A French study warns about pesticide residue in drinking water.

In 2019, tests were instituted by the National Agency for Food, Environment, and Workplace Security (ANSES) to detect about 200 complex chemical compounds, such as those found in pesticides or explosives, that are not generally looked for in standard examinations. According to the agency, "one case in particular stood out": residues of chlorothalonil, a fungicide widely distributed in Europe by Swiss chemicals company Syngenta from t....