🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPortuguêsTürkçeالعربية中文EntityQ1149618· pop 8· linked from 8 articlestoxic equivalency factorAlso known as TEF, toxic equivalentfactorAvailable in 8 languagesFrançaisPortuguêsItalianoالعربيةFinnishHausaNederlandsvia Wikidata sitelinks · CC0Connectionspolychlorinated biphenylEntityWorld Health OrganizationEntityCategoriesConcentration indicatorsEnvironmental toxicologyEquivalent units