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By U.S. Department of Labor, Occupational Safety and Health Administration

Powerful administration of worker security and wellbeing and fitness safety is a decisive consider decreasing the level and severity of work-related accidents and health problems and their comparable expenditures. actually, a good protection and future health administration process types the root of excellent worker safeguard which may store money and time, elevate productiveness and decrease worker accidents, health problems and comparable employees’ repayment charges. to aid employers and staff in constructing powerful defense and wellbeing and fitness administration structures, this 2009 counsel rfile addresses the keep watch over of worker exposures to respirable dirt containing crystalline silica, that's identified to reason silicosis, a significant lung sickness, in addition to bring up the chance of lung melanoma and different systemic ailments. This rfile presents details at the effectiveness of assorted engineering regulate methods for numerous varieties of development operations and gear, and comprises techniques for paintings practices and respiration safeguard, as acceptable.

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Extra resources for Controlling Silica Exposures in Construction

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2008. Water Spray Control of Hazardous Dust When Breaking Concrete with a Jackhammer. May, 2008. gov/niosh/docs/wpsolutions/ 2008-127. OSHA. 1996. Ground-fault protection on construction sites. Occupational Safety and Health Administration, Office of Training and Education. May, 1996. OSHA Case Files (Special Emphasis Program Inspection Reports, 1996-1998). Shields, C. 2000a. Database: Silica dust exposures associated with construction activities. Occupational Safety and Health Administration, North Aurora, IL.

1996. Ground-fault protection on construction sites. Occupational Safety and Health Administration, Office of Training and Education. May, 1996. OSHA Case Files (Special Emphasis Program Inspection Reports from 1996-1998). Shields, C. 1999. Silica dust exposures from OSHA construction inspections in the Chicago area 19961998. Occupational Safety and Health Administration. Aurora, IL, Area Office. Slide Presentation. Zalk, D. 2002. Personal communication between D. Zalk, Lawrence Livermore Laboratory, CA.

Thus, wet methods decrease the amount of particulate matter suspended in the air. This form of dust suppression is effective for both respirable and visible dust. The ideal wet method of dust control uses the minimum amount of water to get the maximum result. Spray directed at the point of impact is optimal. The spray must not be too fine otherwise the air motion around the jackhammer will not allow the spray to contact dust at the impact point. For example, employees operating 90-pound jackhammers reduced their silica exposure between 50 and 98 percent using just 1/8 gallon of water per minute as a spray (Zalk, 2002).

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