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http://dx.doi.org/10.9719/EEG.2016.49.5.411

Preliminary Study on Seed Germination and Bacterial Bioluminescence for Assessing the Toxicity of Domestic Bentonites  

Kong, In Chul (Department of Environmental Engineerting, Yeungnam University)
Lee, Mun Hee (Department of Environmental Engineerting, Yeungnam University)
Jang, Hyun Jin (Department of Environmental Engineerting, Yeungnam University)
Lee, Eun Jin (Department of Environmental Engineerting, Yeungnam University)
Ko, Kyung Seok (Korea Institute of Geoscience & Mineral Resources (KIGAM))
Kang, Il Mo (Korea Institute of Geoscience & Mineral Resources (KIGAM))
Publication Information
Economic and Environmental Geology / v.49, no.5, 2016 , pp. 411-415 More about this Journal
Abstract
In this preliminary study, we assessed the toxicity of domestic bentonites using environmental toxicity testings of seed germination and bacterial bioluminescence. In cases of tested bulk bentonite samples, following ranges of toxicity were observed: -3 ~ 95% bioluminescence, 7.1 ~ 92.1% Lactuca germination. Similar results were also observed among tested other seeds, except seed Raphanus. No significant correlations between toxicity and metals contents of bentonite extractants were observed throughout this investigation. Interestingly, distinct different effects were observed according to bentonite colors (blue $67{\pm}8.7%$, pink $27{\pm}10.4%$, brown $58{\pm}14.5%$).
Keywords
bentonite; toxicity; bioluminescence; seed germination; food and drug;
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