Registration Dossier

Ecotoxicological information

Toxicity to soil microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to soil microorganisms
Data waiving:
other justification
Justification for data waiving:
other:

Description of key information

Direct and indirect exposure of the test item 1,1’-(1,1,2,2-tetramethylethylene)dibenzene to soil is highly unlikely. The test substance is practically insoluble in water.  In addition, low exposure is guaranteed, as no sludge application from STP on soil will be done and aerial deposition is negligible. Thus, toxicity to soil microorganisms was considered not scientifically justified.

Key value for chemical safety assessment

Additional information

The performance of a test for toxicity to soil microorganisms was considered scientifically not justified.

REACH Regulation (EC) No 1907/2006, Annex IX, Sect. 9.4, Col. 2, states as follows:

“9.4.2: Effects on terrestrial organisms: These studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely.”

Direct and indirect exposure of the test item 1,1’-(1,1,2,2-tetramethylethylene)dibenzene to soil is highly unlikely. The test substance is practically insoluble in water. In addition, low exposure is guaranteed, as no sludge application from STP on soil will be done and aerial deposition is negligible. Thus, toxicity to soil microorganisms was considered not scientifically justified.