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OEHHA establishes a MADL for sulfur dioxide of 10,000ug/day

Revision to the proposed MADL for sulfur dioxide from 220ug/day to 10,000 ug/day

OEHHA proposal to establish a Proposition 65 Maximum Allowable Dose Level (MADL) for sulfur dioxide (SO₂) of 220 micrograms per day

On June 1, 2012, the Office of Environmental Health Hazard Assessment (OEHHA) issued a notice of proposed rulemaking proposing an oral Maximum Allowable Dose Level (MADL) for the chemical butyl benzyl phthalate.

Proposal to adopt a Proposition 65 Maximum Allowable Dose Level (MADL) of 1,200 micrograms per day for oral exposures to butyl benzyl phthalate (BBP)

Adoption of the Maximum Allowable Dose Levels (MADLs) for oral exposure for the chemicals hydrogen cyanide and cyanide salts.

Proposal to adopt Proposition 65 Maximum Allowable Dose Levels (MADLs) for hydrogen cyanide (HCN) and cyanide salts (CN salts). The proposed oral MADL for HCN and CN salts, expressed in terms of cyanide, is 9.8 micrograms per day. For hydrogen cyanide and cyanide salts that dissociate to the cyanide ion, the MADLs are calculated by multiplying the molecular weight of the compound by 0.38.

Proposal to adopt Proposition 65 Maximum Allowable Dose Levels (MADLs) for oral exposure to atrazine, propazine, simazine, 2,3-diamino-6-chloro-s-triazine (DACT)*, des-ethyl atrazine (DEA), and des-isopropyl atrazine (DIA) that induce reproductive toxicity by amending Section 25805(b) of Title 27 of the California Code of Regulations.

In January 2013 OEHHA proposed to adopt a Proposition 651 Maximum Allowable Dose Level (MADL) of 290 micrograms per day for exposures to bisphenol A (BPA).

Center for Environmental Health petitioned the Office of Environmental Health Hazard Assessment to repeal and/or amend its Proposition 65 regulation with respect to exposures to lead.