PDF(Pubmed)
Abstract：
Radioactivity monitoring around nuclear facilities is crucial to provide important baseline data for effective detection of radioactive leakage to the environment. We aim to establish a baseline study for monitoring radioactive levels of 90Sr and 137Cs around Sammen Nuclear Power Plant (SNPP) and to assess their associated health impact on surrounding residents.
In this study, we collected water and food samples around the SNPP from 2011 to 2020 and determined for 90Sr and 137Cs activity concentrations. We statistically analyzed the temporal trends of 90Sr and 137Cs and evaluated their radiation exposure to the local residents.
During this period, the activity concentrations of 90Sr and 137Cs varied within 1.2-9.9 mBq/L and 0.10-7.6 mBq/L in water, and 0.037-1.3 Bq/kg and 0.011-0.45 Bq/kg in food, respectively, with no significant seasonal variation trend.
All reported activity concentrations of 90Sr and 137Cs were significantly lower than the recommended value of WHO and Chinese national standards. There is no indication of notable radioactive release into the study area due to the operation of SNPP during 2018-2020. The annual effective doses (AEDs) from the ingestion of 90Sr and 137Cs in water and food were well below the international permissible limits, indicating the radiation exposure around SNPP during 2011-2020 was kept at a safe level.
In this study, we collected water and food samples around the SNPP from 2011 to 2020 and determined for 90Sr and 137Cs activity concentrations. We statistically analyzed the temporal trends of 90Sr and 137Cs and evaluated their radiation exposure to the local residents.
During this period, the activity concentrations of 90Sr and 137Cs varied within 1.2-9.9 mBq/L and 0.10-7.6 mBq/L in water, and 0.037-1.3 Bq/kg and 0.011-0.45 Bq/kg in food, respectively, with no significant seasonal variation trend.
All reported activity concentrations of 90Sr and 137Cs were significantly lower than the recommended value of WHO and Chinese national standards. There is no indication of notable radioactive release into the study area due to the operation of SNPP during 2018-2020. The annual effective doses (AEDs) from the ingestion of 90Sr and 137Cs in water and food were well below the international permissible limits, indicating the radiation exposure around SNPP during 2011-2020 was kept at a safe level.
摘要：
UNASSIGNED：核设施周围的放射性监测对于为有效检测放射性泄漏到环境中提供重要的基线数据至关重要。我们旨在建立一项基线研究，以监测Sammen核电站（SNPP）周围90Sr和137Cs的放射性水平，并评估其对周围居民的健康影响。
未经批准：在这项研究中，我们从2011年到2020年收集了SNPP周围的水和食物样本，并确定了90Sr和137Cs的活性浓度。我们统计分析了90Sr和137Cs的时间趋势，并评估了它们对当地居民的辐射暴露。
未经评估：在此期间，水中90Sr和137Cs的活性浓度在1.2-9.9mBq/L和0.10-7.6mBq/L范围内变化，和0.037-1.3Bq/kg和0.011-0.45Bq/kg的食物，分别,无明显的季节变化趋势。
UNASSIGNED：所有报告的90Sr和137Cs的活性浓度均显着低于WHO和中国国家标准的推荐值。由于SNPP在2018-2020年期间的运行，没有迹象表明研究区域有明显的放射性释放。摄入水和食物中90Sr和137Cs的年有效剂量（AED）远低于国际允许的限值，表明2011-2020年SNPP周围的辐射暴露保持在安全水平.
未经批准：在这项研究中，我们从2011年到2020年收集了SNPP周围的水和食物样本，并确定了90Sr和137Cs的活性浓度。我们统计分析了90Sr和137Cs的时间趋势，并评估了它们对当地居民的辐射暴露。
未经评估：在此期间，水中90Sr和137Cs的活性浓度在1.2-9.9mBq/L和0.10-7.6mBq/L范围内变化，和0.037-1.3Bq/kg和0.011-0.45Bq/kg的食物，分别,无明显的季节变化趋势。
UNASSIGNED：所有报告的90Sr和137Cs的活性浓度均显着低于WHO和中国国家标准的推荐值。由于SNPP在2018-2020年期间的运行，没有迹象表明研究区域有明显的放射性释放。摄入水和食物中90Sr和137Cs的年有效剂量（AED）远低于国际允许的限值，表明2011-2020年SNPP周围的辐射暴露保持在安全水平.
