted.</p>
<p>The authors agreed to this retraction.</p>
<p>This retraction was approved by the Chief Editors of Frontiers in Environmental Science and the Chief Executive Editor of Frontiers.</p>
</body>
</article>