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PBT assessment

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PBT assessment: overall result

Reference
Name:
2-methylanthraquinone
Type of composition:
boundary composition of the substance
State / form:
solid: bulk
Reference substance:
Composition 1
PBT status:
the substance is not PBT / vPvB
Justification:

Classification of 2-methylanthraquinone (CAS no. 84-54-8) for effects in the environment:

The test-material, 2-methylanthraquinone (CAS no. 84-54-8) has a major use in articles, in formulation or re-packing and at industrial sites. The classification of the chemical into the PBT category was mainly done based on the available data in the different section below and categorized using the Annex XIII as the reference document.

Persistence Assessment:

Chemical behaviour on the environmental media was developed by applying the mathematical method known as Fugacity model using the Estimation Programs Interface suite. According to this model the half-lives of the test chemical in the water, sediment and soil was found to be 37.5 days, 337.5 days and75 days. The values do not classify the chemical in the persistence category.

Bioaccumulation assessment

The BCFBAF Program (v3.01) of Estimation Programs Interface (2018), was used to predict bioconcentration factor (BCF) of test chemical. The estimated bioconcentration factor (BCF) of test chemical was estimated to be 44.63 L/kg whole body w.w (at 25 deg C).Other data on  test chemical  was also used in support to predicted observationfrom EPI. The BCF values of the test chemical was observed to be in the range of 5.05 – 492.

As per ANNEX XIII, the obtained values do not meet the criteria of bioaccumulation. 

 Toxicity assessment

Aquatic organisms

Eco-Toxicity data from section 6 on the short-term toxicity, indicates that test chemical likely to pose toxic effects in the aquatic environments. By considering all the aquatic endpoints it can be concluded that the toxic values could fall in the range of 0.022 to 0.21 mg/L. based on the toxic values it has been categorized as aquatic acute 1/ chronic 1 as per the CLP classification criteria. Based on available data, it is expected that test chemical NOEC can fall below the threshold value and can be classified as toxic chemical as per ANNEX XIII PBT criteria.

Mammalian toxicity

All the data for the test chemical 2-methylanthraquinone (CAS no. 84-54-8), doesn’t meet the criteria to classify the chemical in CMR and STOT

Conclusion:

On critical analysis of all the endpoints, the test chemical does not meet the criteria of Persistence (P), and Bioaccumulation (B), though it classifies Toxicity (T) criteria, it cannot be classified as the PBT chemical.