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In-Depth Survey Report: Control of Respirable Dust and Crystalline Silica from Breaking Concrete with a JackHammer at Bishop Sanzari Companies, North Bergen, New Jersey.
| 题名： | In-Depth Survey Report: Control of Respirable Dust and Crystalline Silica from Breaking Concrete with a JackHammer at Bishop Sanzari Companies, North Bergen, New Jersey. |
| 作者： | echt, a. sieber, k. jones, e. schill, d. p. lefkowitz, d. |
| 关键词： | *Dust-control; *Silica-; *Occupational-exposure; *Highway-maintenance.;Environmental-exposure; Concretes-; Construction-workers; Pavements-; Wetting-; Ventilation-; Dust-collection; Occupational-safety-and-health. |
| 摘要： | Three different dust controls for use with jackhammers were evaluated. The objective of this study was to quantify the exposure reduction that could be achieved through the use of a water spray attachment and two different tool-mounted local exhaust ventilation shrouds during concrete pavement breaking with jackhammers. The effectiveness of the dust controls examined in this study was evaluated by measuring the reduction in the respirable dust exposure in the breathing zone of the construction worker when a dust control device was used compared to the exposure when no dust control device was used. Respirable dust exposure was measured in real time using a portable laser photometer. In addition, personal breathing zone samples were collected and analyzed using established NIOSH methods. |
| 报告类型： | 科技报告 |
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