Comparison between Communicated and Calculated Exposure Estimates Obtained through Three Modeling Tools
| Autor: | Domenico Maria Cavallo, Andrea Spinazzè, Monica Locatelli, Costanza Rovida, Daniele Magni, Francesca Borghi, Andrea Cattaneo |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Health
Toxicology and Mutagenesis STOFFENMANAGER® lcsh:Medicine 010501 environmental sciences Ecotoxicology 01 natural sciences Risk Assessment exposure scenario Article 03 medical and health sciences 0302 clinical medicine Occupational Exposure Statistics Humans occupational exposure assessment Chemical risk 0105 earth and related environmental sciences Exposure assessment Material safety data sheet advanced REACH tool (ART) ECETOC TRA scaling risk characterization ratio occupational exposure models REACH lcsh:R Public Health Environmental and Occupational Health 030210 environmental & occupational health Environmental science Risk assessment Algorithms Environmental Monitoring |
| Zdroj: | International Journal of Environmental Research and Public Health Volume 17 Issue 11 International Journal of Environmental Research and Public Health, Vol 17, Iss 4175, p 4175 (2020) |
| ISSN: | 1660-4601 |
| Popis: | This study aims to evaluate the risk assessment approach of the REACH legislation in industrial chemical departments with a focus on the use of three models to calculate exposures, and discuss those factors that can determine a bias between the estimated exposure (and therefore the expected risk) in the extended safety data sheets (e-SDS) and the expected exposure for the actual scenario. To purse this goal, the exposure estimates and risk characterization ratios (RCRs) of registered exposure scenarios (ES &ldquo communicated exposure&rdquo and &ldquo communicated RCR&rdquo ) were compared with the exposure estimates and the corresponding RCRs calculated for the actual, observed ES, using recommended tools for the evaluation of exposure assessment and in particular the following tools: (i) the European Centre for Ecotoxicology and Toxicology of Chemicals Targeted Risk Assessment v.3.1 (ECETOC TRA), (ii) STOFFENMANAGER® v.8.0 and (iii) the Advanced REACH Tool (ART). We evaluated 49 scenarios in three companies handling chemicals. Risk characterization ratios (RCRs) were calculated by dividing estimated exposures by derived no-effect levels (DNELs). Although the calculated exposure and RCRs generally were lower than communicated, the correlation between communicated and calculated exposures and RCRs was generally poor, indicating that the generic registered scenarios do not reflect actual working, exposure and risk conditions. Further, some observed scenarios resulted in calculated exposure values and RCR higher than those communicated through chemicals&rsquo e-SDSs thus &lsquo false safe&rsquo scenarios (calculated RCRs > 1) were also observed. Overall, the obtained evidences contribute to doubt about whether the risk assessment should be performed using generic (communicated by suppliers) ES with insufficient detail of the specific scenario at all companies. Contrariwise, evidences suggested that it would be safer for downstream users to perform scenario-specific evaluations, by means of proper scaling approach, to achieve more representative estimates of chemical risk. |
| Databáze: | OpenAIRE |
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