Abstract
ABSTRACT A prioritization method that was developed to rank chemical substances on the basis of their environmental impact was applied to 230 new substance notifications from earlier European chemical legislation (67/548/EEC). The method encompasses three steps: (1) assigning an environmental hazard score, (2) assigning an environmental exposure score, and (3) combining these two scores into one priority score. In this study, the resulting scores ranged between 4 (highest priority) and 15 (lowest priority). The scores were compared with results from risk assessments available for 138 of the 230 substances. For most substances in these assessments, a priority score of 12 or higher was associated with no or limited risk, while a score of 11 or lower represented high risk or led to the conclusion that risk reduction measures were required. This categorization applied to all but 15 of the 138 substances. The method was also used for ranking the first 15 Substances of Very High Concern (SVHC) under REACH regulation, to compare the priority scores of new substances to those of the SVHC. In sum, the prioritization method seems to be valuable to identify substances of concern with respect to the environment.
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