by Sharon Lerner

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The Environmental Protection Agency unveiled a proposal this week to ban a controversial pesticide that is widely used on celery, tomatoes and other fruits and vegetables.

The EPA released its plan on Tuesday, nearly a week after a ProPublica investigation revealed the agency had laid out a justification for increasing the amount of acephate allowed on food by removing limits meant to protect children’s developing brains.

In calling for an end to all uses of the pesticide on food, the agency cited evidence that acephate harms workers who apply the chemical as well as the general public and young children, who may be exposed to the pesticide through contaminated drinking water.

Acephate, which was banned by the European Union more than 20 years ago, belongs to a class of chemicals called organophosphates. U.S. farmers have used these pesticides for decades because they efficiently kill aphids, fire ants and other pests. But what makes organophosphate pesticides good bug killers —........

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