| 珠江口、大鹏湾和大亚湾海域海水及沉积物中放射性核素水平 |
| |
| 引用本文： | 丁敏霞,刘国卿,冯江平,时劲松,罗奇,郭志明.珠江口、大鹏湾和大亚湾海域海水及沉积物中放射性核素水平[J].辐射防护,2017,37(6):453-458. |
| |
| 作者姓名： | 丁敏霞 刘国卿 冯江平 时劲松 罗奇 郭志明 |
| |
| 作者单位： | 1.深圳大学物理与能源学院 核技术应用研究所,广东 深圳 518060; 2.深圳市环境监测中心站,广东 深圳 518049; 3.中国辐射防护研究院,太原 030006 |
| |
| 基金项目： | 深圳市科技研发资金，深圳市人居环境委专项资金 |
| |
| 摘 要： | 本文报道了珠江口、大鹏湾和大亚湾海域海水及沉积物中放射性核素水平。经2013年9月秋季航次和2014年4月冬季航次取样监测,珠江口、大鹏湾和大亚湾海域海水中226Ra、232Th、40K和137Cs的放射性活度浓度分别为12.8～42.6 Bq/m3(平均21.7±7.3 Bq/m3)、3.2～26.6 Bq/m3 (平均11.8±6.5 Bq/m3)、529.7～974.1 Bq/m3(平均820.6±120.0 Bq/m3)和0.5～3.8 Bq/m3 (平均2.3±1.0 Bq/m3);沉积物中226Ra、232Th、40K和137Cs的放射性活度浓度分别为16.9～35.0 Bq/kg (平均27.9±7.2 Bq/kg)、22.0～59.8 Bq/kg (平均36.5±11.1 Bq/kg)、326.2～621.0 Bq/kg(平均456.2±100.1 Bq/kg)和0.3～3.5 Bq/kg(平均1.5±0.7 Bq/kg);海水及沉积物中110mAg的含量均低于检测限。珠江口、大鹏湾和大亚湾海域海水及沉积物中放射性核素水平与我国其它海域相当。
|
| 关 键 词： | 放射性核素 海水 沉积物 珠江口 大鹏湾 大亚湾 |
| 收稿时间： | 2016-12-21 |
Study on radionuclide concentrations in seawater and sediments from the Pearl River estuary,Dapeng Bay and Daya Bay |
| |
| Ding Minxia,Liu Guoqing,Feng Jiangping,Shi Jinsong,Luo Qi,Guo Zhiming.Study on radionuclide concentrations in seawater and sediments from the Pearl River estuary,Dapeng Bay and Daya Bay[J].Radiation Protection,2017,37(6):453-458. |
| |
| Authors: | Ding Minxia Liu Guoqing Feng Jiangping Shi Jinsong Luo Qi Guo Zhiming |
| |
| Affiliation: | 1. Institute of Applied Nuclear Technology, College of Physics and Energy, Shenzhen University, Guangdong Shenzhen 518060; 2. Shenzhen Environmental Protection Monitoring Station, Guangdong Shenzhen 518049; 3. China Institute for Radiation Protection, Taiyuan 030006 |
| |
| Abstract: | The concentrations of radionuclides in seawater and sediment samples from the Pearl River Estuary,Dapeng Bay and Daya Bay in Shenzhen were reported.During the cruises in September 2013 and April 2014,seawater and sediment samples were collected and analyzed for 226Ra,232Th,40K,137Cs and 110mAg.The activity concentrations of 226Ra,232Th,40K and 137Cs in the seawater were 12.8-42.6 Bq/m3 (averaged 21.7± 7.3 Bq/m3),3.2-26.6 Bq/m3 (averaged 11.8 ± 6.5 Bq/m3),529.7-974.1 Bq/m3 (averaged 820.6 ±120.0 Bq/m3),and 0.5-3.8 Bq/m3 (averaged 2.3-± 1.0 Bq/m3),respectively.They were 16.9-35.0Bq/kg (averaged 27.9 ± 7.2 Bq/kg),22.0-59.8 Bq/kg (averaged 36.5-± 11.1 Bq/kg),326.2-621.0Bq/kg (averaged 456.2 ± 100.1 Bq/kg),and 0.3-3.5 Bq/kg (averaged 1.5 ± 0.7 Bq/kg) in the sediment.The activity concentrations of 110mAg were below the detection limit for all the samples.The concentration levels of these radionuclides in this area were about the same as other near-shore areas in China. |
| |
| Keywords: | radionuclide seawater sediment Pearl River estuary Dapeng Bay Daya Bay |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《辐射防护》浏览原始摘要信息 |
|
点击此处可从《辐射防护》下载全文 |
|
