Acute Toxicity Comparison of Single-Walled Carbon Nanotubes in Various Freshwater Organisms

被引：24

作者：

Sohn, Eun Kyung ^{[1
]}

Chung, Young Shin ^{[1
]}

Johari, Seyed Ali ^{[2
]}

Kim, Tae Gyu ^{[1
]}

Kim, Jin Kwon ^{[1
]}

Lee, Ji Hyun ^{[1
]}

Lee, Yong Hwa ^{[1
]}

Kang, Sung Wook ^{[3
]}

Yu, Il Je ^{[1
]}

机构：

[1] Hoseo Univ, Inst Nanoprod Safety Res, Asan 336795, South Korea

[2] Univ Kurdistan, Fac Nat Resources, Dept Fisheries, Kurdistan 6617715175, Iran

[3] Korea Conform Labs, Toxic Evaluat Team, Inchon 406840, South Korea

来源：

BIOMED RESEARCH INTERNATIONAL | 2015年 / 2015卷

基金：

新加坡国家研究基金会;

关键词：

NANOMATERIALS;

D O I：

10.1155/2015/323090

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

While the commercialization of single-walled carbon nanotubes (SWCNTs) is rapidly expanding, the environmental impact of this nanomaterial is not well understood. Therefore, the present study evaluates the acute aquatic toxicity of SWCNTs towards two freshwater microalgae (Raphidocelis subcapitata and Chlorella vulgaris), a microcrustacean (Daphnia magna), and a fish (Oryzias latipes) based on OECD test guidelines (201, 202, and 203). According to the results, the SWCNTs inhibited the growth of the algae R. subcapitata and C. vulgaris with a median effective concentration (EC50) of 29.99 and 30.96mg/L, respectively, representing "acute category 3" in the Globally Harmonized System (GHS) of classification and labeling of chemicals. Meanwhile, the acute toxicity test using O. latipes and D. magna did not show any mortality/immobilizing effects up to a concentration of 100.00 mg/L SWCNTs, indicating no hazard category in the GHS classification. In conclusion, SWCNTs were found to induce acute ecotoxicity in freshwater microalgae, yet not in D. magna and medaka fish.

引用

页数：7

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