Registration Dossier
Registration Dossier
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EC number: 204-800-2 | CAS number: 126-73-8
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- 2018
- Reliability:
- other: additional information
Data source
Reference
- Reference Type:
- publication
- Title:
- Assessing ecological risk of organophosphate esters released from sediment with both of total content and desorbable content
- Author:
- Qinya Fan, Xinqing Zou, Jianhua Gao, Yu Cheng, Chenglong Wang, Ziyue Feng, Yongcheng Ding, Chuchu Zhang
- Year:
- 2 021
- Bibliographic source:
- Science of the Total Environment 772 (2021) 144907
Materials and methods
Test material
- Reference substance name:
- Tributyl phosphate
- EC Number:
- 204-800-2
- EC Name:
- Tributyl phosphate
- Cas Number:
- 126-73-8
- Molecular formula:
- C12H27O4P
- IUPAC Name:
- tributyl phosphate
- Details on test material:
- No further information is reported.
Constituent 1
Results and discussion
Any other information on results incl. tables
Organic pollutants can diffuse into sediments in the form of a chemical matrix. The adsorption and desorption of this chemical matrix affect organophosphate esters (OPEs) diffusion and bioavailability and thus determine their ecological risk. In this study, ecological risk assessment is revised using the value of desorbable OPEs, instead of the sum of fractions. A case study in the South Yellow Sea (SYS), China was conducted to verify the revised ecological risk assessment. Sediment samples were collected from SYS in August 2018. The abundance of individual OPEs in sediments was measured and 0.88 ± 0.66 ng/g tributyl phosphate (TBP) were detected. When comparing this experimental value of the abundance in sediment to the PECsediment used in the risk assessment (4 orders of magnitude higher), it can be demonstrated that a very conservative assumption and calculation is made in the risk assessment.
Applicant's summary and conclusion
- Executive summary:
Organic pollutants can diffuse into sediments in the form of a chemical matrix. The adsorption and desorption of this chemical matrix affect organophosphate esters (OPEs) diffusion and bioavailability and thus determine their ecological risk. In this study, ecological risk assessment is revised using the value of desorbable OPEs, instead of the sum of fractions. A case study in the South Yellow Sea (SYS), China was conducted to verify the revised ecological risk assessment. Sediment samples were collected from SYS in August 2018. The abundance of individual OPEs in sediments was measured and 0.88 ± 0.66 ng/g tributyl phosphate (TBP) were detected. When comparing this experimental value of the abundance in sediment to the PECsediment used in the risk assessment (4 orders of magnitude higher), it can be demonstrated that a very conservative assumption and calculation is made in the risk assessment.
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