Ultrafine Particle Emissions from Essential-Oil-Based Mosquito Repellent Products

Details

• Personal Author:
  Fung D ; Jiang J ; Liu K ; Zhu Y
• Description:
  Ultrafine particle (UFP) emissions from three essential-oil-based mosquito repellent products (lemon eucalyptus (LE), natural insects (NI), and bite shield (BS)) were tested in a 386 l chamber at a high air exchange rate of 24/h with filtered laboratory air. Total particle number concentration and size distribution were monitored by a condensation particle counter and a scanning mobility particle sizer, respectively. UFPs were emitted from all three products under indoor relevant ozone concentrations (approximately 17 ppb). LE showed a nucleation burst followed by a relatively stable and continuous emission while the other two products (NI and BS) showed episodic emissions. The estimated maximum particle emission rate varied from 5.4 × 109 to 1.2 × 1012 particles/min and was directly related to the dose of mosquito repellent used. These rates are comparable to those due to other indoor activities such as cooking and printing. The emission duration for LE lasted for 8-78 min depending on the dose applied while the emission duration for NI and BS lasted for 2-3 h. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Occupational Health Ozone Safety
• Keywords:
  Air Pollutants Author Keywords: Indoor Air Quality Dose Response Essential Oil Insect Repellents Mosquito Repellent Oils Particle Sizers Secondary Organic Aerosol Ultrafine Particle Ultrafine Particles

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• ISSN:
  0905-6947
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  327-335
• Volume:
  24
• Issue:
  3
• NIOSHTIC Number:
  nn:20055782
• Citation:
  Indoor Air 2014 Jun; 24(3):327-335
• Contact Point Address:
  Y. Zhu, University of California, Department of Environmental Health Sciences, Jonathan and Karin Fielding School of Public Health, Los Angeles, CA, USA
• Email:
  yifang@ucla.edu
• CAS Registry Number:
  Ozone (CAS RN 10028-15-6)
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Indoor Air
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f512098e7b3a09108f08868686b723718a20ab3e071e0e4922b169c4551c36ab8f8b5a4a28b4171ea8348f391c85c0b5caedc2c90a3a99f4450ffc9c65722540
• Download URL:
  https://stacks.cdc.gov/view/cdc/213555/cdc_213555_DS1.pdf
• File Type:
  [PDF - 325.63 KB ]