Chesapeake Physicians for Social Responsibility, a organisation of Maryland doctors, is seeking disclosure of chemical formulas used in the hydraulic fracturing process used for natural-gas drilling in the state, the Cumberland Times-News reported.
The doctors’ group is working with a coalition of health and environmental organisations in opposing a draft proposal by the Maryland Department of the Environment to keep the chemical information confidential, the newspaper reported.
Drew P. Cobbs of the Maryland Petroleum Council, an oil- industry trade group, told the Times-News that many companies are already disclosing the ingredients in fracking fluid, while keeping the proportions confidential.