TRIFLURALIN: ACUTE TOXICITY TO THE MIDGE, CHIRONOMUS TENTANS, UNDER FLOW-THROUGH CONDITIONS
Abstract
The test substance trifluralin, a,a,a-trifluro-2,6-dinitro-N,N-dipropyl-p toluidine, is a
yellow-orange crystal that is used commercially as a herbicide. Its solubility in water is less
than 1 mg/L (Farm Chemicals Handbook, 1987). Commonly used trade names are DigerminR, TR-lOR,
TreflanR or TriflurexR.
The objectives of this study were to determine the toxicity of trifluralin to the midge, Chironomus
tentans, from a single exposure approaching the solubility limit of trifluralin in water, under
flow-through test conditions.
Subject
Trifluralin
acute toxicity
Chironomus tentans
flow-through