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Table 7 Risk assessment results from EFSA [14] approach

From: An efficient and pragmatic approach for regulatory aquatic mixture risk assessment of pesticides

Species Scenario Step in flowchart Risk assessment based on Risk per scenario and corresponding FOCUS step
Fish D3, ditch 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D4, pond 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
D4, stream 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D5, pond 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
D5, stream 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, pond 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, stream 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
R3, stream 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
R4, stream 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
Daphnids D3, ditch 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D4, pond 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
D4, stream 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D5, pond 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 3
D5, stream 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, pond 1- > 2- > 9- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, stream 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 4 (5 m spray buffer)
R3, stream 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 4 (5 m spray buffer)
R4, stream 1- > 2- > 9- > 3- > 5- > 6 Single a.s. risk assessment Acceptable, FOCUS step 4 (10 m spray buffer + 10 m veg. strip)
Algae D3, ditch 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 4 (20 m spray buffer)
D4, pond 1- > 2- > 3- > 5- > 8 Calculated mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
D4, stream 1- > 2- > 3- > 4 Measured mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
D5, pond 1- > 2- > 3- > 5- > 8 Calculated mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
D5, stream 1- > 2- > 3- > 4 Measured mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
R1, pond 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, stream 1- > 2- > 3- > 5- > 8 Calculated mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
R3, stream 1- > 2- > 3- > 5- > 8 Calculated mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
R4, stream 1- > 2- > 3- > 5- > 8 Calculated mixture toxicity Not acceptable, FOCUS step 4 (all buffer mitigations)
Lemna D3, ditch 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D4, pond 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D4, stream 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D5, pond 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
D5, stream 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, pond 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 3
R1, stream 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 4 (10 m spray buffer + 10 m veg. strip)
R3, stream 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 4 (20 m spray buffer + 20 m veg. strip)
R4, stream 1- > 2- > 3- > 4 Measured mixture toxicity Acceptable, FOCUS step 4 (10 m spray buffer + 10 m veg. strip)