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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

No effects on mortality or number of juveniles were observed in a 28-day potworm (Enchytraeus crypticus) reproduction study (Moser and Egeler, 2007a; Staples et al., 2010). A NOEC of 100 mg/kg dw was determined.

Key value for chemical safety assessment

Long-term EC10, LC10 or NOEC for soil macroorganisms:
100 mg/kg soil dw

Additional information

In addition to performing a chronic study with earthworms, Johnson et al. (2005a) performed a short-term, acute study. However, the acute study is considered unreliable for a number of reasons, including that the control survival did not meet the validity criteria and there were no effects in the chronic study at doses that caused mortality in the acute study. The inconsistency in results prompted a new, fully valid chronic study with the potworm Enchytraeus crypticus (Moser and Egeler, 2007a). Final concentrations of Bisphenol A in the test systems, consisting of artificial soil, were 1.0, 9.5, 17.1, 30.9, 55.6, and 100 mg test item/kg soil dw (dry weight). No effects on mortality or number of juveniles were observed at the highest dose tested of 100 mg/kg dw. This is in agreement with the findings from the earthworm chronic study (Johnson et al., 2005) where the NOEC of 100 mg/kg was also established.