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Supported California listing glyphosate as a carcinogen

July 2017

California officially added glyphosate, the key ingredient in Monsanto’s Roundup weedkiller, as a chemical known to cause cancer under the state’s Proposition 65 law. EWG applauded this measure, but urged the state to further regulate the chemical. In the weeks leading to this decision EWG analyzed the chemical and its legal limit.


Key Issues, Toxics, Health Concerns: