Ecotoxicology:
Bees:
LD
50 (contact) 0.18
mg/bee.Birds:Acute oral
LD
50 for bobwhite quail 900, mallard ducks >2000
mg/kg. Dietary
LC
50 (5 d) for mallard ducks 5960, bobwhite quail 1435 mg/kg diet.Daphnia:
LC
50 (48 h) 2.07
mg/l.Fish:
LC
50 (96 h) for rainbow trout 1.6, bluegill sunfish 37, goldfish 32
mg/l.Worms:
LC
50 (14 d) for
Eisenia foetida 885 mg/kg.
Environmental fate:
Animals:In rats, following oral administration, dicloran is rapidly metabolised, and excreted in the urine as the sulfate conjugate of 4-amino-3,5-dichlorophenol.Soil:Microbial degradation involves reduction to 4-amino-2,6-dichloroaniline. Soil
DT
50 39-78 d (sandy loam,
pH 6.3-7.1,
o.m. 0.7-3.4%);
K
oc 760 (sand,
pHPlant:In plants, the principal metabolites are 4-amino-3,5-dichlorophenol, 4-amino-2,6-dichloroacetanilide and 4-amino-2,6-dichloroaniline.
WATER SOLUBILITY: Dispersible