Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

additional ecotoxicological information
Type of information:
experimental study
Adequacy of study:
other information
Study period:
other: no reliability is given (non-standard test organism)

Data source

Reference Type:
First study on the presence of plastic additives in loggerhead sea turtles (Caretta caretta) from the Mediterranean Sea
Berta Sala, Aleix Balasch, Ethel Eljarrat, Luis Cardona
Bibliographic source:
Environmental Pollution 283 (2021) 117108

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Tributyl phosphate
EC Number:
EC Name:
Tributyl phosphate
Cas Number:
Molecular formula:
tributyl phosphate
Details on test material:
No further information is reported.

Results and discussion

Applicant's summary and conclusion

Executive summary:

Loggerhead turtles (Caretta caretta) voluntarily ingest floating plastic debris and hence are chronically exposed to plastic additives, but very little is known about the levels of these compounds in their tissues. This work studied the presence of organophosphate esters (OPEs) on sea turtles collected from two different areas in the western Mediterranean, some of their prey and some floating plastic debris.
Currently, there is not enough information to assess whether the OPE concentration levels detected in urtles may represent a risk for them. There is insufficient knowledge related to OPEs toxicity, and there are no data regarding potential effects on turtles. Samples corresponding to the main turtle prey (jellyfish, squid and sardine), as well as different types of marine plastic debris were analysed.
Tributylphosphate (TNBP) was present in plastic debris (mean: 1.76 ng/g), turtle muscle (catalan coastline mean: 0.23 ng/g; balearic islands mean: 0.15 ng/g) and prey (mean: 0.83 ng/g) and for that reason turtles might acquire TNBP from plastic debris, diet or both. TNBP has a log Kow value lower than 4.5 as well as a bioconcentration factors (BCFs) below 2000, and hence a lack of bioaccumulative properties (EU REACH) and is thus more likely to be derived from plastic debris.