(MENAFN) Denmark said that it has halted the first exploratory drilling for shale gas in the country with accusations to the French firm Total of using an unauthorized chemical, AFP reported.
According to Danish public broadcaster DR, the product known as Null Foam, used in the so-called fracking process to extract shale gas, was considered to be an environmental hazard.
The leader of the drilling project for Total said the chemical was not illegal and was left off the initial list of products used at the site "because we did not expect it would be a problem".
"We have been in dialogue with both the municipality and the Danish Energy Agency since February and we felt that we had a common understanding that the substance could be used," he told DR.
Fracking or hydraulic fracturing is a process used to extract shale gas by blasting a high-pressure mixture of water, sand and chemicals deep underground to release hydrocarbons trapped between layers of rock.
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