Evaluation of mutagenic activity in the Nakdong river and advanced drinking water treatment processes

Title
Evaluation of mutagenic activity in the Nakdong river and advanced drinking water treatment processes
Author(s)
이순화이세한정원화[정원화]김태성[김태성]김윤희[김윤희]
Keywords
DISINFECTANTS; TOXICITY; REMOVAL; SAMPLES
Issue Date
201009
Publisher
SPRINGER
Citation
MOLECULAR & CELLULAR TOXICOLOGY, v.6, no.3, pp.287 - 293
Abstract
The previously proved method of Ames test was followed to measure the mutagenic activity. We used Salmonella typhimurium which has special gene mutation site with a single compound characteristic and histidine operon, and measured at the four (Gumi, Gangjung, Gachang, Hyunpung) branch points of Nakdong river for one year. We used Standard Methods for general water analysis with the items as water temperature, pH, DO, BOD, COD, KMnO(4), T-N, T-P, NH(3)-N, TOC, and AOX. Hyunpung branch, where the Nakdong and the Gumho river seems to be mixed enough, showed higher mutagenic activity than the other 3 branches. Every point of Nakdong river showed the TA98 mutagenic activity higher than 2, while TA100 was lower than 2. Most of the mutagenic activity was detected from methanol extracts. These results indicate that Nakdong river water quality is getting deteriorated, and that Nakdong river is influencing the mutagenic activity by Frame-shift type mutation and its polar substances. Correlations (R) between mutagenic activity and concentrations of water analysis items as TOC, AOX, BOD, COD, T-N, and T-P, resulted as 0.768, 0.787, 0.743, 0.688, 0.757, 0.628, respectively, and mutagenic activities of TA98 and TA100, after the treatment of ozone and activated carbon, decreased by chlorine pre-treatment. Finally, if the injected concentration of ozone was higher than 1.0 mL, TA98 and TA100 showed lower mutagenic activities than 2.
URI
http://hdl.handle.net/YU.REPOSITORY/23639http://dx.doi.org/10.1007/s13273-010-0039-9
ISSN
1738-642X
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공과대학 > 환경공학과 > Articles
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