期刊
ENVIRONMENTAL MONITORING AND ASSESSMENT
卷 185, 期 7, 页码 5627-5637出版社
SPRINGER
DOI: 10.1007/s10661-012-2972-7
关键词
Perchlorate; Groundwater; South India; Large-volume injection; Health risk
资金
- Japan Society of the Promotion of Science under Ministry of Education, Culture, Sports, Science [20221003, 24651010, 23710077]
- Environment Research and Technology Development Fund of the Japanese Ministry of the Environment [ZRFc-1201]
- Grants-in-Aid for Scientific Research [24651010, 23710077, 20221003] Funding Source: KAKEN
Perchlorate contamination was investigated in groundwater and surface water from Sivakasi and Madurai in the Tamil Nadu State of South India. Sensitive determination of perchlorate (LOQ = 0.005 mu g/L) was achieved by large-volume (500 mu L) injection ion chromatography coupled with tandem mass spectrometry. Concentrations of perchlorate were < 0.005-7,690 mu g/L in groundwater (n = 60), < 0.005-30.2 mu g/L in surface water (n = 11), and 0.063-0.393 mu g/L in tap water (n = 3). Levels in groundwater were significantly higher in the fireworks factory area than in the other locations, indicating that the fireworks and safety match industries are principal sources of perchlorate pollution. This is the first study that reports the contamination status of perchlorate in this area and reveals firework manufacture to be the pollution source. Since perchlorate levels in 17 out of 57 groundwater samples from Sivakasi, and none from Madurai, exceeded the drinking water guideline level proposed by USEPA (15 mu g/L), further investigation on human health is warranted.
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