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However, in our current understanding, there are missing sources associated with these two species. Here we investigate the effect of copper(II) on CH\n                    <jats:sub>3<\/jats:sub>\n                    Br and CH\n                    <jats:sub>3<\/jats:sub>\n                    Cl production from soil, seawater and model organic compounds: catechol (benzene-1,2-diol) and guaiacol (2-methoxyphenol). We show that copper sulfate (CuSO\n                    <jats:sub>4<\/jats:sub>\n                    ) enhances CH\n                    <jats:sub>3<\/jats:sub>\n                    Br and CH\n                    <jats:sub>3<\/jats:sub>\n                    Cl production from soil and seawater, and it may be further amplified in conjunction with hydrogen peroxide (H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    ) or solar radiation. This represents an abiotic production pathway of CH\n                    <jats:sub>3<\/jats:sub>\n                    Br and CH\n                    <jats:sub>3<\/jats:sub>\n                    Cl perturbed by anthropogenic application of copper(II)-based chemicals. Hence, we suggest that the widespread application of copper(II) pesticides in agriculture and the discharge of anthropogenic copper(II) to the oceans may account for part of the missing sources of CH\n                    <jats:sub>3<\/jats:sub>\n                    Br and CH\n                    <jats:sub>3<\/jats:sub>\n                    Cl, and thereby contribute to stratospheric halogen load.\n                  <\/jats:p>","DOI":"10.1038\/s41467-021-27779-3","type":"journal-article","created":{"date-parts":[[2022,1,10]],"date-time":"2022-01-10T06:03:42Z","timestamp":1641794622000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Application of copper(II)-based chemicals induces CH3Br and CH3Cl emissions from soil and seawater"],"prefix":"10.1038","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5027-3144","authenticated-orcid":false,"given":"Yi","family":"Jiao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9874-9834","authenticated-orcid":false,"given":"Wanying","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jae Yun Robin","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Malte Julian","family":"Deventer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7409-2898","authenticated-orcid":false,"given":"Julien","family":"Vollering","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6358-2050","authenticated-orcid":false,"given":"Robert C.","family":"Rhew","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,1,10]]},"reference":[{"key":"27779_CR1","unstructured":"Carpenter, L. 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