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Abstract
Bisphenol A (BPA) and phthalates are among the most popular plasticizers used today and have been reported ubiquitously in surface water, ground water, and sediment. For aquatic organisms, BPA was the most toxic (96h LC50s) to aquatic invertebrates (0.96-2.70mg/L) and less toxic to fish (6.8-17.9mg/L). The toxicity of BPA to amphibians differed among developmental stages, with embryos having an LC50 of 4.6-6.8mg/L and juveniles 0.50-1.4mg/L. The toxicity of phthalates is affected by aromatic ring substitution, alkyl chain length, and metabolism. The toxicity (96h LC50s) of phthalates was similar to aquatic invertebrates (0.46-377mg/L) and fish (0.48-121mg/L). In general, the toxicity of phthalates appears to be highest around a log KOW of 6, which corresponds to the highest potential for bioconcentration and bioaccumulation. In conclusion, the lipophilicity of BPA and phthalates influence their toxicity to aquatic species.
Published Version
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