Rainey Rochelle C, Harding Anna K
Office of International Research and Development, Snell Hall 400, Oregon State University, Corvallis OR 97331-1641, USA.
J Water Health. 2005 Sep;3(3):239-48. doi: 10.2166/wh.2005.036.
The study examined pH, turbidity and fecal contamination of drinking water from household water storage containers, wells and taps, and the Godawari River, and tested the effectiveness of solar disinfection (SODIS) in reducing levels of fecal contamination from household containers. The research was conducted in 40 households in a village 6 km outside the capital city of Kathmandu, Nepal. Three rounds of data were collected: a baseline in March 2002 followed by training in solar disinfection, and follow-ups in June and July 2002. Untreated drinking water was found to have levels of contamination ranging from 0 to too numerous to count fecal coliform CFU 100ml(-1). Source water was significantly more contaminated than water from the household storage containers. Wells were less contaminated than taps. SODIS reduced the level of contamination under household conditions. Turbidity from taps was above 30 NTU in the rainy season, above the maximum for effective solar disinfection. SODIS was routinely adopted by only 10% of the participating households during the study.
该研究检测了来自家庭储水容器、水井、水龙头以及戈达瓦里河的饮用水的pH值、浊度和粪便污染情况，并测试了太阳能消毒（SODIS）降低家庭容器粪便污染水平的有效性。该研究在尼泊尔加德满都首都以外6公里处的一个村庄的40户家庭中进行。收集了三轮数据：2002年3月的基线数据，随后进行太阳能消毒培训，以及2002年6月和7月的随访。未经处理的饮用水污染水平从0到每100毫升粪便大肠菌群CFU数多得无法计数。水源水的污染程度明显高于家庭储水容器中的水。水井的污染程度低于水龙头。SODIS在家庭条件下降低了污染水平。雨季时水龙头的浊度高于30 NTU，高于有效太阳能消毒的最大值。在研究期间，只有10%的参与家庭常规采用SODIS。
