Acute Toxicities of Penta-BDE in TiO2 Nanoparticle Suspensions to Daphnia magna

Sheng Yan Tian; Yi Nan Gao; Chun Zheng Song

doi:10.4028/www.scientific.net/AMR.864-867.261

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Acute Toxicities of Penta-BDE in TiO2 Nanoparticle...

Acute Toxicities of Penta-BDE in TiO₂ Nanoparticle Suspensions to Daphnia magna

Abstract:

The ecotoxicity of penta-BDE in nanosized TiO₂ (nTiO₂) water suspensions was examined using a method developed based on the standard OECD Guidelines for the Testing of Chemicals ( i . e . OECD 202). The water flea (Daphnia magna) were used as the testing organisms. The results showed that penta-BDE alone has no acute toxicities to the testing organisms, but exhibited acute toxicities in nTiO₂ water suspensions. The 72 h NOEC of penta-BDE with 1 mg L^-1 nTiO2 to D. magna was calculated as less than 0.1 μg L^-1 , and the 72 h EC₅₀ and LC₅₀ are 50.2 μg L^-1 (95% CI: 0.872.45) and 100.2 μg L^-1(95% CI: 1.222.86), respectively. The toxicity results indicate that nanoparticles might pose potential environmental impact through increasing toxicities of organic pollutants. Further research on the joint ecotoxicity of nanoparticles and organic pollutants is warranted in order to minimize the adverse ecological effects and human health risk of nanotechnology development.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

261-265

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.261

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Online since:

December 2013

Authors:

Sheng Yan Tian*, Yi Nan Gao, Chun Zheng Song

Keywords:

Daphnia, Ecotoxicity, Nanomaterial, Penta-BDE, TiO₂

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