Uranium concentration in the ground water samples from the district of Tiruvannamalai, Tamil Nadu, was measured using an LED fluorimeter. All the samples were qualified as potable water from the radiological perspective. Though some samples showed mild chemical toxicity, they are still safe for ingestion. Different risk coefficients were calculated, and they were compared with recommended safety limits specified by various agencies. Software tools such as QGIS 15, GraphPad Prism 8 and Surfer 15 were employed for developing maps and plots.

中文翻译：

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从放射和化学毒性的角度窥视印度泰米尔纳德邦蒂鲁凡纳马莱地区的地下水水质状况

使用LED荧光计测量了泰米尔纳德邦蒂鲁凡纳玛莱地区地下水样品中的铀浓度。从放射学的角度来看，所有样品均合格为饮用水。尽管某些样品显示出轻微的化学毒性，但仍可安全摄入。计算了不同的风险系数，并将它们与各个机构指定的建议安全限值进行了比较。使用诸如QGIS 15，GraphPad Prism 8和Surfer 15之类的软件工具来开发地图和绘图。