Rock Products 120th Anniversary – Part 5

IN THIS SPECIAL YEAR-LONG SERIES CELEBRATING OUR 120TH YEAR PUBLISHING MILESTONE, ROCK PRODUCTS PRESENTS A HISTORY OF THE AGGREGATES INDUSTRY. In This Issue, We Cover The Years 1940-1949. In 1939, German troops entered Poland to begin a string of seemingly unstoppable invasions that extended German Dictator Adolph Hitler’s control over much of eastern and western Europe. It was the start…

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Beyond Assessment:

HELMET-CAM TECHNOLOGY INFLUENCING DUST EXPOSURE AWARENESS AND RESPONSE. By Emily J. Haas and Andrew B. Cecala Exposure to respirable dust, and especially dust containing crystalline silica, continues to be a serious health concern for our nation’s miners. Despite constant advances to lower respirable dust exposures, miners still experience periods of elevated exposure while performing their jobs. A joint venture several…

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