农业环境科学学报2018，Vol.37Issue(4)：680-687,8.DOI:10.11654/jaes.2017-1643
北太平洋公海中心渔场海域放射性核素137Cs的生态环境监测与风险评估
Ecological environment monitoring and risk assessment of radioactive element 137Cs in central fishing grounds of the North Pacific Ocean
摘要
Abstract
Marine biological samples were taken in the central fishing grounds of the North Pacific high seas from 2011—2013,in order to understand the impact of Japan's Fukushima nuclear leakage on the high seas fisheries and develop the natural fishery industry in the North Pacific Ocean.The samples were dominated by neon flying squid(Ommastrephes bartramii).The result showed that radionuclide 137Cs was detected in all samples by a gamma ray spectrometer.Additionally,cross-check analysis was carried out among different species,organs and tissues.Analysis of the distribution of nuclides in marine organisms in the North Pacific Ocean and an assessment of their risk to fisheries were carried out.There were a large number of samples collected from 2011—2012.The specific activity of 137Cs was higher than the base in all samples.In 2011,the activity range of the 137Cs nuclides was 0.05~6.21 Bq·kg-1,while in 2012 it was 0.02~0.46 Bq·kg-1.In 2013,there were only two types of samples collected,and the range of activity was 0~0.37 Bq·kg-1.The quality activity of the nuclides in each nutrient-grade organism was normalized,and its average value was 0.49 Bq·kg-1over three years.The average value in neon flying squid was 0.18 Bq·kg-1,while that in small fishes was 0.10 Bq·kg-1.The mass activity of nuclides showed an inverted pyramid distribution.The quality ac-tivity level of the nuclides during the three years of surveying did not exceed the concentration restriction of radionuclide quality in Chinese food,nor the standard line of general levels.At present,the risk assessment of radioactive element 137Cs shows that the quality activity of nu-clides is in a relatively safe range,but also that follow-up monitoring is needed.关键词
北太平洋公海/中心渔场/核素/生态环境监测/风险评估Key words
North Pacific high seas/central fishing grounds/nuclide/ecological environment monitoring/risk assessment分类
资源环境引用本文复制引用
唐峰华,张胜茂,吴祖立,崔雪森..北太平洋公海中心渔场海域放射性核素137Cs的生态环境监测与风险评估[J].农业环境科学学报,2018,37(4):680-687,8.基金项目
科技部"十二五"科技支撑计划项目(2013BAD13B01) （2013BAD13B01）
中央级公益性科研院所基本科研业务费专项资助项目(2016Z01-03) （2016Z01-03）
河口海岸学国家重点实验室开放基金资助项目(SKLEC201206)The Ministry of Science and Technology Support Project"12th Five-Year"(2013BAD13B01) （SKLEC201206）
The Fundamental Research Funds for the Central Public Welfare Research Institute(2016Z01-03) （2016Z01-03）
The Open Research Fund of State Key Laboratory of Estuarine and Coastal Research(SKLEC201206) （SKLEC201206）
