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Dogging a pesticide-cancer link.

Several studies have linked farm workers' use of phenoxy herbicides with an increased risk of non-Hodgkin's lymphoma. Now, researchers led by Howard M. Hayes of the National Cancer Institute report finding an overall 30 percent increase in malignant lymphoma -- the canine equivalent of non-Hodgkin's -- in dogs whose owners used 2,4-D on their lawns. Some owners applied this phenoxy herbicide themselves, while others hired a lawn-care company for the task. Dogs whose owners applied it themselves faced a 90 percent increased risk of the cancer -- which constitutes roughly one in seven canine malignancies seen by university veterinary clinics.

The dog study "suggests that the human health implications of 2,4-D exposures in the home environment warrant further investigation," the researchers conclude in the Sept. 4 JOURNAL OF THE NATIONAL CANCER INSTITUTE.
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Title Annotation:phenoxy herbicides linked to non-Hodgkin's lymphoma in dogs
Publication:Science News
Date:Sep 21, 1991
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