Total α and β radioactivity levels of source water in two areas of Shanghai from 2012 to 2022
Journal Title: Shanghai Journal of Preventive Medicine - Year 2024, Vol 36, Issue 6
Abstract
Objective The purpose was to understand the background level of environmental radioactivity in the surrounding area of Qinshan Nuclear Power Plant and accumulate historical monitoring data of radioactivity in the environment， in order to detect and deal with radioactive risk in water sources earlier.Methods According to the requirements of the "Shanghai environmental radioactivity background monitoring plan"， the area 1 closest to the Qinshan Nuclear Power Plant was selected as the monitoring point， and the area 2 far from the nuclear power plant was selected as the blank control point. Considering the seasonal characteristics of high water， low water， and normal water periods， the establishment of sampling points， and population density and other comprehensive factors， a model of sampling from the disease control centers in these two regions was established， with the supervision and quality control by Shanghai disease control center. The water samples were collected once a quarter， with a sampling volume of 5 L each time， and the samples were sent to Shanghai Municipal Center for Disease Control and Prevention for processing and measurement. Since 2012， water samples from the two sources have been collected for more than ten years for the total α and total β monitoring of radioactive levels.Results 2012‒2022 Area 1 total α radioactivity， total β radioactivity concentration ranges were 1.83×10-2‒3.93 ×10-2 Bq·L-1 and 6.05×10-2‒23.73 ×10-2 Bq·L-1， respectively. Total α radioactivity and total β radioactivity concentration ranges in Area 2 were 1.63×10-2‒4.46 ×10-2 Bq·L-1， and 9.60×10-2‒25.33 ×10-2 Bq·L-1，respectively.Conclusion The radioactive levels in the source water of Area 1 and Area 2 are within the normal background range， which meets the requirements of the "Standard test methods for drinking water - radioactive indicators" （GB/T 5750.13‒2006）.
Authors and Affiliations
HUANG Minpeng,QIAN Aijun,LUO Fajian,GAO Linfeng,
Keywords
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