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EC number: 204-279-1
CAS number: 118-82-1
Ritchie et al (2013) undertook soil ecotoxicity testing on behalf of
Canada's Chemical Management Plan (CMP) with a focus on potential
effects to earthworms, Collembola and plants. In addition, information
was provided on degradation of the test substance during these tests. On
average, a 12 ±3.4% loss was observed between the beginning and end of
A bioaccumulation study of the uptake and elimination of the test
substance in earthworms was reported by Princz et al (2014). In
addition, the half-life of the test substance was recorded in the two
different test soils. The half-lives were 46 and 11 days in the clay
loam and sandy soils, respectively.
Two published studies are available which relate to laboratory studies undertaken on behalf of the Canadian Chemicals Management Plan testing programme. Princz et al (2014) is primarily a bioaccumulation study and reports half lives for the test substance in sandy and clay loam soils of 11 and 46 days, respectively. In soil toxicity studies by Ritchie et al (2013) it was concluded that the test substance was persistent with an average recovery of 77% at test end.
Two published studies are available which relate to laboratory studies
undertaken on behalf of the Canadian Chemicals Management Plan testing
programme. The key study is by Princz et al (2014) and is primarily an
environmental fate study with a focus on bioaccumulation. The authors
report half lives for the test substance in sandy and clay loam soils of
11 and 46 days, respectively. In order to be precautionary, the longest
half life is taken to represent potential persistence across a range of
natural soils in this risk assessment. A half life of 46 days (or less)
does not meet or exceed the persistence criterion of 120 days or more
and the test substance is not classified for persistence in soil.
The supporting study by Ritchie et al (2013) reported the results from a
series of soil toxicity tests with earthworm, Collembola and terrestrial
plants. The test durations varied depending on the organism being tested
with the longest duration being 63 days.
In soil toxicity studies by Ritchie et al (2013) it was concluded that
the test substance was persistent with an average recovery of 77% at
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