According to a study by NBC News, water tested downstream from a hydraulic fracturing wastewater plant in Pennsylvania contained 200 times more radium than naturally present upstream.
The concentrations of radium found downstream are higher than those found in some radioactive waste dumps. They also exceed minimum thresholds the government uses to qualify a dump as a 'radioactive dump'.
When water is injected deep underground to break rocks in which hydrocarbons are trapped, wastewater is produced that can be radioactive. Despite efforts to treat the water before releasing it the study shows that the water released still contains high levels of radium.
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