Email this article Groundwater Selenium Level and its Enrichment Dynamics in Seawater Intrusion Area along the Northern Coastal Zones of Shandong Province, China
- Authors: Chen Q.1, Wei J.1, Jia C.2, Wang H.3, Shi L.1, Liu S.3, Ning F.3, Ji Y.1, Dong F.1, Jia Z.1, Hao D.1
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Affiliations:
- Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Science and Engineering, Shandong University of Science and Technology
- College of Science, China University of Petroleum (East China)
- The Third Exploration Team of Shandong Coalfield Geologic Bureau
- Issue: Vol 57, No 11 (2019)
- Pages: 1236-1242
- Section: Short Communications
- URL: https://journals.rcsi.science/0016-7029/article/view/156378
- DOI: https://doi.org/10.1134/S0016702919110065
- ID: 156378
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Abstract
The variation of groundwater properties caused by seawater intrusion, such as OH–, TDS, \({\text{SO}}_{4}^{{2 - }},\) can potentially affect the groundwater Se levels. But there are no researches detailing the mechanism of groundwater selenium characteristics in seawater intrusion areas along coastal zones. Buzhuang town has been selected for study and groundwater is sampled to discuss the behavior of groundwater selenium with the intrusion of seawater. The groundwater Se levels range from 1.43 to 15.60 µg/L, with an average of 6.23 µg/L. All are within the limit of 10 µg/L except Wanglu village, but the local groundwater Se levels in 8 villages exceed the chronic criterion of 5 µg/L, and the Se levels in local groundwater are higher than those in the supplied water which has a non-seawater source. The groundwater Se levels have been shown to be elevated by seawater intrusion. The groundwater Se levels are positively correlated with Cl–, TDS, Br–, Na+, Mg2+, \({\text{SO}}_{4}^{{2 - }},\) Ca2+ and Fe and negatively correlated with pH. Ion competition effects and the Na-Mg-sulfate minerals play an important role in the adsorption and desorption for \({\text{SeO}}_{3}^{{2 - }}\) and \({\text{SeO}}_{4}^{{2 - }}\), which are the important dynamic species for groundwater selenium enrichment. However, Ca and Fe ions have less contribution to groundwater Se variation because of the lower affinity for \({\text{SeO}}_{3}^{{2 - }}\) and \({\text{SeO}}_{4}^{{2 - }}\) and lesser content in groundwater of seawater intrusion areas.
About the authors
Qiao Chen
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Author for correspondence.
Email: qchen5581@163.com
China, Qingdao, 266590
Jiu-Chuan Wei
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Author for correspondence.
Email: jcwee@126.com
China, Qingdao, 266590
Cui-Ping Jia
College of Science, China University of Petroleum (East China)
Author for correspondence.
Email: jiacuiping@upc.edu.cn
China, Qingdao, 266580
Hong-Mei Wang
The Third Exploration Team of Shandong Coalfield Geologic Bureau
Email: jiacuiping@upc.edu.cn
China, Tai’an, 271000
Long-Qing Shi
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Email: jiacuiping@upc.edu.cn
China, Qingdao, 266590
Song-Liang Liu
The Third Exploration Team of Shandong Coalfield Geologic Bureau
Email: jiacuiping@upc.edu.cn
China, Tai’an, 271000
Fang-Zhu Ning
The Third Exploration Team of Shandong Coalfield Geologic Bureau
Email: jiacuiping@upc.edu.cn
China, Tai’an, 271000
Yu-Han Ji
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Email: jiacuiping@upc.edu.cn
China, Qingdao, 266590
Fang-Ying Dong
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Email: jiacuiping@upc.edu.cn
China, Qingdao, 266590
Zhi-Wen Jia
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Email: jiacuiping@upc.edu.cn
China, Qingdao, 266590
De-Cheng Hao
Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Earth Scienceand Engineering, Shandong University of Science and Technology
Email: jiacuiping@upc.edu.cn
China, Qingdao, 266590
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