Radioactivity analyses of food and drinking water in China following the Fukushima nuclear accident
10.3760/cma.j.issn.0254-5098.2012.02.005
- VernacularTitle:应对福岛核事故我国食品和饮用水的放射性监测
- Author:
Yanqin JI
;
Liangliang YIN
;
Qing TIAN
;
Baorong YUE
;
Xu SU
- Publication Type:Journal Article
- Keywords:
Fukushima nuclear accident;
131I;
Food;
Drinking water;
Radioactivity
- From:
Chinese Journal of Radiological Medicine and Protection
2012;32(2):125-128
- CountryChina
- Language:Chinese
-
Abstract:
Objective To summarize the analytical results of radioactivity in the food and drinking water nationwide following the Fukushima nuclear accident,and to evaluate its possible contamination to the public health in China.Methods According to the national standard methods and IAEA,FDA correlative references,the scheme was established on sampling and measurements in food and drinking water after the breakout of the accident.The quality control was requested on the sampling,analyses and data report.Results Trace artificial radioactive isotope of 131I was measured in spinach samples on 2 April 2011 in Beijing. Subsequently 131I was found in 10 kinds of growing leaves vegetables (open field)nationwide.The maximum detectable activity of 131I in vegetables was about 3.1 Bq/kg.Since 3 May 2011,the concentration of 131I has been below the detection limits.No artificial radionulide was detectable in all of milk,drinking water and marine products samples during March to December,2011.Conclusions The food and drinking water measurements in China following the Fukushima nuclear accident denoted that the minor amounts of 131I in vegetables might result in very low absorbed dose and induce no impact on human health.The maximum detectable activity of 131I in vegetables was close to that reported in European countries,and much less than that measured in China immediately after the Chernobyl accident in 1986.
