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EC number: 931-125-7
CAS number: -
adult emergence and larval growth was >200 mg/L, NOEC for egg production
was >100 mg/L.
Test concentration <= 200 mg/L: pupation and adult emergence up to and
including day 22
concentration > 200 mg/L: pupation and adult emergence on day 30
effect concentrations were calculated:
F0 hatchability 551.8
F0 pupation 298.1
F0 adult emergence 274.2
F1 egg production 364.9
on adult emergence are not interpreted as toxic effects, but rather are
related to the physical properties of the test material as they settled
to the bottom of the test chamber.
Inhibition of larval growth is discussed as generalised response of the
midges to adverse environmental conditions, and here probably reflects a
growth lag resulting from the ingestion of the nonnutritive zeolite
particulates during feedings.
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