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为了解天津市居民饮用水总α、总β放射性水平,于2010年采集市政供水水源水、出厂水、管网水和九个区县的深井水共126个样品,按照GB 5749—2006《生活饮用水卫生标准》监测总α、总β放射性活度浓度。监测结果均低于国家标准限值。提示对部分水样总α和总β放射性水平接近国家标准限值的采样点,应进一步加强监测,确保饮水安全。
In order to understand the total α and total β radioactivity of drinking water in Tianjin, 126 samples of municipal water supply, ex-factory water, pipe network water and deep well water in nine districts and counties were collected in 2010, and according to GB 5749-2006 Drinking water health standards "to monitor the total α, total β radioactivity concentration. Monitoring results are lower than the national standard limit. It is suggested that for sampling points where the total α and total β radioactivity levels of some water samples are close to the national standard limits, monitoring should be further strengthened to ensure drinking water safety.