Environmental Research Foundation . . P.O. Box 5036, Annapolis, MD 21403 . .
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To subscribe, E-mail the words . . Dogs walk across, or roll in, herbicide-treated lawns and then ingest toxic chemicals when they lick their coats or paws. In the past decade, several studies of farmers, and a few of railroad workers, have shown a connection between exposure to 2,4-D and an increased risk of human cancers. In dogs, malignant lymphomas and non-Hodgkin's lymphomas predominate. It is not clear exactly which components of weed killers are responsible for the cancers.