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Journal of Environmental Quality Abstract -

Losses of Diuron, Linuron, Fenac, and Trifluralin in Surface Drainage Water1


This article in JEQ

  1. Vol. 4 No. 3, p. 399-402
    Received: Nov 15, 1974

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  1. G. H. Willis2,
  2. R. L. Rogers3 and
  3. L. M. Southwick2



Diruon [3-(3,4-dichlorophenyl)-1,1-dimethylurea], linuron [3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea], fenac [(2,3,6-trichlorophenyl)acetic acid], and trifluralin (α,α,α-trifluoro-2,6-dinitro- N,N-dipropyl-p-toluidine) were applied to plots designed for sampling surface runoff. Over a 3-year period, highest concentrations in runoff were usually associated with rainstorms that occurred soon after application. Maximum seasonal losses were < 0.12, 0.30, 2.90, and 0.05% of the applied diuron, linuron, fenac, and trifluralin, respectively. The data suggest that with proper use on agricultural land in the lower Mississippi River Valley these herbicides pose little threat to adjacent aquatic areas.

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