A Temporal Evaluation of Respirable Crystalline Silica Exposure for Construction Tasks

Details

• Personal Author:
  Autenrieth DA ; Brazile WJ ; Cothern EJ
• Description:
  Personal air monitoring using a TSI SidePak AM520 personal aerosol monitor was performed on a northern Colorado construction site during five tasks from the OSHA Table 1: Specified Exposure Control Methods When Working With Materials Containing Crystalline Silica to estimate silica dust concentrations in real time. Photometric measurements were modified using a gravimetric correction factor and a % respirable crystalline silica adjustment. Each task was sampled once; sample time ranged from 14 min to 40 min, with a mean sample time of 27 min. The mean silica dust concentration estimates (µg/m3) (standard deviation [SD]) for the five tasks computed from the TSI SidePak AM520 respirable dust measurements were core drilling 12 µg/m3 [2.46], grinding 918 µg/m3 [1134.08], cutting with a walk-behind saw 36 µg/m3 [79.67], jackhammering 27 µg/m3 [23.24], and dowel drilling 66 µg/m3 [77.65]. Silica exposure estimates from real-time monitoring can be used to identify exposures that may be related to inadequate controls or worker behaviors that contribute to peak exposures. Respirable crystalline silica exposure estimates presented here are likely not generalizable to other construction sites or tasks. [Description provided by NIOSH]
• Subjects:
  Aerosols Construction Industry Dust Environmental Monitoring Occupational Health Safety Silicon Dioxide
• Keywords:
  Aerosol Sampling Air Monitoring Author Keywords: Construction Construction Crystalline Silica OSHA Silica Permissible Exposure Limit OSHA Table I Real-time Dust Monitoring Respirable Dust Silica Dusts Silica Exposure

  More +
• ISSN:
  2398-7308
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; Montana ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  437-441
• Volume:
  68
• Issue:
  4
• NIOSHTIC Number:
  nn:20069603
• Citation:
  Ann Work Expo Health 2024 May; 68(4):437-441
• Contact Point Address:
  William J. Brazile, Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Fort Collins, CO 80523-1681
• Email:
  William.brazile@colostate.edu
• CAS Registry Number:
  Quartz (SiO2) (CAS RN 14808-60-7)
• Federal Fiscal Year:
  2024
• Performing Organization:
  University of Colorado, Denver
• Peer Reviewed:
  True
• Start Date:
  20070701
• Source Full Name:
  Annals of Work Exposures and Health
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ea739654769ea04959a3e43133235f2cc098beea6dce3dba5a218fbff7e8de8ae08614f5ed71768f6aa853e2fdea5dd89eefdc87910797f40795d2e4bb26768e
• Download URL:
  https://stacks.cdc.gov/view/cdc/208003/cdc_208003_DS1.pdf
• File Type:
  [PDF - 618.88 KB ]