In this paper, we have investigated 18 water samples collected from various sources, e.g., surface, underground and river water, as specimens for their sodium and potassium ions content in and around Dhanbad, a mining town, using the flame photometry. We have plotted the contour maps to show the spatial distributions of the dissolved sodium and potassium cations in the groundwater and surface water sources in and around the Dhanbad city to identify the relative contributions of human and natural phenomena to it. Along with it, water quality index (WQI) is calculated to evaluate whether the collected surface, ground and river water samples are fit for human consumption for the residents of those areas. The water of Maithan Dam has been observed to have the least sodium and potassium concentrations of 16 mg/l and 7 mg/l, respectively, which make it most suitable for human consumption. The water of Rani Talab Pond has the highest sodium and potassium contents of 49 mg/l and 24 mg/l. WQI values of all the samples are found to be less than 50, which indicates they are safe to consume by the humans. Reduction in the use of pesticides, potassium permanganate and water softeners is recommended to maintain WQI of the Dhanbad city within safe limit.

中文翻译：

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用火焰光度计测定地表水和地下水中总钠和钾的浓度

在本文中，我们使用火焰光度法对从采矿镇丹巴德及其周边地区的18种水样进行了调查，这些水样是从地表水，地下水和河水等各种来源收集的，作为其钠离子和钾离子含量的标本。我们绘制了等高线图，以显示在丹巴德市内及周围的地下水和地表水源中溶解的钠和钾阳离子的空间分布，以确定人为和自然现象对其的相对贡献。随之计算水质指数（WQI），以评估收集的地表水，地下水和河水样品是否适合这些地区居民的人类消费。据观察，迈森大坝的水中钠和钾的最低浓度分别为16 mg / l和7 mg / l，这使其最适合人类食用。Rani Talab Pond的水中钠和钾含量最高，分别为49 mg / l和24 mg / l。发现所有样品的WQI值均小于50，这表明它们可以被人类安全食用。建议减少农药，高锰酸钾和水软化剂的使用，以使丹巴德市的水质指数保持在安全范围内。