EU Approach for Environmental Exposure Assessment: Actual Status and Future Needs
作者:
R. Diderich,
期刊:
SAR and QSAR in Environmental Research
(Taylor Available online 1997)
卷期:
Volume 6,
issue 1-2
页码: 19-28
ISSN:1062-936X
年代: 1997
DOI:10.1080/10629369708031722
出版商: Taylor & Francis Group
关键词: Chemical substance;risk assessment;mathematical models;environmental exposure;release estimation
数据来源: Taylor
摘要:
To estimate the environmental concentration of a chemical substance, as required by the legislation of the European Union in the context of the risk assessment of chemical substances, several mathematical models are proposed. Representative and reliable analytical monitoring data for the different environmental compartments are indeed only seldom available. The proposed models are simple models as for instance multimedia fugacity models. Although the results of these models only provide an imperfect approximation of the concentration in the different compartments, very high uncertainties can lie upon certain input parameters, like the quantities of the substance released during one of its life-stages, its biodegradation rate in the respective compartments or its partition coefficients between those compartments. The improvement of the risk assessment scheme as proposed by the EU-Member States should focus on these input parameters. This might imply further adapting the test methods or even the requested test battery to the physical-chemical properties or even the structure of a substance.
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