Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Diss Factsheets

Classification & Labelling & PBT assessment

PBT assessment

Currently viewing:

Administrative data

PBT assessment: overall result

Reference
Name:
3-(2-chlor-5-pyridyl-methyl)-cyanimino-1,3-thiazolidin
Type of composition:
legal entity composition of the substance
State / form:
solid: particulate/powder
Reference substance:
3-(2-chlor-5-pyridyl-methyl)-cyanimino-1,3-thiazolidin
PBT status:
the substance is not PBT / vPvB
Justification:

Persistence (P) Assessment

 

The degradation half-life of thiacloprid in natural surface water determined in a study following OECD 309 was 274 days (recalculated to 12°C). A mineralisation of <1% was recorded. In sediment simulation studies conducted according to EC Commision Directive 95/36/EC the determined half-life was 25.7 – 43.1 days, recalculated to 12 °C with a mineralisation of <5%.

The degradation half-life of thiacloprid was investigated in six different soils. The determined half-life was 1.5 – 10 days, recalculated to 12 °C, and 6.5 – 41.5% were mineralized.

Based on the Persistence (P/vP) criteria according to Annex XIII of the REACH Regulation thiacloprid is assessed as vP/P.

 

 

Bioaccumulation assessment

 

The substance has a low potential for bioaccumulation based on log Kow <=3 and thus studies on the bioaccumulation of do not need to be conducted.

Therefore, the substance does not meet the B criterion.

 

 

Toxicity assessment

 

The lowest chronic aquatic effect value was a NOEC of 0.56 µg/L (nominal, OECD 233, Chironomus riparius) and thus the T-criterion is met.

 

 

Overall conclusion:

Based on the assessment described in the subsections above the substance is not PBT.