Existing Default Values And Recommendations For Exposure Assessment
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Existing default values and recommendations for exposure assessment
Author: Nielsen, Elsa
language: en
Publisher: Nordic Council of Ministers
Release Date: 2023-03-10
Available online: https://pub.norden.org/temanord2023-508/ This is a timely revision and update of the Nordic report on existing default values and recommendation for exposure assessments, from 2011. The report aims to give an updated overview of non-chemical-specific exposure factors to be used by the authorities during the process of assessing exposure to both adults and children, especially in risk assessment in relation to REACH. This contributes towards a further harmonization of such exposure factors to be used in exposure assessments. In the report the recommended values for the non-chemical specific exposure factors are represented. The focus of this report is to be used in the context of REACH, however, the recommended values can also be used in the broader context of chemical regulations.
Existing Default Values and Recommendations for Exposure Assessment
Author: Nordiska Ministerrådet
language: en
Publisher: Nordic Council of Ministers
Release Date: 2012
Abstract: Default values are often used in exposure assessments e.g. in modelling because of lack of actually measured data. The quality of the exposure assessment outcome is therefore heavily dependent on the validity and representativeness this input data. Today the used default factors consist of a wide range of more or less well-documented values originating from many different sources. The purpose of this report is to give an overview and to evaluate exposure factors that are currently used by the authorities and industry in the exposure assessments for both adults (occupational and consumer exposure) and children in relation to REACH. Another important purpose of the report is to contribute towards a further harmonisation of exposure factors by giving recommendations of most valid and representative defaults. These recommendations can be used besides REACH also in biocide's and plant protection product's exposure assessments. The exposure default values were collected from the relevant European sources (ECHA, Consexpo, EUSES, Biocide TNsG, ECETOC, ExpoFacts) as well as from WHO and US-EPA. The following key default factors selected to the evaluation: body weight, body surface area, inhalation rate, soil and dust ingestion, drinking water, food intake, non-dietary ingestion factors, lifetime expectancy, activity factors and consumer products
Existing Default Values and Recommendations for Exposure Assessment
Abstract: Default values are often used in exposure assessments e.g. in modelling because of lack of actually measured data. The quality of the exposure assessment outcome is therefore heavily dependent on the validity and representativeness this input data. Today the used default factors consist of a wide range of more or less well-documented values originating from many different sources. The purpose of this report is to give an overview and to evaluate exposure factors that are currently used by the authorities and industry in the exposure assessments for both adults (occupational and consumer exposure) and children in relation to REACH. Another important purpose of the report is to contribute towards a further harmonisation of exposure factors by giving recommendations of most valid and representative defaults. These recommendations can be used besides REACH also in biocide's and plant protection product's exposure assessments. The exposure default values were collected from the relevant European sources (ECHA, Consexpo, EUSES, Biocide TNsG, ECETOC, ExpoFacts) as well as from WHO and US-EPA. The following key default factors selected to the evaluation: body weight, body surface area, inhalation rate, soil and dust ingestion, drinking water, food intake, non-dietary ingestion factors, lifetime expectancy, activity factors and consumer products