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Perchlorate

Inorganics

Perchlorate

Perchlorate is an inorganic chemical that can occur naturally and as a contaminant primarily from industrial sources. It is not a food ingredient but a chemical contaminant and environmental pollutant known to disrupt thyroid function by inhibiting iodine uptake.

Tracked contaminantUpdated Aug 28, 2025
Health score-5.0
-5Very bad5

Water guidelines

Legal limit
0.006 ppm
Health guideline
0.001 ppm

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Disrupts thyroid hormone production, developmental neurotoxicity, hormonal imbalance, potential carcinogenicity

Benefits

None