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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

Reference
Name:
Thiamethoxam
Type of composition:
legal entity composition of the substance
State / form:
solid: particulate/powder
Reference substance:
Thiamethoxam
PBT status:
the substance is not PBT / vPvB
Justification:

It can be stated that the substance does not fulfil the PBT criteria (not PBT) and not the vPvB criteria (not vPvB).
Persistence:
The substance is not readily biodegradable. In a weight-of-evidence approach, (a)biotic degradation available is assessed. Based on the available data, the test substance does not meet the Persistence criteria and may therefore be considered to be 'not P/vP'.
Bioaccumulation:
The test substance is considered not bioaccumulative based on a bioaccumulation in fish study. Further, the substance has a log Kow of ≤4.5 and may therefore be considered to be 'not B/vB'.  
Toxicity:
Based on the available information, the substance is considered to be very toxic to aquatic organisms, with a long-term NOEC of less than 0.01 mg/L in at least one tested freshwater invertebrate species. The substance is considered to meet the 'T' criterion.