Nitrate concentrations, exacerbated by a wet spring that followed years of dry conditions, reached near record highs in Iowa rivers this summer.

Apart from uranium, Delhi's groundwater has high amounts of nitrates, fluorides, etc For decades, many of Delhi's households have relied on borewells, tubewells and hand-pumps for drinking water - ...

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Nitrate concentrations, exacerbated by a wet spring that followed years of dry conditions, reached near record highs in Iowa ...