GLRPPR Sector Resource: Guidance for Implementing the January 2001 Methylmercury Water Quality Criterion
Guidance for Implementing the January 2001 Methylmercury Water Quality Criterion
In January 2001, EPA published ambient water quality criteria (AWQC) recommendations for methylmercury for the protection of people who eat fish and shellfish. This criterion, 0.3 mg methylmercury/kg fish tissue wet weight, marks EPA's first issuance of a water quality criterion expressed as a fish and shellfish tissue value rather than as an ambient water column value. This document provides technical guidance to states and authorized tribes exercising responsibility under section CWA 303(c) on how to use the new fish tissue-based criterion recommendation as they develop their own water quality standards for methylmercury.
U.S. EPA Office of Water
Date of Publication:
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