A worker makes a cut in the side of a sandstone block at the Cleveland Quarries facility in Vermilion, Ohio, earlier this month.
http://www.gpb.org/news/2013/02/07/silica-rule-changes-delayed-while-workers-face-health-risks?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+GPBNewsFeed+%28GPB+News%29
http://www.gpb.org/news/2013/02/07/silica-rule-changes-delayed-while-workers-face-health-risks?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+GPBNewsFeed+%28GPB+News%29
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