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Environmental Sciences Europe

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)

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