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Revision as of 17:09, 13 August 2014 by 93.115.94.85 (talk) (Three years <a href=" http://www.astrobrite.net/coupons.html ">propranolol price</a> Current silica dust standards for workers in the shipbuilding, railroad and construction industries were establish)
Three years <a href=" http://www.astrobrite.net/coupons.html ">propranolol price</a> Current silica dust standards for workers in the shipbuilding, railroad and construction industries were established more than four decades ago, Banerjee said. The new standards would establish a legal limit of 50 micrograms per cubic meter of air for workplace silica dust concentrations for all industries, over an eight-hour day.