BASAVILBASO, Argentina (AP) — Argentine farmworker Fabian Tomasi was never trained to handle pesticides. His job was to keep the crop-dusters flying by filling their tanks as quickly as possible, although it often meant getting drenched in poison.

Now, at 47, he’s a living skeleton, so weak he can hardly swallow or go to the bathroom on his own.

Schoolteacher Andrea Druetta lives in Santa Fe Province, the heart of Argentina’s soy country, where agrochemical spraying is banned within 500 meters (550 yards) of populated areas. But soy is planted just 30 meters (33 yards) from her back door. Her boys were showered in chemicals recently while swimming in the backyard pool.

After Sofia Gatica lost her newborn to kidney failure, she filed a complaint that led to Argentina’s first criminal convictions for illegal spraying. But last year’s verdict came too late for many of her 5,300 neighbors in Ituzaingo Annex. A government study there found alarming levels of agrochemical contamination in the soil and drinking water, and 80 percent of the children surveyed carried traces of pesticide in their blood.

American biotechnology has turned Argentina into the world’s third-largest soybean producer, but the chemicals powering the boom aren’t confined to soy and cotton and corn fields.

The Associated Press documented dozens of cases around the country where poisons are applied in ways unanticipated by regulatory science or specifically banned by existing law. The spray drifts into schools and homes and settles over water sources; farmworkers mix poisons with no protective gear; villagers store water in pesticide containers that should have been destroyed.

Now doctors are warning that uncontrolled pesticide applications could be the cause of growing health problems among the 12 million people who live in the South American nation’s vast farm belt.

In Santa Fe, cancer rates are two times to four times higher than the national average. In Chaco, birth defects quadrupled in the decade after biotechnology dramatically expanded farming in Argentina.

“The change in how agriculture is produced has brought, frankly, a change in the profile of diseases,” says Dr. Medardo Avila Vazquez, a pediatrician and neonatologist who co-founded Doctors of Fumigated Towns, part of a growing movement demanding enforcement of agricultural safety rules. “We’ve gone from a pretty healthy population to one with a high rate of cancer, birth defects, and illnesses seldom seen before.”

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