MTBE and Ethanol

OEHHA developed health values for the inhalation pathway for the Toxic Air Contaminant (TAC), methyl tertiary-butyl ether (MTBE).

OEHHA released its final report on the potential public health impacts of ethanol as an oxygenate in gasoline.  It includes an analysis of the health risks of ethanol in gasoline, the products of incomplete combustion of ethanol in gasoline, and any resulting secondary transformation products.

OEHHA released a draft report on their analysis of the potential public health impacts of ethanol as an oxygenate in gasoline.

The CalTrans Risk Asssessment Implementation Plan 1996 was  in response to Executive Order W-137-96 requiring the implementation of recommendations made by the Risk Assessment Advisory Committee (Committee) to improve the risk assessment process in all California state agencies, departments, boards and offices. The study included a detailed review of the Committee recommendations, selection of recommendations that apply to Caltrans’ programs, review of the current status of those programs in context with the recommendations and an implementation plan to make any needed improvements to the current Caltrans policies and procedures.

OEHHA developed a cancer unit risk factor for the Toxic Air Contaminant, methyl tertiary-butyl ether (MTBE).  OEHHA released a draft document of their analysis, and announced the public comment period.