干旱区生态环境知识资源中心(Arid): Assessment of hydrochemical backgrounds and threshold values of groundwater in a part of desert area, Rajasthan, India

Arid

DOI	10.1016/j.envpol.2020.115150
	Assessment of hydrochemical backgrounds and threshold values of groundwater in a part of desert area, Rajasthan, India
	Rahman, Abdur; Tiwari, K. K.; Mondal, N. C.
通讯作者	Mondal, NC
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2020
卷号	266
英文摘要	Natural background levels (NBLs) and threshold values (TVs) are crucial parameters for identification and the quantification of groundwater pollution, and the evaluation of pollution control measures. The cumulative probability distribution technique was used for the evaluation of NBLs for 36 samples collected during two climate conditions in the part of the desert area from Rajasthan, India. The NBLs for Na+, Cl-, SO42-, HCO3-, NO3- and F- ions were assessed and compared with the natural and anthropogenic processes. The TVs were also calculated for Na+, Cl-, SO42-, HCO3-, NO3- and F- ions, and compared with the drinking limits of the Bureau of Indian Standards. Additionally, the pollution percentage (%) at the individual well was estimated and identified the polluted zones. Results indicate that most of the polluted areas were situated in the southern part, which was influenced by the natural and anthropogenic factors. The sodium concentrations above the TVs, in indicating the saline nature of water. Chloride threshold value above the drinking water limit was mainly observed in the dry season, related to intensive evaporation and industrial waste, which leads to groundwater quality degradation. The NO3- concentration (similar to 56% samples) above the TVs indicates extensive use of nitrate fertilizers and sewage effluent. The values of total dissolved solids (TDS) shows the suspicious scenario as about 84% of the samples in the dry period and about 89% in the wet season exceeding the drinking limit. Assessment of background concentrations and threshold values on regional and local scale assigns the basis for the identification of groundwater pollution, and helpful for better water quality guidelines to protecting of water resources. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Hydrochemistry Natural background Threshold value Pollution Desert area Rajasthan
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000571442500003
WOS关键词	IDENTIFICATION ; RECHARGE ; MANAGEMENT ; CHEMISTRY ; ELEMENTS ; AQUIFER ; QUALITY ; NITRATE ; FIELDS ; BASIN
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326408
作者单位	[Rahman, Abdur; Mondal, N. C.] Acad Sci & Innovat Res AcSIR NGRI, Hyderabad, Telangana, India; [Tiwari, K. K.] Natl Inst Technol NIT, Garhwal, Uttarakhand, India; [Rahman, Abdur; Mondal, N. C.] CSIR Natl Geophys Res Inst, Earth Proc Modeling Grp, Hyderabad, India
推荐引用方式 GB/T 7714	Rahman, Abdur,Tiwari, K. K.,Mondal, N. C.. Assessment of hydrochemical backgrounds and threshold values of groundwater in a part of desert area, Rajasthan, India[J],2020,266.
APA	Rahman, Abdur,Tiwari, K. K.,&Mondal, N. C..(2020).Assessment of hydrochemical backgrounds and threshold values of groundwater in a part of desert area, Rajasthan, India.ENVIRONMENTAL POLLUTION,266.
MLA	Rahman, Abdur,et al."Assessment of hydrochemical backgrounds and threshold values of groundwater in a part of desert area, Rajasthan, India".ENVIRONMENTAL POLLUTION 266(2020).