Registration Dossier
Registration Dossier
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EC number: 433-460-1 | CAS number: 210880-92-5
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Clothianidin
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- Clothianidin
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Persistence (P) Assessment
The degradation half-life of chlothianidin in natural surface water determined in a study following OECD 309 was > 1 year (recalculated to 12°C). A mineralisation of <1% was recorded. In a sediment simulation study conducted according to EC Commision Directive 95/36/EC the determined half-life was 102 – 138 days, recalculated to 12 °C with a mineralisation of <5%.
The degradation half-life of chlothianidin in soil was investigated in studies following OECD 307. The determined half-life was 33 – 381 days, recalculated to 12 °C, and 9.4 – 29.3% were mineralized.
Based on the Persistence (P/vP) criteria according to Annex XIII of the REACH Regulation clothianidin is assessed as vP/P.
Bioaccumulation assessment
The substance has a low potential for bioaccumulation based on a log Kow <=3.
Therefore, the substance does not meet the B criterion.
Toxicity assessment
A long-term no-observed effect concentration of less than 0.01 mg/L was determined for Chironomus riparius (EC10 (28 d): 0.4 µg a.s./L). Based on the available data substance is considered to fulfil the T criterion.
Summary and overall conclusions on PBT or vPvB properties
Overall conclusion:
Based on the assessment described in the subsections above the substance is not PBT.
Reference
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