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Long-term toxicity to aquatic invertebrates

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In a key semi-static 21-day long-term Daphnia magna reproduction toxicity test (OECD 211; KS=1), 10 animals/loading were exposed to the WAF of a residual aromatic extract (PSG 1857) at nominal concentrations of 0, 10, and 1000 mg/L. The EL50 was > 1,000 mg/L based on reproduction. The NOEL was ≥1,000 mg/L based on reproduction and immobilisation (BP Oil Europe, 1995).

 

In a supporting semi-static 21-day Daphnia magna reproduction toxicity test (OECD 211; KS=2), 1 daphnid/replicate were exposed to residual aromatic extract (EL-4199) at nominal concentrations of 0, 1, or 100 mg/L. The 21-day EL50 was >100 mg/L based on reproduction capacity. The NOEL was ≥ 100 mg/L based on reproduction capacity and length of the parent animals (Kuwait Petroleum, 2005b). 

 

In a supporting semi-static Daphnia magna reproduction toxicity test (OECD 211; KS=2), 1 daphnid/replicate was exposed to the WAF of residual aromatic extract (Extrait 5; CAS# 91995-70-9) at nominal concentrations of 4.77, 15.26, 48.83, 156.26 or 500.00 mg/L. The EL50 was > 500 mg/L and the NOEL was ≥ 500 mg/L based on no significant differences between control and test replicates (Total France, 2007).