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EC number: 200-756-3
CAS number: 71-55-6
As 1,1,1-trichloroethane has no specific herbicide or activity testing on higher aquatic plants is not required. The literature contains no information on the studies conducted in this area therefore it is presumed to address this data requirement by waiver as the risk of exposure is low.
The distribution model used in
the Euro Chlor review indicates that there is very little deposition to
the aquatic environment and virtually none to the terrestrial
environment. This summary of existing data and the risk assessment
conducted by De
Rooij et al 2004 concluded that the biological action of
1,1,1-trichloroethane can be classified as basic rather than specific.
As 1,1,1-trichloroethane has not been shown to have herbicidal
properties and the
PEC/PNEC ratios for algae are sufficiently high current European
guidance relating to other directives such as 91/414 would indicate that
additional testing on aquatic higher plants is not required
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