Registration Dossier
Registration Dossier
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EC number: 203-585-2 | CAS number: 108-46-3
Ecotoxicological Summary
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.
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