A tiered-assessment scheme for the exposure assessment of aquatic organisms in Dutch surface waters : Upwards and sideways spraying

n this report, we propose a tiered approach for the exposure assessment of aquatic organisms in Dutch surface waters. The tiered approach has been developed for upwards and sideways spraying techniques. The tiered approach consists of three tiers and a pre-assessment tier. In anticipation of the acceptance of the repaired FOCUS surface water scenarios in the risk assessment of active substances by the EU, the (repaired) FOCUS surface water scenario (FOCUS SW D3) is used in Tier-1. Currently, a decision on the temporal percentile to be used in the risk assessment still needs to be taken by the... Mehr ...