摘要
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 ;
Objective To determine gross α and gross β radioactivity levels in drinking water and original water of Xinxiang city and make hygiene evaluation .Methods The 16 original water samples from Yellow river,23 purified water samples from waterworks, 8 water samples from the residents tap,8 water samples from 25-metre-deep well,7 water samples from 35-metre-deep well and 16 water samples from 80-metre-deep well are taken. The direct evaporation to dryness was adapted to measure gross α and gross β radioactivity specific activity ,the SAS Statistical Package and statistical methods such as t test were applied in stalistical analysis. Results The findings of investigation indicated that gross α and gross β radioactivity in drinking water and deeper underground water accorded with the national sanitary standard of drinking water for life,but gross α radioactivity level in surface underground water was higher than that of the national standard. Conclusion Tap water and deeper underground water can be used as drinking water ,of which radioactivity accords with the national standard , but the surface underground water is not fit for drinking.
出处
《新乡医学院学报》
CAS
2000年第1期34-36,共3页
Journal of Xinxiang Medical University
基金
新乡医学院大学生科研基金
关键词
饮用水
卫生标准
放射性调查
gross α radioactivity
gross β radioactivity
drinking water
national standard
