Värdering av föroreningsrisk - Ett förslag till angreppssätt för värdering av föroreningsrisk till följd av emission från en vägkonstruktion
RestmaterialEmissionRisk Management and Safety engineeringNaturmaterialRiskkriteriumSkyddsobjektVägkonstruktionFöroreningsriskFöroreningRiskvärderingRisk criteriaNatural materialRoad constructionRisk evaluationRisk of contaminationRiskhanteringTechnology and Engineering
When constructing a road the risk of emission of substances from the used materials to the surrounding environment has to be evaluated. The aim of this study is to present a proposal for how to evaluate the risk of contamination as a result of emission from the materials in a road construction. The study is based on literature studies, an inventory and a questionnaire that examines how experts in governmental agencies, industries and universities evaluate the risk of contamination. The inventory indicates that guidelines for evaluating the risk of emission from secondary materials in a road construction do not exist. The conclusions from the questionnaire are: that there is no common way to evaluate the risk of contamination as a result of emission from materials in the road construction, there is no uniform interpretation of the terms "minor" and "significant" risk of contamination and that the evaluation is subjective. The proposed method for evaluation of risk of contamination is based on four steps; identify an endpoint, estimate the magnitude of risk of contamination, set the risk in relation to the benefits with the road construction and determine whether the risk of contamination is acceptable.