California’s Office of Environmental Health Hazard Assessment (OEHHA) has announced the “Amendment to Section 25705 No Significant Risk Level (NSRL) for Bromodichloroacetic Acid (BDCAA).” The change confirms that the NSRL for
is 0.95 micrograms per day.
Bromodichloroacetic acid is a water-disinfectant byproduct. It was listed as a carcinogen under Proposition 65 on July 29, 2016, based on a 2015 report published by the National Toxicology Program (NTP).
California’s Office of Environmental Health Hazard Assessment OEHHA has listed bromodichloroacetic acid (BDCAA) as a carcinogen based on its’ identification by The National Toxicology Program. The supporting documents used as the basis for the administrative listing of bromodichloroacetic acid was included in the agency’s “Notice of Intent to List Bromodichloroacetic Acid” published on its website as well as in the California Regulatory Notice Register in May 2016.
The notice also solicited public comments during the public comment period that ended on June 27, 2016. However, OEHHA did not receive any public comments about bromodichloroacetic acid.
Bromodichloroacetic acid is a byproduct of water treatment processes using chlorine and other halogenated oxidants, according to a 2016 NTP report.
Bromodichloroacetic acid and other water disinfection byproducts increase the possibility of cancer and may cause fetal growth and development problems during pregnancy.
California’s Proposition 65 requires manufacturers and retailers to provide clear and reasonable warnings to consumers and workers using or exposed to listed chemicals and substances.
The agency’s No Significant Risk Level (NSRL) provides a Safe Harbor level which exempts products containing chemicals or substances in concentrations below the Safe Harbor level from a Proposition 65 warning requirement.
The new Safe Harbor level for bromodichloroacetic acid. will take effect on April 1, 2019.