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

辐射防护 ›› 2017, Vol. 37 ›› Issue (6): 453-458.

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

丁敏霞^1,2, 刘国卿^1*, 冯江平², 时劲松², 罗奇¹, 郭志明³

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

收稿日期:2016-12-21 出版日期:2017-11-20 发布日期:2021-11-11
通讯作者: 刘国卿。E-mail:liugq@szu.edu.cn
作者简介:丁敏霞(1990—),女,2013年毕业于南华大学核技术专业,2016年硕士毕业于深圳大学粒子物理与原子核物理专业。E-mail:649069568@qq.com
基金资助:
深圳市科技研发资金(JCYJ20150324141711585);深圳市人居环境委专项资金(0851-1361S200C262)。

Study on radionuclide concentrations in seawater and sediments from the Pearl River estuary, Dapeng Bay and Daya Bay

Ding Minxia^1,2, Liu Guoqing¹, Feng Jiangping², Shi Jinsong², Luo Qi¹, Guo Zhiming³

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

Received:2016-12-21 Online:2017-11-20 Published:2021-11-11

摘要/Abstract

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

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—35.0 Bq/kg (averaged 27.9±7.2 Bq/kg), 22.0—59.8 Bq/kg (averaged 36.5±11.1 Bq/kg), 326.2—621.0 Bq/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.

Key words: radionuclide, seawater, sediment, Pearl River estuary, Dapeng Bay, Daya Bay

中图分类号:

TL75+1

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.

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.

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