Atrazine — a herbicide often used on corn fields, golf courses and even lawns — has become one of the most common contaminants in American drinking water.
For years, the E.P.A. has decided against acting on calls to ban the chemical from environmental activists and some scientists who argued that runoff was polluting ecosystems and harming animals.
Atrazine in drinking water has been associated with birth defects, low birth weight, and reproductive problems. The EPA will announce Wednesday whether new evaluations of links between atrazine and cancer are necessary, and whether restrictions should be modified. full article