Registration Dossier
Registration Dossier
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EC number: 692-061-0 | CAS number: 1207435-39-9
Endpoint summary
Administrative data
Description of key information
The aquatic toxicity of Fast pyrolysis bio-oil was tested using three aquatic organisms from different trophic levels (fish, crustacea and algae). Due to the partial poor water-solubility and high viscosity of the substance, the organisms were exposed to a Water Accommodated Fraction (WAF) of the test substance, which is a commonly accepted procedure for regulatory studies on poorly soluble substances. The loading rates used in these studies were up to 100 mg/L. With fish and algae, acute toxicity was studied; with crustacea, a chronic 21-d reproductive toxicity test was performed. Given as actual (measured) concentrations, the fish study yielded a LC50 (96 h) of 63.7 mg/L and the algae study an ErC50 (72) h of 35.4 mg/L and NOEC (72 h) of 11.6 mg/L. For crustacea, NOEC (21 d) was 37.9 mg/L and EC50 (endpoint mortality, both 21 d and 48 h) > 37.9 mg/L, which was the highest actual concentration studied.
The uses of Fast pyrolysis bio-oil (production, distribution and use as fuel) take place in closed systems and involve minor releases into wastewater and only accidental direct releases into soil and water systems.
Additional information
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