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With scientific development, social science studies are expected to contribute to developing more effective communication on microplastics. Among various media, this article focused on Wikipedia and discussed one particular situation\u2014when the language of Wikipedia differs from the language of mainstream information sources. Inspired by actor network theory, we analyzed the revision history of the Japanese Wikipedia article on microplastics from 2014 to 2020 and elucidated how knowledge of microplastics was textually constructed. We found editors\u2019 reluctance to disprove and update the latest scientific knowledge in edit actions, as well as problems and flaws existing in the created knowledge that shows limited enforcement of Wikipedia policies. Based on the findings, we urge more attention to improving the public knowledge of fast-developing science, especially when the knowledge construction might encounter a cross-language context.<\/jats:p>","DOI":"10.1177\/14614448221149747","type":"journal-article","created":{"date-parts":[[2023,1,23]],"date-time":"2023-01-23T02:15:52Z","timestamp":1674440152000},"page":"6159-6180","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Introducing an \u201cinvisible enemy\u201d: A case study of knowledge construction regarding microplastics in Japanese Wikipedia"],"prefix":"10.1177","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4734-1035","authenticated-orcid":false,"given":"Mengyuan","family":"Fu","sequence":"first","affiliation":[{"name":"The University of Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kunhao","family":"Yang","sequence":"additional","affiliation":[{"name":"Chuo Gakuin University, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuko","family":"Fujigaki","sequence":"additional","affiliation":[{"name":"The University of Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,1,22]]},"reference":[{"key":"e_1_3_4_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41561-019-0335-5"},{"key":"e_1_3_4_3_1","volume-title":"Proceedings of the International Research Workshop on the Occurrence, Effects, and Fate of Microplastic Marine Debris","author":"Arthur C","year":"2009","unstructured":"Arthur C, Baker JE, Bamford HA (2009) Proceedings of the International Research Workshop on the Occurrence, Effects, and Fate of Microplastic Marine Debris. 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