BACK TO CATEGORIES Photo ID: 1434 (Click photo to view original size.) Category: Silica Hazard: Air exhausted from an enclosed sandblasting booth, which contained silica dust, was not exhausted through a dust collection system. The dust drifted into the work area, contributing to silica dust overexposures. Standard Violated: 1910.94(a)(4)(iii), 1910.1000(c) Corrective Action: A new booth and exhaust system was installed. Aluminum oxide was substituted as a blasting agent. Description: The photo depicts silica dust exausted to the outside of an abrasive blasting booth without a dust collection system.