利用地理信息系统和水质指数评估印度卡纳塔克邦 Chikkaballapura Taluk 的地下水是否适于饮用

IF 0.4 Q4 ENVIRONMENTAL SCIENCES

Asian Journal of Water, Environment and Pollution Pub Date : 2023-11-27 DOI:10.3233/ajw230075

Sridhara Malur Krishnappa, Sadashivaiah Channabasavaiah, Kiran Dasalukunte Ananda

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引用次数: 0

摘要

本研究分析了地下水样本，以确定 2019 年 Chikkaballapura taluk（CBT）的地下水是否适合饮用。每年在季风前和季风后季节对地下水进行两次测试。12 个理化参数的结果被用于计算水质指数（WQI）。研究中使用 ArcGIS 绘制了氯化物、硝酸盐和氟化物的空间变化图。在城市地区，季风季节前的水质指数在 42.94 至 204 之间，季风季节后的水质指数在 62.67 至 153.93 之间。同样，在农村地区，雨季前的水质指数在 47.78 至 245.98 之间，雨季后的水质指数在 35.92 至 405.63 之间。水质指数结果表明，根据水质评级表，大多数水样属于劣质水。此外，结果还显示，在 Chikkaballapura 农村地区（CBR）和 Chikkaballapura 城市地区（CBU），与季风季节前相比，季风季节前的大多数地下水样本都超过了饮用水水质限值。在季风来临前的季节，Thippanahalli、Doddapailagurki、Poshettihalli、Kuppahalli、Mandikal 和 Ajjivara 乡发现了高浓度的氟化物，而在季风来临前的季节，CBR 的 Addagallu 和 Manchanabele 乡发现了高浓度的硝酸盐。建议对受污染地区的地下水水质进行持续监测，以防止进一步恶化和相关问题的出现，并鼓励雨水收集做法，以帮助减轻城市和农村供水系统的负荷。

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Evaluation of Groundwater Suitability for Drinking Purposes Using GIS and WQI in Chikkaballapura Taluk, Karnataka, India

In the present study, groundwater samples were analysed to determine the suitability of groundwater for drinking use in Chikkaballapura taluk (CBT) in 2019. The tests were conducted on the groundwater twice a year, during the pre-monsoon and post-monsoon seasons. The results of 12 physico chemical parameters were used for the calculation of the water quality index (WQI). ArcGIS was used in the study to plot the spatial variation of chloride, nitrate, and fluoride. In urban areas, WQI ranged from 42.94 to 204 during the pre-monsoon season and from 62.67 to 153.93 during the post-monsoon season. Similarly, in rural areas, WQI ranged from 47.78 to 245.98 during the pre-monsoon season and from 35.92 to 405.63 during the post-monsoon season. The results of the WQI show that most samples fall into poor water categories according to the quality rating scale. Also, the results revealed that both in Chikkaballapura rural (CBR) and Chikkaballapura urban (CBU), most of the groundwater samples exceeded the drinking water quality limits during the pre-monsoon season when compared to the post-monsoon season. High levels of fluoride were found in Thippanahalli, Doddapailagurki, Poshettihalli, Kuppahalli, Mandikal and Ajjivara grama panchayaths and a significantly high concentration of nitrate was found in Addagallu and Manchanabele grama panchayaths during the pre-monsoon season in CBR. It was suggested that constant monitoring of groundwater quality in contaminated areas be carried out to prevent further deterioration and related problems and that rainwater harvesting practices be encouraged to help reduce the load on urban and rural water supply systems.

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来源期刊

Asian Journal of Water, Environment and Pollution ENVIRONMENTAL SCIENCES-

CiteScore

1.00

自引率

20.00%

发文量

期刊介绍： Asia, as a whole region, faces severe stress on water availability, primarily due to high population density. Many regions of the continent face severe problems of water pollution on local as well as regional scale and these have to be tackled with a pan-Asian approach. However, the available literature on the subject is generally based on research done in Europe and North America. Therefore, there is an urgent and strong need for an Asian journal with its focus on the region and wherein the region specific problems are addressed in an intelligent manner. In Asia, besides water, there are several other issues related to environment, such as; global warming and its impact; intense land/use and shifting pattern of agriculture; issues related to fertilizer applications and pesticide residues in soil and water; and solid and liquid waste management particularly in industrial and urban areas. Asia is also a region with intense mining activities whereby serious environmental problems related to land/use, loss of top soil, water pollution and acid mine drainage are faced by various communities. Essentially, Asians are confronted with environmental problems on many fronts. Many pressing issues in the region interlink various aspects of environmental problems faced by population in this densely habited region in the world. Pollution is one such serious issue for many countries since there are many transnational water bodies that spread the pollutants across the entire region. Water, environment and pollution together constitute a three axial problem that all concerned people in the region would like to focus on.