Table 2 Aquatic and sewage treatment plant PNEC for PSOA

Freshwater—PNEC aqua (freshwater)

0.00075^a

Assessment factor: 1000

PNEC aqua (freshwater) equals lowest short-term LC50 value of 0.75 mg/L (fish) divided by assessment factor of 1000

Marine water—PNEC aqua (marine water)

0.000075^a

Assessment factor: 10,000

PNEC aqua (marine water) equals lowest short-term LC50 value of 0.75 mg/L (fish) divided by assessment factor of 10,000

Intermittent releases to water—PNEC aqua (intermittent releases)

0.0075^a

Assessment factor: 100

PNEC aqua (intermittent releases) equals lowest short-term LC50 value of 0.75 mg/L (fish) divided by assessment factor of 100

Sewage treatment plant—PNEC (STP)

2

Assessment factor: 10

PNEC STP equals 3 h NOEC of 20 mg/L divided by assessment factor of 10