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The Office of Environmental Health Hazard Assessment (OEHHA) is providing notice of a modification to the proposed Proposition 65 No Significant Risk Level (NSRL) for Antimony Trioxide.

The Office of Environmental Health Hazard Assessment (OEHHA) has adopted an NSRL of 3.7 micrograms per day for exposures to 1,3-dichloropropene by the oral and inhalation routes.

At the request of the Dow Chemical Company, OEHHA hereby extends the request for information on 1,3-dichloropropene that will inform OEHHA’s development of a safe harbor level for this chemical. The request for information will now close on Wednesday, May 26, 2021. 

The oral and inhalation MADLs established by this amendment are both 0.58 micrograms per day, and the dermal MADL is 7.2 micrograms per day for chlorpyrifos.

Office of Environmental Health Hazard Assessment (OEHHA) proposes to establish three Proposition 65[1] Maximum Allowable Dose Levels (MADLs) for exposure to chlorpyrifos by amending Section 25805(b) of Title 27 of the California Code of Regulations.

This amendment establishes an oral MADL of 28,000 micrograms per day and an inhalation MADL of 20,000 micrograms per day for n-hexane.  

The regulation will be effective on April 1, 2019.  This regulation establishes a No Significant Risk Level of 0.70 micrograms per day for bromochloroacetic acid for purposes of Proposition 65.

This regulation establishes a MADL of 290 micrograms per day for metham sodium.  

The regulation will be effective on July 1, 2018.  This regulation establishes a No Significant Risk Level of 0.88 micrograms per day for vinylidene chloride for purposes of Proposition 65.

OEHHA has adopted a No Significant Risk Level (NSRL) of 180 micrograms per day for Malathion.