Fate and effects of esfenvalerate in agricultural ponds
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Fate and effects of esfenvalerate in agricultural ponds. / Samsøe-Petersen, L.; Gutavson, K.; Madsen, T.; Mogensen, B.B.; Lassen, P.; Skjernov, K.; Christoffersen, K.; Jørgensen, E.
In: Environmental Toxicology and Chemistry, Vol. 20, No. 7, 2001, p. 1570-1578.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Fate and effects of esfenvalerate in agricultural ponds
AU - Samsøe-Petersen, L.
AU - Gutavson, K.
AU - Madsen, T.
AU - Mogensen, B.B.
AU - Lassen, P.
AU - Skjernov, K.
AU - Christoffersen, K.
AU - Jørgensen, E.
PY - 2001
Y1 - 2001
N2 - The fate of esfenvalerate was investigated by sampling and chemical analysis after spraying of an artificial pond (25 g a.i./ha) and in the laboratory with [C-14]esfenvalerate by trapping of (CO2)-C-14 and fractionation of the sediment. The effects were investigated on pelagic communities in enclosures in a natural lake and in the laboratory on surface (Cymatia coleoptrata) and sediment (Chironomus riparius) insects. The latter were used in sediment-plus-water and in water-only tests, measuring effects on emergence and mortality. The measurements in the artificial pond indicated exposure concentrations in the surface microlayer, water column, and sediment of 0.4 mug/L. 0.05 mug/L, and 9 mug/kg dry weight, respectively, two weeks after application. The degradation studies showed a limited mineralization (26.5%) of [chlorophenyl-C-14]esfenvalerate during 112 d. Part of the substance was transformed to water-soluble compounds (18.1%) or compounds attached to fulvic acids (26.2%), humic acids (14.28), or nonextractable sediment constituents (8.8%). The formulated product Sumi-Alpha 5 FW (R) caused 100% mortality to Cymatia coleoptrata after surface application of 0.13 g a.i./ha. Effects on zooplankton were recorded at 0.005 mug/L of esfenvalerate. The 96-h median lethal concentration for first-instar larvae of Chironomus riparius was 0.13 mug/L, whereas the delayed emergence lowest-observed-effect concentration was 0.8 mug/L.
AB - The fate of esfenvalerate was investigated by sampling and chemical analysis after spraying of an artificial pond (25 g a.i./ha) and in the laboratory with [C-14]esfenvalerate by trapping of (CO2)-C-14 and fractionation of the sediment. The effects were investigated on pelagic communities in enclosures in a natural lake and in the laboratory on surface (Cymatia coleoptrata) and sediment (Chironomus riparius) insects. The latter were used in sediment-plus-water and in water-only tests, measuring effects on emergence and mortality. The measurements in the artificial pond indicated exposure concentrations in the surface microlayer, water column, and sediment of 0.4 mug/L. 0.05 mug/L, and 9 mug/kg dry weight, respectively, two weeks after application. The degradation studies showed a limited mineralization (26.5%) of [chlorophenyl-C-14]esfenvalerate during 112 d. Part of the substance was transformed to water-soluble compounds (18.1%) or compounds attached to fulvic acids (26.2%), humic acids (14.28), or nonextractable sediment constituents (8.8%). The formulated product Sumi-Alpha 5 FW (R) caused 100% mortality to Cymatia coleoptrata after surface application of 0.13 g a.i./ha. Effects on zooplankton were recorded at 0.005 mug/L of esfenvalerate. The 96-h median lethal concentration for first-instar larvae of Chironomus riparius was 0.13 mug/L, whereas the delayed emergence lowest-observed-effect concentration was 0.8 mug/L.
KW - Faculty of Science
KW - pond; fate; effects; esfenvalerate; pyrethroid; PYRETHROID INSECTICIDE; AQUATIC MESOCOSMS; COMMUNITY; LEVEL
M3 - Journal article
VL - 20
SP - 1570
EP - 1578
JO - Environmental Toxicology and Chemistry
JF - Environmental Toxicology and Chemistry
SN - 0730-7268
IS - 7
ER -
ID: 145376