Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.11 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
1.1 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.011 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Sediment (marine water)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

In the short-term aquatic toxicity tests conducted for 3 trophic levels (i.e. fish, invertebrates and algae), Guanidine phosphate (1:1) did not cause acute toxic effects at concentrations ≤1 mg/L (classification cut-off value is ≤1 mg/L). Concerning the long-term aquatic hazard, Guanidine phosphate (1:1) was not readily biodegradable and the log Kow was -3.48. In the algae growth inhibition test, the 72h-NOEC for growth rate reduction was 10 mg/L and the 72h-ErC50 was 110 mg/L. In accordance with the 2nd ATP of Regulation (EC) No 1272/2008 (CLP) Guanidine phosphate (1:1) is not classified.