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Endothall

Endothall is a synthetic herbicide primarily used to control aquatic plants and algae. It is not a food ingredient. Safety concerns focus on its toxicity through ingestion, skin contact, and environmental exposure. Classified as a potential human carcinogen by some agencies and known to cause gastrointestinal and kidney damage upon acute exposure.

Tracked contaminantUpdated Feb 21, 2026
Health score-4.0
-5Very bad5

Water guidelines

Legal limit
Not specified
Health guideline
Not specified

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Toxic if ingested, skin and eye irritation, potential carcinogen, environmental toxicity to aquatic life

Benefits

Effective aquatic weed control

References