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EC number: 231-843-4
CAS number: 7758-94-3
No relevant effects
This endpoint is covered by the category approach for soluble iron salts
(please see the section for physical and chemical properties for the
category justification/report format). Testing for this endpoint has
been waived in accordance with column 2 and Annex XI, part 3,
There are no standard terrestrial toxicity tests reported in the
literature, but results from several studies investigating effects of
soluble iron salts applied directly to the soils are known from the
literature. Such direct exposure of soil macroorganisms to iron salts
can be excluded in the supported uses and is therefore not in
contradiction to the assessed absence of environmental toxicity of the
submission item. Thus these experiments are not relevant as this
exposure path is irrelevant for effects of the submission item to the
A 75 day study of the effects iron trichloride (ferric chloride) on the
earthworm (Octalasion complanatum) was conducted by Totaro et al
(1992) in an indoor laboratory site with worms collected from a natural
population. The results, expressed as measured Fe concentrations in the
soil, showed that individual weight was reduced by exposure to a
concentration of 27-42 g Fe/kg soil dw. Juvenile abundance was
unaffected at a concentration of 27-42 g Fe/kg soil dw. The total
biomass of the population was reduced by exposure to a concentration of
27-35 g/kg soil dw.
The effects on growth and the bioaccumulation of five elements (cadmium,
copper, iron, lead and zinc) in earthworms (Lumbricus terrestris)
from unfortified soils was investigated by Rida (1996). Elevated trace
element concentrations reduced earthworm growth, but no quantified
endpoints were reported.
A 75 day study with iron trichloride was conducted in an indoor
laboratory site with the Brown gardensnail (Helix aspersa).
Snails were exposed to the test substance in soil for 75 days and the
numbers of adults and juveniles determined on day 25, 50 and 75
(termination) of the test. Biomass (individuals and total) was
determined only on day 75. Individual weight was reduced by exposure to
a measured concentration of 27-42 g Fe/kg but was unaffected by exposure
to 27-30 g Fe/kg soil dw. Juvenile abundance was unaffected at either
concentration (Totaro et al 1992).
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