US EPA
United States Environmental Protection Agency
Ecological Fate and Effects Division
Office of Pesticide Programs
OPP Pesticide Ecotoxicity Database
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Pesticide Details
Pesticide
Methamidophos
PC Code
101201
CAS Number
10265-92-6
Type of Pesticide
Insecticide
Type of Organism
Crustacea
Common Name
Water flea
Scientific Name
Daphnia magna
Age
LifCyc
Guideline
[72-4]
Test Type
[F] Flow through system(aquatic acute or chronic)
% AI
59.8%
Study Length
21 D
Dose Type
[LOEC] for aquatic early lifestage and full lifecycle studies with both an NOEC and an LOEC
Toxicity
5.32 Parts per Billion
95% Confidence Levels
N.A.
Probit Slope
N.A.
NGL
NOEL
4.49
Study Date
2005
Review Date
2012
Category
S
MRID, ACC, TN Numbers
46554501
Laboratory
Bayer Co., Agricultural Division, U..S. (NC, KS or MO)
Reviewer
E. Gelmann
Batch Number
030413QA
Eggs Laid
% Eggs Cracked
% Eggs Viable
% Live Embryos
% Egg Hatch
11.9
14 Day Survive
21.8
Growth Effect
5.32