carcinogenic

Recent sampling of drinking water in the Tule area has shown significant numbers of wells with contaminants such as arsenic, nitrate and the carcinogenic chemical 1,2,3-Trichloropropane at levels exceeding safe thresholds.

Prosecutors said the way the company mismanaged the waste led to harmful levels of carcinogenic chemicals, lead, arsenic and mercury being released into the air, soil and water.

The US's Environmental Protection Agency says the chemical is carcinogenic to humans.

Though some studies associate Roundup’s key ingredient with cancer, the EPA has regularly concluded it is not likely to be carcinogenic to humans.

Naphthalene and benzene, which the International Agency for Research on Cancer classifies as carcinogenic to humans, was found there six years ago.