Toxicity assessment of diazinon in a constructed wetland using Hyalella azteca.
The goal of this study was to examine the use of a constructed wetland to mitigate the ecological impacts of simulated diazinon runoff from agricultural fields into receiving waters, via 48 h aqueous and sediment bioassays using Hyalella azteca. Aqueous animal 48 h survival varied temporally and spatially in conjunction with measured diazinon concentrations. Sediment H. azteca survival varied temporally and spatially in conjunction with measured diazinon concentrations, but less than aqueous exposures, confirming that sediment bound diazinon was less bioavailable than aqueous diazinon.
Smith
S
S
USDA-ARS National Sedimentation Laboratory, PO Box 1157, Oxford, MS 38655, USA. ssmith@ars.usda.gov
Lizotte
R E
RE
Moore
M T
MT
D000383:Agriculture; D033304:Amphipoda / Q000187:drug effects*; D000818:Animals; D003976:Diazinon / Q000032:analysis / Q000633:toxicity*; D019015:Geologic Sediments / Q000032:analysis; D007306:Insecticides / Q000032:analysis / Q000633:toxicity*; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*; D014876:Water Pollution / Q000517:prevention & control; D053833:Wetlands
D007306:Insecticides; D014874:Water Pollutants, Chemical; D003976:Diazinon