摘要
目的分析南通市农村居民饮用水砷含量现状,为农村改水提供依据。方法 2009—2011年对南通市所有农村水厂于每年丰水期和枯水期至少采集1份水样,检测砷含量等项目,同时调查监测点水源类型、覆盖人口等信息。结果 2009、2010、2011年砷不合格率分别为7.2%,1.5%,1.0%。2010、2011年砷不合格率分别与2009年相比,差异均有统计学意义(P<0.05);其中不合格水样砷含量值最低为0.011 mg/L,最高值为0.063 mg/L。2010年砷不合格饮用水覆盖人口比例为4.02%,2009年为12.25%,差异有统计学意义(P<0.01);2011年为1.69%,与2010年相比,差异有统计学意义(P<0.05)。结论区域供水使农村居民饮用水水质有了明显改善,饮用水砷不合格的潜在危害正逐步减小。
[ Objective ] To analyze the current situation of arsenic content in drinking water of rural areas in Nantong City, provide the basis for rural water supply. [ Methods] During 2009-2011, the arsenic content and other items were detected in water samples collected from all rural waterworks in the wet season and dry season （ at least one water sample each season） every year in Nantong City. Meanwhile, the types of water source and population coverage of monitoring points were investigated. [ Results ] The unqualified rate of arsenic content in 2009, 2010 and 2011 was 7.2%, 1.5% and 1.0%, respectively. There were significant differences in the unqualified rate of arsenic content between 2010, 2011 and 2009 （P 〈 0.05 ）. Among the unqualified water samples, the minimum and maximum arsenic content was 0.011 mg/L and 0. 063 mg/L respectively. The proportion of population coverage of unqualified drinking water in 2010 and 2009 was 4.02% and 12.25% respectively, and the difference was statistically significant （ P 〈 0.01 ）. That in 2011 was 1.69%, and the difference between 2010 and 2011 was statistically significant [ P 〈 0.05 ）. [ Conclusion] The regional water supply can significantly improve the quality of drinking water in rural area, and the potential hazard caused by arsenic in drinking water is reduced gradually.
出处
《职业与健康》
CAS
2013年第3期363-364,共2页
Occupation and Health
关键词
农村
饮用水
砷
监测
Rural area
Drinking water
Arsenic
Monitoring
