Next Article in Journal
Spatial Effects of Environmental Pollution on Healthcare Services: Evidence from China
Next Article in Special Issue
Insights Gained from an Approximate Analytical Solution of the Evaporation Model Used by ConsExpo Web
Previous Article in Journal
Educational Intervention to Improve Citizen’s Healthcare Participation Perception in Rural Japanese Communities: A Pilot Study
Previous Article in Special Issue
Microbial Diversity Dynamics in a Methanogenic-Sulfidogenic UASB Reactor
Article

Groundwater Quality in Agricultural Lands Near a Rapidly Urbanized Area, South China

by 1,2, 1 and 1,2,*
1
School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
2
Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
*
Author to whom correspondence should be addressed.
Academic Editor: Daniela Varrica
Int. J. Environ. Res. Public Health 2021, 18(4), 1783; https://doi.org/10.3390/ijerph18041783
Received: 7 January 2021 / Revised: 5 February 2021 / Accepted: 8 February 2021 / Published: 12 February 2021
(This article belongs to the Collection Environmental Chemistry and Technology)
Understanding the groundwater quality and its factors is a key issue in the context of the use and protection of groundwater resources in agricultural areas near urbanized areas. This study assessed the groundwater quality in agricultural areas in the Pearl River Delta (PRD) by a fuzzy synthetic evaluation method and determined the main factors controlling the groundwater quality by principal component analysis (PCA). Results showed that approximately 85% of groundwater sites in agricultural lands in the PRD were good-quality (drinkable). Drinkable groundwater was 95% and 80% in fissured aquifers and porous aquifers, respectively. Poor-quality groundwater in porous aquifers was controlled by four factors according to the PCA, including the seawater intrusion; the lateral recharge and irrigation of surface water and geogenic sources for As, Fe, NH4+, and Mn; the wastewater infiltration; and the geogenic sources for iodide. By contrast, another four factors, including the infiltration of wastewater and agricultural fertilizers, the geogenic sources for heavy metals, the geogenic sources for iodide, and the irrigation of contaminated river water, were responsible for the poor-quality groundwater in fissured aquifers. Therefore, in the future, the groundwater protection in agricultural lands in the PRD should be strengthened because the majority of groundwater in these areas was good-quality and suitable for drinking and agricultural purposes. In addition, poor-quality groundwater in agricultural lands in the PRD was a small proportion and negligible because the factors for poor-quality groundwater are complicated. View Full-Text
Keywords: groundwater quality; agricultural areas; Pearl River Delta; wastewater infiltration; geogenic sources groundwater quality; agricultural areas; Pearl River Delta; wastewater infiltration; geogenic sources
Show Figures

Figure 1

MDPI and ACS Style

Liu, L.; Qi, S.; Wang, W. Groundwater Quality in Agricultural Lands Near a Rapidly Urbanized Area, South China. Int. J. Environ. Res. Public Health 2021, 18, 1783. https://doi.org/10.3390/ijerph18041783

AMA Style

Liu L, Qi S, Wang W. Groundwater Quality in Agricultural Lands Near a Rapidly Urbanized Area, South China. International Journal of Environmental Research and Public Health. 2021; 18(4):1783. https://doi.org/10.3390/ijerph18041783

Chicago/Turabian Style

Liu, Lingxia, Shihua Qi, and Wenzhong Wang. 2021. "Groundwater Quality in Agricultural Lands Near a Rapidly Urbanized Area, South China" International Journal of Environmental Research and Public Health 18, no. 4: 1783. https://doi.org/10.3390/ijerph18041783

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop