Exposure to Airborne Nano-Titanium Dioxide During Airless Spray Painting and Sanding

Details

• Personal Author:
  Burrelli LG ; Cooper MR ; Dresser D ; Lippy BE ; West, Gavin H.
• Description:
  Objectives of the study were to measure and characterize exposure to airborne nanoscale titanium dioxide during airless spraying and sanding of a nano-enabled paint, and to evaluate the effectiveness of dust capture methods in reducing airborne nanoparticle concentrations. A tradesperson performed the work activities in an environmentally-controlled chamber. Samples were collected in the tradesperson's breathing zone and in surrounding areas to assess bystander exposure. Filter-based samples were analyzed using gravimetric methods, scanning electron microscopy, and energy dispersive spectroscopy. Differential particle count data were obtained by means of a scanning mobility particle sizer. Local exhaust ventilation provided statistically significant reductions of airborne nanoparticle concentrations during sanding. Sanding the paint after drying with a handheld power sander generated relatively low levels of airborne titanium dioxide. In contrast, task-based exposure measurements collected during the initial airless spray application of the nano-enabled paint suggested a potential for occupational exposures to exceed the time-weighted average exposure limit for ultrafine titanium dioxide recommended by the National Institute for Occupational Safety and Health. Painters applying nano-enabled coatings may have little recourse but to rely, in some instances, on lower tiers of the hierarchy of controls, such as personal protective equipment. In light of these findings, employers and industrial hygienists should characterize exposures and implement the hierarchy of controls to ensure painters are sufficiently protected. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Construction Industry Dust Engineering Environmental Monitoring Occupational Exposure Occupational Health Paint Personal Protective Equipment Respiratory System Safety Titanium Ventilation

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• Keywords:
  Airborne Particles Air Sampling Author Keywords: Construction Coatings Construction Construction Equipment Construction Workers Control Methods Dust Collectors Dust Control Equipment Effectiveness Research Employee Exposure Engineering Controls Exhaust Ventilation Exposure Assessment Exposure Limits Hierarchy Of Controls Inhalation Local Exhaust Ventilation Nanoenabled Nanomaterials Nanoparticles Nanoscale Nanotechnology Painters Painting Personal Protective Equipment PPE Spray Painting Sprays Time Weighted Average Exposure Titanium Dioxide Ultrafine Particles

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• ISSN:
  1545-9624
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Journal Article
• Place as Subject:
  Maryland ; OSHA Region 3
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  218-228
• Volume:
  16
• Issue:
  3
• NIOSHTIC Number:
  nn:20053745
• Citation:
  J Occup Environ Hyg 2019 Mar; 16(3):218-228
• Contact Point Address:
  Gavin H. West, CPWR - The Center for Construction Research and Training 8484 Georgia Avenue, Suite 1000 Silver Spring, MD 20910, USA
• Email:
  gwest@cpwr.com
• CAS Registry Number:
  Titania (CAS RN 13463-67-7)
• Federal Fiscal Year:
  2019
• NORA Priority Area:
  Construction
• Performing Organization:
  CPWR - The Center for Construction Research and Training, Silver Spring, Maryland
• Peer Reviewed:
  True
• Start Date:
  20090901
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• End Date:
  20240831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:931b3cb91102ac54d8736b0e9bd9a096a085abe82f81d63904b6b53f78d4a6c26097e6c1bd0a579814a6d790b27c1003e8e11af9087315494f016549bcb4bd2d
• Download URL:
  https://stacks.cdc.gov/view/cdc/216456/cdc_216456_DS1.pdf
• File Type:
  [PDF - 2.01 MB ]