"An EPA document shows that a new Chevron fuel ingredient has a lifetime cancer risk more than 1 million times higher than what the agency usually finds acceptable — even greater than another Chevron fuel’s sky-high risk disclosed earlier this year."

"The Environmental Protection Agency approved a component of boat fuel made from discarded plastic that the agency’s own risk formula determined was so hazardous, everyone exposed to the substance continually over a lifetime would be expected to develop cancer. Current and former EPA scientists said that threat level is unheard of. It is a million times higher than what the agency usually considers acceptable for new chemicals and six times worse than the risk of lung cancer from a lifetime of smoking.

Federal law requires the EPA to conduct safety reviews before allowing new chemical products onto the market. If the agency finds that a substance causes unreasonable risk to health or the environment, the EPA is not allowed to approve it without first finding ways to reduce that risk.

ProPublica and the Guardian in February reported on the risks of other new plastic-based Chevron fuels that were also approved under an EPA program that the agency had touted as a “climate-friendly” way to boost alternatives to petroleum-based fuels. That story was based on an EPA consent order, a legally binding document the agency issues to address risks to health or the environment. In the Chevron consent order, the highest noted risk came from a jet fuel that was expected to create air pollution so toxic that 1 out of 4 people exposed to it over a lifetime could get cancer."

Sharon Lerner reports for ProPublica/Guardian August 4, 2023. [2]