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Barium concentrations and speciation in surface waters collected from an active barium mining area in Guizhou Province, southwestern China
Lu, Qinhui; Xu, Xiaohang; Xu, Zhidong; Liang, Longchao
2018
发表期刊Environmental Science and Pollution Research
卷号25期号:8页码:7608–7617
摘要

Barium (Ba) is a toxic element and can cause serious health effects. Humans have experienced increased exposure to Ba due to its intensive usage in industrial areas and daily life. Anthropogenic activities of Ba mining and the manufacture of Ba containing products introduce the element into surrounding areas, posing environmental concerns. Concentrations of total Ba (TBa) and dissolved Ba (DBa) in water samples collected from active Ba mines in Tianzhu, east Guizhou Province, southwestern China were measured to show the regional dispersion of Ba contamination. Aqueous Ba species in water were calculated using the PHREEQC program. The results showed that TBa and DBa concentrations ranged from 6.7 to 483.1 μg/L and from 7.5 to 222.7 μg/L, respectively. TBa concentrations presented a high average value of 126.6 μg/L and greatly exceeded the reported common value of 10 μg/L Ba in surface water set by the Ministry of Environment Protection of China. PHREEQC results indicated that Ba species in water were present as Ba2+, BaSO4, BaHCO3, BaCO3, and BaOH+. The distribution of Ba species in water is controlled by pH and total organic carbon (TOC), and the lower pH (pH < 7) the higher the dissolved fractions. The log K d values (K d , dissolved-particulate distribution coefficients) varied from 2.41 to 6.32. Significant correlations were observed among Ba2+ and K+, Na+, Cl, NO3 , with Pearson correlation coefficients of 0.425, 0.531, 0.853, 0.612, and 0.329, respectively (p < 0.01). Elevated Ba concentrations in water indicated that the Ba contamination and its distribution pattern in local aquatic ecosystems are derived from Ba mining sites in the Tianzhu area.

关键词Barium Multivariate Statistical Analysis, Phreeqc Program, Mining Activities Species
学科领域地球化学
DOI10.1007/s11356-017-0963-5
收录类别SCI
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/7698
专题环境地球化学国家重点实验室
作者单位State Key Laboratory of Environmental Geochemistry, Institute of GeochemistryChinese Academy of SciencesGuiyangPeople’s Republic of China
第一作者单位中国科学院地球化学研究所
通讯作者单位中国科学院地球化学研究所
推荐引用方式
GB/T 7714
Lu, Qinhui,Xu, Xiaohang,Xu, Zhidong,et al. Barium concentrations and speciation in surface waters collected from an active barium mining area in Guizhou Province, southwestern China[J]. Environmental Science and Pollution Research,2018,25(8):7608–7617.
APA Lu, Qinhui,Xu, Xiaohang,Xu, Zhidong,&Liang, Longchao.(2018).Barium concentrations and speciation in surface waters collected from an active barium mining area in Guizhou Province, southwestern China.Environmental Science and Pollution Research,25(8),7608–7617.
MLA Lu, Qinhui,et al."Barium concentrations and speciation in surface waters collected from an active barium mining area in Guizhou Province, southwestern China".Environmental Science and Pollution Research 25.8(2018):7608–7617.
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