干旱区生态环境知识资源中心(Arid): Assessment of groundwater quality in a Brazilian semiarid basin using an integration of GIS, water quality index and multivariate statistical techniques

Arid

DOI	10.1016/j.jhydrol.2021.126346
	Assessment of groundwater quality in a Brazilian semiarid basin using an integration of GIS, water quality index and multivariate statistical techniques
	Silva, M., I; Goncalves, A. M. L.; Lopes, W. A.; Lima, M. T., V; Costa, C. T. F.; Paris, M.; Firmino, P. R. A.; De Paula Filho, F. J.
通讯作者	De Paula, FJ (corresponding author), Agr Sci & Biodivers Ctr, Reg Sustainable Dev Program PRODER, Rua Icaro Moreira de Sousa 126, BR-63130025 Crato, Ceara, Brazil.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	598
英文摘要	Globally speaking, groundwater is the predominant source of water for populations living in arid and semiarid regions. The tools used to assess the quality of this resource contribute to the water security of the populations that depend on it. This study evaluated the quality of groundwater sampled from 22 monitored wells in the Araripe Sedimentary Basin (ASB), located in the Brazilian semiarid region. We used probability curves to identify the critical variables and a regional Water Quality Index (WQIR) to assess groundwater quality. The National Sanitation Foundation index (WQINSF) was adapted using multivariate statistical analyses. The Principal Component Analysis (PCA) was employed to determine the principal water quality parameters and their weights. GIS technology was used to build geospatial behavior maps for the hydrogeochemical variables. The results for the variables phosphorus, Nitrate-N, thermotolerant coliforms, pH, and turbidity exceeded the regulatory limits, mainly in areas affected by anthropogenic sources with an insufficient sewage network. Nitrate-N and turbidity had a marked seasonal behavior. The WQIR showed that the aquifer's waters can be classified mainly as Regular (18.2%) or Good (82.8%). The spatial behavior maps of the hydrogeochemical variables and the WQIR allow us to prioritize those areas requiring mitigation and monitoring actions. The water quality curves and the WQIR are important tools for the management and handling of aquifers. This study contributes to the assessment of water quality by policy makers and stakeholders, enabling the planning and management of groundwater resources.
英文关键词	Water quality index Groundwater quality Hydrogeochemistry Semiarid region Water security Water management
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000661813200122
WOS关键词	POLLUTION ; REGION ; STATE ; AREA
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368659
作者单位	[Silva, M., I; Lima, M. T., V; Costa, C. T. F.; Firmino, P. R. A.; De Paula Filho, F. J.] Agr Sci & Biodivers Ctr, Reg Sustainable Dev Program PRODER, Rua Icaro Moreira de Sousa 126, BR-63130025 Crato, Ceara, Brazil; [Goncalves, A. M. L.; Lopes, W. A.; Costa, C. T. F.; Firmino, P. R. A.; De Paula Filho, F. J.] Fed Univ Cariri, Sci & Technol Ctr, Av Ten Raimundo Rocha 1639,Cidade Univ, BR-63048080 Juazeiro Do Norte, Ceara, Brazil; [Paris, M.] Univ Nacl Litoral, Fac Engn & Water Sci, Ruta Nacl 168,Km 472,4, RA-3000 Santa Fe, Argentina
推荐引用方式 GB/T 7714	Silva, M., I,Goncalves, A. M. L.,Lopes, W. A.,et al. Assessment of groundwater quality in a Brazilian semiarid basin using an integration of GIS, water quality index and multivariate statistical techniques[J],2021,598.
APA	Silva, M., I.,Goncalves, A. M. L..,Lopes, W. A..,Lima, M. T., V.,Costa, C. T. F..,...&De Paula Filho, F. J..(2021).Assessment of groundwater quality in a Brazilian semiarid basin using an integration of GIS, water quality index and multivariate statistical techniques.JOURNAL OF HYDROLOGY,598.
MLA	Silva, M., I,et al."Assessment of groundwater quality in a Brazilian semiarid basin using an integration of GIS, water quality index and multivariate statistical techniques".JOURNAL OF HYDROLOGY 598(2021).