J 2023

How error-prone bioaccumulation experiments affect the risk assessment of hydrophobic chemicals and what could be improved

GLUEGE, Juliane, Beate I. ESCHER and Martin SCHERINGER

Basic information

Original name

How error-prone bioaccumulation experiments affect the risk assessment of hydrophobic chemicals and what could be improved

Authors

GLUEGE, Juliane, Beate I. ESCHER and Martin SCHERINGER (756 Switzerland, guarantor, belonging to the institution)

Edition

Integrated Environmental Assessment and Management, Hoboken, Wiley, 2023, 1551-3777

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30108 Toxicology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.100 in 2022

RIV identification code

RIV/00216224:14310/23:00131194

Organization unit

Faculty of Science

UT WoS

000897858500001

Keywords in English

Bioaccumulation; bioconcentration factor; hydrophobic substances; risk assessment

Tags

Tags

International impact, Reviewed
Změněno: 9/3/2024 14:44, Mgr. Michaela Hylsová, Ph.D.

Abstract

V originále

Bioaccumulation is one of the three criteria for the PBT assessment of chemicals, where P stands for persistence, B for bioaccumulation, and T for toxicity, which is a cornerstone for the “Registration, Evaluation, Authorization, and Restriction of Chemicals” (REACH) in the EU. Registrants are required by REACH to submit data on bioaccumulation if the chemical is manufactured in and/or imported to the European Economic Area at more than 100 t/year. Most of the experimental bioaccumulation studies submitted were on the bioconcentration factor (BCF) and were conducted prior to 2012, before the OECD Test Guideline 305 on Bioaccumulation in Fish was updated. An analysis of the submitted data revealed that many of the experimental data, but also the data from QSARs and other calculation methods, underestimate the actual bioaccumulation potential of hydrophobic substances considerably. One of the main reasons in the nonexperimental studies is that the BCF is related there to the total concentration of the chemical in water and not to the dissolved chemical concentration. There is therefore an urgent need to reassess the bioaccumulation potential of the hydrophobic substances registered under REACH. Based on the model calculations in the present study, between 332 and 584 substances that are registered under REACH are likely to bioaccumulate in the aquatic environment—many more than have so far been identified in the B assessment. Integr Environ Assess Manag 2023;19:792–803.

Links

EF15_003/0000469, research and development project
Name: Cetocoen Plus
EF17_043/0009632, research and development project
Name: CETOCOEN Excellence
90121, large research infrastructures
Name: RECETOX RI