Ecotoxicology:
Algae:
LC
50 (72 h) for
Scenedesmus subspicatus 0.053
mg/l.Bees:
LD
50 (oral and contact) >200 μg/bee.Birds:
LC
50 for mallard ducks 200 ppm, Japanese quail 524 ppm. Dietary toxicity (8 d) for mallard ducks >10 000
ppm.Daphnia:
LC
50 (48 h) 14.2-24
mg/l.Fish:
LC
50 (96 h) for bluegill sunfish 15, rainbow trout 3.9, crucian carp 8
mg/l.Worms:
LC
50 (14 d) 130 mg/kg.
Environmental fate:
Animals:The main metabolic reactions in rats are:
O-dealkylation leading to
O-desmethyl derivatives, substitution of the chlorine by a hydroxy group or by glutathione, reduction of the methylene chloride moiety giving rise to acetyl derivatives,Soil:Mean
oc 63 ml/g. Slightly mobile in soil. In soil,
50
c. 4-15 d, DT
90 <100 d; dissipation is by the formation of bound residues, and in parallel reactions, by successive oxidatiPlant:Metabolism involves conjugation of the chloracetyl group, hydrolysis and sugar conjugation at the ether group, and formation of a heterocyclic ether-keto ring.
WATER SOLUBILITY: 2.3 g/l at 25°C.