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Description of key information

Dwyer et al (2005) reported a 96 hr LC50 of 0.12 mg/L nonylphenol forBufo boreas boreas.

Quinn et al (2006) reported a 50 day LC10 (survival) of 0.68 mg/L nonylphenol forDreissena polymorpha.

Additional information

A reliable study on exposure of the boreal toadBufo boreas boreas(Amphibia) tadpoles to nonylphenol reported by Dwyer et al (2005) with 96 hr test results based on tadpole survival. Dwyer et al (2005) reported an LC50 concentration of 0.12 mg nonylphenol/L for boreal toad survival. A supporting study by Park et al (2010) provided reliable results forBombina orientalisembryos and tadpoles exposed for 7 and 10 days resulting in a NOEC for mortality and metamorphosis and a LOEC for body length of 0.1µmol/L.