生态与农村环境学报2011，Vol.27Issue(4)：95-99,5.
蓝田县农村居民饮用地下水中硝态氮污染及健康风险评价
Nitrate Nitrogen Pollution of Drinking Groundwater and Its Health Risk Assessment for Rural Residents in Lantian County, China
摘要
Abstract
Based on the measurement of nitrate nitrogen ( N03 -N) contents of the groundwater, which is the source of drinking water of the rural residents in the northwest region of Lantian County, health risk assessment of the pollution was performed using the health risk assessment model available. The measurement shows that NO3~ -N concentration in the groundwater was on average 12. 00 mg · L in the low-water season ( March) and 15. 81 mg · L-1 in the high-water season ( September) and some of the water samples even exceeded the upper limit of GB 5749-2006 ( National Standard for Hygiene of Drinking Water) in N03~ -N content. NO3~ -N concentration in the groundwater decreased significantly with the depth of the wells, being the highest in the water within the depth of 0 - 20 m and much lower in the water below the depth of 60 m. The health risk assessment shows that the drinking water in Lantian County is higher in health risk in the Ba river valley and the tablelands in the southern part than in the mountainous area in the north.关键词
饮用地下水/硝态氮污染/健康风险评价/农村Key words
drinking groundwater/ nitrate nitrogen pollution/ health risk assessment/ rural分类
资源环境引用本文复制引用
罗大成,卢新卫,任春辉,李晓雪..蓝田县农村居民饮用地下水中硝态氮污染及健康风险评价[J].生态与农村环境学报,2011,27(4):95-99,5.基金项目
教育部新世纪优秀人才支持计划(NCET-05-0861) （NCET-05-0861）
中央高校基本科研业务费专项(GK200901008) （GK200901008）
