Physico-Chemical Quality Assessment of Ground Water in Kathmandu Valley and Siraha District

The Mega Journal Pub Date : 2024-03-18 DOI:10.3126/tmj.v3i1.63764

Basanti Belbase, Niru Bhandari, Nishan Paudyal, Bhola Nath Paudyal, Pradeep K. Shah

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Abstract

A key element in maintaining human health is the quality of drinking water which is a vital component of natural resources. This study was conducted to assess the ground water quality in the Kathmandu Valley and Siraha district from October 2022 to March 2023 in the Water Engineering and Training Centre, Ratopul, Kathmandu. A total of 123 water samples were collected from various wells and borings around the Kathmandu Valley and Siraha district and were subjected to physicochemical investigation following the standard techniques for water sample collection and analyzed by methods as described in the American Public Health Association (1998). The pH, conductivity, turbidity, ammonia concentration, and iron content were found to exceed National Drinking Water Quality Standard guidelines value in 21.95%, 3.25 %, 53.65 %, 47.15 %, and 18.7 % of total water samples respectively. All water samples had total hardness and chloride levels within the acceptable range. The arsenic content of all samples except one well water sample from Siraha was found within a permissible level. The findings suggest that water quality is not satisfactory, which could lead to various water-borne illnesses. Therefore, proper water purification techniques should be used before consumption.

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加德满都谷地和锡拉哈县地下水的物理化学质量评估

维护人类健康的一个关键因素是作为自然资源重要组成部分的饮用水的质量。本研究于 2022 年 10 月至 2023 年 3 月在加德满都 Ratopul 的水工程和培训中心进行，旨在评估加德满都谷地和锡拉哈地区的地下水水质。我们从加德满都谷地和锡拉哈县周围的不同水井和钻孔中采集了 123 份水样，按照水样采集的标准技术进行了理化调查，并按照美国公共卫生协会（1998 年）所述方法进行了分析。在所有水样中，发现 pH 值、电导率、浑浊度、氨浓度和铁含量分别超过国家饮用水质量标准指导值的比例分别为 21.95%、3.25%、53.65%、47.15% 和 18.7%。所有水样的总硬度和氯化物含量都在可接受范围内。除锡拉哈的一个井水样本外，所有样本的砷含量都在允许范围内。研究结果表明，水质并不令人满意，可能导致各种水媒疾病。因此，在饮用前应使用适当的水净化技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Mega Journal

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