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Levels of the herbicide Diquat in two estuarine molluscs and in the water and mud

Haven, Dexter S.
Abstract
Soft clams Mya arenaria and oysters Crassostrea virginica were exposed to 0.35 ppm of the herbicide Diquat during June and July 1967 in Nomini Creek Virginia, a tributary of the Potomac. No detectable residue was found in oyster meats or in the water. Meats of soft clams minus the rough integument surrounding the neck, showed no Diquat. The integument, however, contained from 0.00 to 0.05 ppm. Mud samples contained from 1.17 to 7 .14 ppm. It was assumed that Diquat was strongly sorbed on clay particles in sediments; residues in clam integuments were due to trapped clay particles.
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1969
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Levels_of_the_Herbicide_Diquat_in_Two_Estuarine_Molluscs.pdf
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Fisheries Science Peer-Reviewed Articles
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Virginia Institute of Marine Science
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https://scholarworks.wm.edu/handle/internal/18100
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