Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.017 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.002 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.08 mg/kg sediment dw
Extrapolation method:
sensitivity distribution

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.008 mg/kg sediment dw
Extrapolation method:
sensitivity distribution

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
10 mg/kg soil dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Based on available data, resorcinol is classified as an Acute Category 1 based on results from a 48 hr static study, aquatic invertebrate Daphnia magna, in which concentrations of resorcinol were calculated from compositions of the stock solutions. The 48 hour LC50 in this study was = 1.00 mg/L (measured). 

Resorcinol was evaluated in the context of chronic aquatic toxicity based on the European Union's Classification, Labeling and Packaging Directive (1272/2008) in which it was concluded that the substance does not meet the criteria for classification in association with section 4, Environmental Hazards. Classification not only takes into consideration a substances toxicity but also biodegradation, potential for bioaccumulation including the partition coefficient. Based on a 21 day NOEC (Daphnia magna) of 0.172 mg/L (highest dose tested), the substance being readily biodegradable, a low potential for bioaccumulation (BCF = 3.16) and a log Kow of 0.80; it was concluded the substance does not meet the criteria for classification.