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Short-term toxicity to aquatic invertebrates

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Description of key information

Short term toxicity to aquatic invertebrate data was available for 2 streams within this Category.   48hr EC50 ranged from 0.76 - 2.9 mg/l (WAF) with EL50 of 0.91-3.2mg/l (WAF).  One study provided a 96h LC50 for a marine invertebrate and this showed LC50 1.4mg/l and NOEC of 1.0 mg/l

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Additional information

CAS No 68478-10-4Data was available for Resin Oils and Cyclic Dienes Category from ExxonMobil (2004). This is a GLP compliant, guideline study considered adequate for assessment. After Daphnia magna were exposed to WAFs prepared from Dicyclopentadiene/Codimer Concentrate for 48-hours, the EL50 was 0.91 mg/L and the EC50 was 0.76 mg/L.

CAS No 68477 -54 -3Two studies were available, the supporting study by TNO (1987) was a GLP compliant, equivalent to guideline study. The study was a marine study and no replicates were mentioned. The LC50 96 hr was 1.4 mg/l 96 hr NOEC was 1.0 mg/l for C9 Resinfeed SHC CAS Number 68477-54-3. The key study for Cas No 68477 -54 -3 (ExxonMobil 2004) was a GLP compliant, guideline study considered adequate for assessment. 48 hr EL50 ws 3.2 mg/L and the EC50 was 2.9 mg/L (WAF)