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Low Herbicide Concentration Found in Streamflow After a Grass Cover is KilledAuthor(s): J.E. Douglass; D.R. Cochrane; G.W. Bailey; J.I. Teasley; D.W. Hill
Source: Res. Note SE-108. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 3 p.
Publication Series: Research Note (RN)
Station: Southeastern Forest Experiment Station
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DescriptionThe grass cover on a steep Appalachian watershed was sprayed in 1966 with herbicides-first with atrazine and paraquat and later with atrazine and 2,4-D. Although grass growing in the stream channel was sprayed during the first treatment, atrazine and paraquat levels in water samples were low. For the second treatment, a 10-foot strip on either side of the channel was left unsprayed. No increase in atrazine concentration was noted, and no 2,4-D was detected. Thus, use of these chemicals does not appear to constitute a water pollution hazard when reasonable care is taken to protect streamside vegetation and the stream from direct contamination.
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CitationDouglass, J.E.; Cochrane, D.R.; Bailey, G.W.; Teasley, J.I.; Hill, D.W. 1969. Low Herbicide Concentration Found in Streamflow After a Grass Cover is Killed. Res. Note SE-108. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 3 p.
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