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PBT assessment

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PBT assessment: overall result

Reference
Name:
Direct Blue 199
Type of composition:
legal entity composition of the substance
State / form:
solid: particulate/powder
Related composition:
Composition 7
Reference substance:
Composition 1
Reference substance:
Composition 1
Reference substance:
Composition 1
Reference substance:
Composition 1
PBT status:
the substance is not PBT / vPvB
Justification:

PERSISTENCE

The substance is considered as neither readily nor inherently biodegradable in standard tests for biodegradability. Furthermore, abiotic degradation by hydrolysis is excluded estimated to be negligible degradation pathway due to the chemical structure and functional groups presents.

Thus, the substance should be considered as persistent.

 

BIOACCUMULATION

Many substances with a molecular mass greater than 700 are not readily taken up by fish, because of possible steric hindrance at passage of gill membranes or cell membranes of respiratory organs. The substance has a negative log Kow and can be described by a molecular weight of 858 g/mol, thus it is unlikely to be characterized by a bioaccumulative potential.

 

TOXICITY

Adequate chronic toxicity data are not available, therefore the aquatic toxicity assessment and classification are based mainly on the short-term toxicity data available. Direct and indirect exposure is unlikely due to the risk management measures that will be applied at industrial level and discussed in details within the exposure scenario to avoid any release of the substance directly in the municipal waste water treatment.

The substance is not classified as carcinogenic, germ cell mutagenic, or toxic for reproduction and it does not show evidence of chronic toxicity.

Although the information are not sufficient to reach a definitive conclusion on T-criterion, the substance is reasonable expected to be non-toxic.