Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province
The groundwater resource is crucial to the urbanization and industrialization in the Guangdong coastal area; the rapid development of Daya Bay has presented a challenge for the management of the groundwater quantity and quality. Therefore, a novel approach to hydrochemical analysis, which, combined...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/10/10/1394 |
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| author | Chenzhe Li Tengfei Fu Yushan Fu Zhenyan Wang Bin Li Chen Qi Guangquan Chen Xingyong Xu Hongjun Yu |
| author_facet | Chenzhe Li Tengfei Fu Yushan Fu Zhenyan Wang Bin Li Chen Qi Guangquan Chen Xingyong Xu Hongjun Yu |
| author_sort | Chenzhe Li |
| collection | DOAJ |
| description | The groundwater resource is crucial to the urbanization and industrialization in the Guangdong coastal area; the rapid development of Daya Bay has presented a challenge for the management of the groundwater quantity and quality. Therefore, a novel approach to hydrochemical analysis, which, combined with the health risk model and the water quality index (WQI), was used to explain the hydrochemistry characteristics and risks to human health of groundwater in the Guangdong coastal areas in addition to investigating the factors controlling groundwater quality. The results showed that the average concentration of total dissolved solids (TDS) in groundwater was 1935.26 mg/L and the quality of water was weakly alkaline. The dominant hydrochemical types of groundwater were identified to be Mg-HCO<sub>3</sub> and Na-Cl·HCO<sub>3</sub>. The main factor influencing the hydrochemical composition was rock weathering, while the result of principal component analysis (PCA) shows seawater intrusion and anthropogenic inputs also have an effect on the water quality. The conclusions of the water quality assessment indicated that most of the groundwater samples were acceptable for drinking. However, both WQI and the non-carcinogenic hazard quotient (HQ) values indicated unacceptable risks in any area of Maoming, Zhanjiang and Shantou, and, according to the hazard index (HI) value, children in the study area are at more danger to health risks than adults. It is suggested that both groundwater salinization and nitrate pollution should be paid attention to when improving groundwater quality and exploring the sustainable utilization of groundwater resources. |
| first_indexed | 2024-03-09T20:01:46Z |
| format | Article |
| id | doaj.art-4284ec2c04a24adf924c86a2e193e465 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T20:01:46Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-4284ec2c04a24adf924c86a2e193e4652023-11-24T00:43:34ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-09-011010139410.3390/jmse10101394Origin and Implications of Pollution in Coastal Groundwater of the Guangdong ProvinceChenzhe Li0Tengfei Fu1Yushan Fu2Zhenyan Wang3Bin Li4Chen Qi5Guangquan Chen6Xingyong Xu7Hongjun Yu8Key Laboratory of Coastal Science and Integrated Management, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, ChinaKey Laboratory of Coastal Science and Integrated Management, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, ChinaKey Laboratory of Coastal Science and Integrated Management, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, ChinaMOE Key Laboratory of Groundwater Circulation and Environment Evolution, School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, ChinaMarine Science Research Institute of Shandong Province, Qingdao 266071, ChinaKey Laboratory of Coastal Science and Integrated Management, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, ChinaKey Laboratory of Coastal Science and Integrated Management, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, ChinaFourth Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Beihai 536000, ChinaKey Laboratory of Coastal Science and Integrated Management, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, ChinaThe groundwater resource is crucial to the urbanization and industrialization in the Guangdong coastal area; the rapid development of Daya Bay has presented a challenge for the management of the groundwater quantity and quality. Therefore, a novel approach to hydrochemical analysis, which, combined with the health risk model and the water quality index (WQI), was used to explain the hydrochemistry characteristics and risks to human health of groundwater in the Guangdong coastal areas in addition to investigating the factors controlling groundwater quality. The results showed that the average concentration of total dissolved solids (TDS) in groundwater was 1935.26 mg/L and the quality of water was weakly alkaline. The dominant hydrochemical types of groundwater were identified to be Mg-HCO<sub>3</sub> and Na-Cl·HCO<sub>3</sub>. The main factor influencing the hydrochemical composition was rock weathering, while the result of principal component analysis (PCA) shows seawater intrusion and anthropogenic inputs also have an effect on the water quality. The conclusions of the water quality assessment indicated that most of the groundwater samples were acceptable for drinking. However, both WQI and the non-carcinogenic hazard quotient (HQ) values indicated unacceptable risks in any area of Maoming, Zhanjiang and Shantou, and, according to the hazard index (HI) value, children in the study area are at more danger to health risks than adults. It is suggested that both groundwater salinization and nitrate pollution should be paid attention to when improving groundwater quality and exploring the sustainable utilization of groundwater resources.https://www.mdpi.com/2077-1312/10/10/1394groundwaterhydrochemistryGuangdong coastal zoneseawater intrusionnitrate pollution |
| spellingShingle | Chenzhe Li Tengfei Fu Yushan Fu Zhenyan Wang Bin Li Chen Qi Guangquan Chen Xingyong Xu Hongjun Yu Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province Journal of Marine Science and Engineering groundwater hydrochemistry Guangdong coastal zone seawater intrusion nitrate pollution |
| title | Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province |
| title_full | Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province |
| title_fullStr | Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province |
| title_full_unstemmed | Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province |
| title_short | Origin and Implications of Pollution in Coastal Groundwater of the Guangdong Province |
| title_sort | origin and implications of pollution in coastal groundwater of the guangdong province |
| topic | groundwater hydrochemistry Guangdong coastal zone seawater intrusion nitrate pollution |
| url | https://www.mdpi.com/2077-1312/10/10/1394 |
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