Registration Dossier
Registration Dossier
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EC number: 231-105-1 | CAS number: 7439-96-5
Endpoint summary
Administrative data
Description of key information
Biodegradation in water:
According to annex VII column 2 of CLP Regulation,the study does not need to be conducted because the substance is inorganic.
Biodegradation in water/ sediments:
The study does not need to be conducted because the substance is highly insoluble in water
Biodegradation in soil:
Study was conducted to determine biodegradation of test chemical in soil . The approximate half-life of test chemical in nonsterile aerobic and anaerobic soils observed to be less than 2 days and 8 days, respectively. On the basis of above observation is is concluded that the test chemical is readily biodegradable in soil.
Additional information
Biodegradation in water:
According to annex VII column 2 of CLP Regulation,the study does not need to be conducted because the substance is inorganic.
Biodegradation in water/ sediments:
The study does not need to be conducted because the substance is highly insoluble in water.
Biodegradation in soil:
Data available for the structurally similar and closely related read across chemicals study has been reviewed to determine the biodegradation of test chemical in soil. The studies are as mentioned below:
In first study the degradation of 20 ppm and 10 ppm conc. of test chemical was investigated on silt loam soil (no sterile and sterile) under aerobic and sequential aerobic/anaerobic conditions at an average temperature of 230±0.600C. The mineralization of mancozeb was observed to be degradates to carbon dioxide only occurred in nonsterilized soils and no detectable carbon dioxide was released from sterile soils. It is indicating that mineralization was mainly conducted by microorganisms. The approximate half-lives of mancozeb in nonsterile aerobic and anaerobic soils observed to be less than 2 days and 8 days, respectively. On the basis of above observation is is concluded that the test chemical is readily biodegradable in soil.
Second study was conducted to determine the biodegradation of test chemical in soil. The test was performed in field for 6 weeks. Approximately 90% of test chemical was observed to be degraded under pH of 5.5-6.5 and medium air temperature of 11-160C. On the basis of above observation the test chemical concluded to be readily degradable.
On the basis of above observation is is concluded that the test chemical is readily biodegradable in soil.
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