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Term Definition Article Siehe auch
water pollution class: (German abbreviation: WGK). According to the German "Catalog of water polluting substances" a number between 1 and 3 - that corresponds to the relative hazard of a chemical for aquatic life. (1 means - weakly hazardous, 3 means strongly hazardous). Substances which pose no threat to the aquatic environment are classified as "n.w.g." - which means "not water polluting".
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pages/glossary.php: November 09, 2022