Oil, Gas Companies Injected Chemicals Into Ground, Report Shows
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Fourteen oil and gas companies used 780 million gallons of hydraulic-fracturing products from 2005 and 2009, including toxic substances like benzene and lead, to extract gas from shale rock, according to a report by Democrats in the U.S. Congress.
More than 2,500 products containing 750 chemicals and other components were used, Representatives Henry Waxman, Edward Markey and Diana DeGette wrote in the report.