A coalition of environmental and public health advocacy groups have petitioned California’s Office of Environmental Health Hazard Assessment (OEHHA) to add four commonly used pesticides to the Proposition 65 list of carcinogens.
Mateel Environmental Justice Foundation (Mateel), Californians for Alternatives to Toxics (CATs), Ecological Rights Foundation (ERF) and Center for Environmental Health (CEH) petitioned the California Office of Environmental Health Hazard Assessment (OEHHA) to list glyphosate, malathion, tetrachlor-vinphos and parathion as Proposition 65 carcinogens.
The coalition cites assessments made by scientists that convened at the International Agency for Research on Cancer (IARC Lyon, France) to assess the carcinogenicity of the organo-phosphate pesticides glyphosate, tetrachlorovinphos, parathion, and malathion.
The assessment for glyphosate (the active ingredient in Round Up) was published in the online version of the IARC Monographs, volume 112 on July 29. Monographs for the remaining three chemicals will be published subsequently in Volume 112, IARC notes.
IARC is a Proposition 65 authoritative body for chemical and substances that are shown to cause cancer.
The petitioners assert that IARC has found there to be sufficient evidence that the four chemicals cause cancer in animals.
Attached to the petition is an article published in the British medical journal Lancet that the petitioners claim confirms that IARC has within the meaning of Health & Safety Code section 25249.8(b) – formally identified glyposate, tetrachlorovinphos, parathion and malathion as causing cancer.
The petition is one of several filed by environmental advocacy groups in the past few years to expedite the listing of hazardous chemicals.
The coalition’s petition was filed four months after IARC convened in March to report its determinations.
OEHHA has not yet responded to the petition.