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The contents of the Selenium pollution page were merged into Selenium on 12 April 2020. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page.
Optical properties of selenium was nominated for deletion. The discussion was closed on 16 November 2017 with a consensus to merge. Its contents were merged into Selenium. The original page is now a redirect to this page. For the contribution history and old versions of the redirected article, please see its history; for its talk page, see here.
level-4 vital article is rated GA-class on Wikipedia's content assessment scale.
