🌐EnglishEnglishDeutschEspañolNederlandsTiếng ViệtEntityQ15187574· pop 8· linked from 10 articlesBlack Trianglethe nickname for one of Europe's most polluted areas, where Germany, Poland and the Czech Republic meetWikidata factsImageWismut location map.jpgvia Wikidata · CC0Available in 8 languagesEspañolDeutschCzechGreekNederlandsSlovenianTiếng Việtvia Wikidata sitelinks · CC0ConnectionsSan Francisco International Film FestivalEntityGermanEntityCategoriesAir pollution by regionBorder tripointsEnvironmentalism in GermanyEnvironment of PolandEnvironment of the Czech RepublicEurope articles missing geocoordinate dataGeography of LusatiaRegions of PolandRegions of SaxonyRegions of the Czech Republic