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Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

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Endpoint:
biodegradation in water: ready biodegradability
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
See attachment "ADP_70285-70-0_Readacross_Justification" in section 13.
Reason / purpose for cross-reference:
read-across source
Key result
Parameter:
% degradation (O2 consumption)
Value:
83
Sampling time:
28 d
Remarks on result:
other: test flask 1 after 28 d: 83.4% test flask 2 after 28 d: 83.4%
Details on results:
A 28-d ready biodegradability test (OECD 301F, Manometric Respirometry Test) using activated sludge of a municipal sewage treatment plant indicated that ATP, Di-Na (CAS 987-65-5) reached a biodegradation of 83% based on O2 consumption. The substance reached the pass level of 60% for ready biodegradability in the Manometric Respirometry Test within the 10-d window and, therefore, can be termed as readily biodegradable.
Validity criteria fulfilled:
yes
Interpretation of results:
readily biodegradable
Conclusions:
A 28-d ready biodegradability test (OECD 301F, Manometric Respirometry Test) using activated sludge of a municipal sewage treatment plant indicated that the source substance ATP, Di-Na (CAS 987-65-5) reached a biodegradation of 83% based on O2 consumption. The substance reached the pass level of 60% for ready biodegradability in the Manometric Respirometry Test within the 10-d window and, therefore, can be termed as readily biodegradable.
Based on the results from the read across, it can be assumed that also the target substance ADP (CAS 70285-70-0) can be termed as readily biodegradable.
Endpoint:
biodegradation in water: ready biodegradability
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
See attachment "ADP_70285-70-0_Readacross_Justification" in section 13.
Reason / purpose for cross-reference:
read-across source
Key result
Parameter:
% degradation (O2 consumption)
Value:
88
Sampling time:
28 d
Remarks on result:
other: test flask 1 after 28 d: 86.6% test flask 2 after 28 d: 88.6%
Details on results:
A 28-d ready biodegradability test (OECD 301F, Manometric Respirometry Test) using activated sludge of a municipal sewage treatment plant indicated that Adenosine-5’-monophosphate (AMP) (CAS no. 61-19-8) exposed reached the pass level of 60% for ready biodegradability in the Manometric Respirometry Test within the 10-d window and, therefore, can be termed as readily biodegradable.
Validity criteria fulfilled:
yes
Interpretation of results:
readily biodegradable
Conclusions:
A 28-d ready biodegradability test (OECD 301F, Manometric Respirometry Test) using activated sludge of a municipal sewage treatment plant indicated that the source substance Adenosine-5’-monophosphate (AMP) (CAS no. 61-19-8) exposed reached the pass level of 60% for ready biodegradability in the Manometric Respirometry Test within the 10-d window and, therefore, can be termed as readily biodegradable.
Based on the results from the read across, it can be assumed that also the target substance ADP (CAS 70285-70-0) can be termed as readily biodegradable.

Description of key information

Based on read-across (analogue approach) from ATP, DI-Na (CAS 987-65-5) and AMP (CAS 61-19-8) (see attachment "ADP_70285-70-0_Readacross_Justification” attached in section 13, available data indicate, that the target substance ADP (CAS 70285-70-0) can be termed as readily biodegradable.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable
Type of water:
freshwater

Additional information