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目的 测定新乡市居民饮用水及其水源水的总α和总 β放射性 ,对新乡市饮用水的放射性水平做出卫生学评价。方法 对黄河水源水采样 16个 ,出厂水采样 2 3个 ,末梢水采样 8个 ,2 5m井水采样 8个 ,35m井水采样 7个 ,80m井水采样 16个 ,采用直接蒸干法测定总α和总 β放射性比活度 ,并采用SAS统计软件包 ,应用t检验等进行统计学处理。结果 新乡市自来水及较深层地下水的总α和总 β放射性均符合国家《生活饮用水卫生标准》 ,但浅层地下水的总α放射性超过国家标准。结论 新乡市自来水和较深层地下水的放射性水平符合国家标准 ,适宜做为饮用水 ;但新乡市浅层地下水则不宜做为饮用水
Objective To determine the total α and total β radioactivity of drinking water and its source water in Xinxiang City and make a hygiene evaluation on the radioactive level of drinking water in Xinxiang City. Methods Sixteen samples were collected from the Yellow River water source, 23 samples were collected from the factory water, 8 samples were collected from the peripheral water, 8 samples were collected from 25m well water samples, 7 samples from 35m well water samples and 16 samples from 80m well water samples. Total α and total β radioactivity, and using SAS statistical software package, t-test and other statistical analysis. Results The total α and total β radioactivity of tap water and deeper groundwater in Xinxiang City all met the national drinking water health standard, but the total α radioactivity in shallow groundwater exceeded the national standard. Conclusion The radioactive levels of tap water and deeper groundwater in Xinxiang City meet the national standards and are suitable for drinking water; however, shallow groundwater in Xinxiang City should not be used as drinking water