2,3,7,8-TCDD
EPA MCLG
0 mg/L
EPA's health goal is zero — no known safe level of exposure. This is a goal, not an enforceable limit.
Health Effects
Reproductive difficulties; increased risk of cancer
Source: EPA — National Primary Drinking Water Regulations (retrieved 2026-07-27)
Common Sources
- Emissions from waste incineration and other combustion
- discharge from chemical factories
Is your 2,3,7,8-TCDD result safe? Get a free reading
The EPA MCLG for 2,3,7,8-TCDD is 0 mg/L. Upload your water test (PDF or a photo) and we'll email a plain-English reading of where your result lands — and every other number — free. Educational only, no medical claims.
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Water filters certified under the following NSF standards are effective at removing 2,3,7,8-TCDD:
Filter recommendations for this contaminant are being updated.
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About the EPA MCLG
The EPA MCLG is the level of a contaminant in drinking water below which there is no known or expected risk to health. It is a non-enforceable public health goal, and is often stricter than the legal limit (MCL) water systems must meet.
Contaminant Type
2,3,7,8-TCDD is classified as a Dioxins/Furans contaminant.
Check Your Water
Find out if 2,3,7,8-TCDD is in your tap water.
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