摘要
目的了解1995年—2019年兰州市生活饮用水和兰州段黄河水的放射性水平及不同时期放射性水平分布特点。方法依据国家标准GB/T 5750.13—2006对兰州市城关区生活饮用水、兰州段黄河水进行水样总放射性水平分析。结果1995年—2019年,兰州市城区生活饮用水和兰州段黄河水的总放射性水平均在GB 5749—2006《生活饮用水卫生标准》的范围之内,城区生活饮用水符合居民生活饮水要求。枯水期兰州市生活饮用水总α、β放射性水平平均值分别为0.041 Bq/L和0.086 Bq/L,兰州段黄河水总α、β放射性水平平均值分别为0.042 Bq/L和0.135 Bq/L;丰水期兰州市生活饮用水总α、β放射性水平平均值分别为0.054 Bq/L和0.120 Bq/L,兰州段黄河水总α、β放射性水平平均值分别为0.065 Bq/L和0.178 Bq/L。丰水期兰州市生活饮用水和兰州段黄河水总α、β放射性水平均显著高于枯水期(t值为2.663~7.281,P<0.05)。2013年—2019年,兰州市生活饮用水枯水期、丰水期水样残渣量平均值为0.7268 g和0.7452 g,兰州段黄河水枯水期、丰水期水样残渣量平均值为0.7675 g和0.8312 g,丰水期水样残渣重量显著高于枯水期(t=3.002,P<0.05)。结论兰州市生活饮用水、兰州段黄河水在枯水期、丰水期均未受到辐射污染,符合生活饮用水要求。
Objective To investigate the radioactive levels of drinking water in Lanzhou City and Yellow River water of Lanzhou Section from 1995 to 2019 as well as the distribution characteristics of radioactive levels in different periods.Methods According to national standard GB/T 5750.13—2006,the total radioactivity level of drinking water in Chengguan District of Lanzhou City and the Yellow River in Lanzhou section was analyzed.Results From 1995 to 2019,the total radioactivity level of urban drinking water and Yellow River water in Lanzhou section were within the scope of GB 5749—2006 Sanitary Standard of Drinking Water,and the urban drinking water met the requirement of residents.The total radioactivity levels ofαandβdrinking water in Lanzhou during the dry season were 0.041 Bq/L and 0.086 Bq/L,respectively.The radioactivity levels of the Yellow River in Lanzhou section are 0.042 Bq/L and 0.135 Bq/L,respectively.The radioactivity levels of drinking water in Lanzhou during the wet season were 0.054 Bq/L and 0.120 Bq/L respectively,and the radioactivity levels of the Yellow River water in Lanzhou section are 0.065 Bq/L and 0.178 Bq/L respectively.The radioactivity levels in drinking water of Lanzhou and the Yellow River in Lanzhou section during the wet season were significantly higher than those during the dry season(t=2.663-7.281,P<0.05).From 2013 to 2019,the average amount of water sample residua in Lanzhou drinking water were 0.7268 g and 0.7452 g,and the average amount of water sample residua in Lanzhou section of the Yellow River were 0.7675 g and 0.8312 g,and the weight of water sample residua was significantly higher than that in the dry season(t=3.002,P<0.05).Conclusion The drinking water of Lanzhou city and the Yellow River in Lanzhou section is not contaminated by radiation during the dry season and the high season,which meets the requirements of drinking water.
作者
王延俊
邬家龙
孙卫
王赟
杨海燕
王洁
WANG Yan-jun;WU Jia-long;SUN Wei;WANG Yun;YANG Hai-yan;WANG Jie(Gansu Provincial Center for Disease Control and Prevention,Lanzhou,Gansu 730000,China)
出处
《中国卫生检验杂志》
CAS
2021年第13期1625-1628,1633,共5页
Chinese Journal of Health Laboratory Technology
基金
国家自然科学基金项目(11765003)。
关键词
生活饮用水
黄河水
枯水期
丰水期
放射性水平
Drinking water
The Yellow River water
Dry season
Wet season
Radioactive level
