Understanding the Influence of Atomizing Power on Electronic Cigarette Aerosol Size and Inhalation Dose Estimation

Details

• Personal Author:
  Han I ; Lee J ; Su W-C
• Description:
  Although many studies have estimated the inhalation dose of aerosols emitted from electronic cigarettes (e-cigs), the association between the atomizing power and inhalation dose of e-cig aerosols has not been fully examined. The aim of this study was to determine the mass and inhalation doses of e-cig aerosols and their association with the atomizing power of vaping devices. Size-segregated aerosol masses were collected using an 11-stage cascade impactor and the deposition dose in the human respiratory tract was estimated using the size-segregated aerosol mass. The results showed that an increase in atomizing power was positively associated with the amount of aerosol mass generated (p-value < 0.001). The mass median aerodynamic diameter and mass mean diameter of aerosol were 0.91 µm and 0.84 µm, respectively. The average deposition fractions of aerosols in the head airway, tracheobronchial region, and alveolar region were 67.2, 6.2, and 26.6%, respectively. In conclusion, vaping with a higher atomizing power increases the e-cig aerosol inhalation dose in the airway. [Description provided by NIOSH]
• Subjects:
  Aerosols Occupational Health Particulate Matter Respiratory System Safety
• Keywords:
  Aerosol Particles E-cigarettes Electronic Cigarettes Inhalation Particle Size
• ISSN:
  0278-6826
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; OSHA Region 6 ; Pennsylvania ; Texas
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  57
• Issue:
  7
• NIOSHTIC Number:
  nn:20069690
• Citation:
  Aerosol Sci Technol 2023 Jul; 57(7):633-644
• Contact Point Address:
  Inkyu Han, Department of Epidemiology and Biostatistics, Temple University College of Public Health, 1301 Cecile B. Moore Avenue, Ritter Annex #907 Philadelphia, PA 19122, USA
• Email:
  inkyu.han@temple.edu
• Federal Fiscal Year:
  2023
• Performing Organization:
  University of Texas Health Science Center, Houston
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Aerosol Science and Technology
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6cf819296790ddddf7f1e307f70193177a90509e093abea59f80ac40830514a42b05ec972ce557b45abe4471032045ff8bb962d371c8fc6516415b468769a734
• Download URL:
  https://stacks.cdc.gov/view/cdc/208067/cdc_208067_DS1.pdf
• File Type:
  [PDF - 2.05 MB ]