期刊论文

The Specific Activity and Balance＇s Measuring of 226Ra, 210Pb and 210po in Hengyang Specific Water Environment

Shan, J.

中文

核电子学与探测技术

0258-0934

2018

38

1

43-48and59

10.3969/j.issn.0258-0934.2018.01.009

国家自然科学基金（11375083）资助；

本校为第一且通讯机构

对湘江衡阳段四条主要支流及湘江上游一退役铜矿水环境中226 Ra、210 Pb、210 Po进行了研究分析.结果表明,样品对应的衡阳地区湘江四大支流226 Ra、210 Pb、210 Po比活度范围分别为4.8～43.3 mBq/L、9.6～26.5 mBq/L和1～5 mBq/L,其中舂陵水、蒸水样点值偏高,丰水期测量值普遍高于枯水期;退役铜矿区域水环境中226 Ra、210 Pb和210 Po比活度范围分别为3～68.5 mBq/L、17～33.6 mBq/L、2.3～8.8 mBq/L,尾矿渗出水经小溪和小河稀释后,与湘江值相当.所测水域中,总体210 Pb相对226 Ra呈现出过剩现象;210 Po/210 Pb比值范围为0.098～0.283,与雨水中比值相符.

The results show that the corresponding sample's concentration respectively are 4.8~43.3 mBq/L,9.6~26.5 mBq/L and 1~5 mBq/L in the four major tributaries on Hengyang section of Xiang river. The level of Chongling River and Zheng River are relatively higher, and the values in wet season are generally higher than dry season. The radioactivity ratio ranges in the retired copper mine area are 3~68.5 mBq/L, 17~33.6 mBq/L and 2.3~8.8 mBq/L. The levels in the tailing effusion drainage exit could be the same as the value of Xiang River after brooks fle...