Analysis on the Dominant Factors of Groundwater Contamination in Balasu Area in Northern Shaanzi Province of China
This study investigated groundwater contamination in the Balasu Area in northern Shaanxi Province, one of largest energy resource centers in China. Groundwater samples collected from 128 locations in the Balasu area were analyzed and evaluated to establish the local groundwater quality zonings. Results indicate that groundwater in the Balasu area is contaminated, and the dominant contaminants in the groundwater are NO3 -1 and NO2 -. The concentration of NO3 -1 was detected at 0.19～2.2 mg/L and 26.50～127.00 mg/L in the samples collected up-gradient and down-gradient through Jiumaowan. Concentration of NO2 -was detected at 0.0 mg/L and 0.12 mg/L, respectively from the same samples. Zones I through IV, from non-polluted to seriously polluted, were identified for groundwater quality in the Balasu area. The analysis results indicate that the dominant factors of groundwater contamination in Balasu area are the townships daily wastewater discharge and the agriculture fertilization. The contamination caused by factories and mines is not obvious at present. Meanwhile, the low content of metal and heavy metal ions in groundwater at present can be used as the background value in the future research on the groundwater contamination.
Groundwater contamination nitrite Shaanzi Yulin Balasu area
Li Yunfeng Wan Weifeng Xu Yanjuan Sun Yibo Yu Xiangqian Zhang Maosheng
School of Environmental Science and Engineering Changan University Xian,Shaanxi,P.R China School of Environmental Science and Engineering Changan University Xian,Shaanxi,P.R China Yellow R Xian Institutes of Geology and Mineral Resources Xian,Shaanxi,P.R China
国际会议
北京
英文
1-5
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）