A Chamber Study of Alkyl Nitrate Production Formed by Terpene Ozonolysis in the Presence of NO and Alkanes

Details

• Personal Author:
  Ham JE ; Harrison JC ; Jackson, Stephen R. ; Wells JR
• Description:
  Organic nitrates are relatively long-lived species and have been shown to have a potential impact on atmospheric chemistry on local, regional, and even global scales. However, the significance of these compounds in the indoor environment remains to be seen. This work describes an impinger-based sampling and analysis technique for organic nitrate species, focusing on formation via terpene ozonolysis in the presence of nitric oxide (NO). Experiments were conducted in a Teflon film environmental chamber to measure the formation of alkyl nitrates produced from a-pinene ozonolysis in the presence of NO and alkanes using gas chromatography with an electron capture detector. For the different concentrations of NO and O3 analyzed, the concentration ratio of [O3]/[NO] around 1 was found to produce the highest organic nitrate concentration, with [O3] = 100 ppb & [NO] = 105 ppb resulting in the most organic nitrate formation, roughly 5 ppb. The experiments on a-pinene ozonolysis in the presence of NO suggest that organic nitrates have the potential to form in indoor air between infiltrated ozone/NO and terpenes from household and consumer products. [Description provided by NIOSH]
• Subjects:
  Atmosphere Chemistry Nitrates Nitric Oxide Occupational Health Safety
• Keywords:
  Author Keywords: Organic Nitrate Chemical Properties Gas Chromatography Indoor Air Indoor Environments Nitric Oxide Occupational Health Organic Compounds Sampling Terpene
• ISSN:
  1352-2310
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  143-148
• Volume:
  171
• NIOSHTIC Number:
  nn:20050561
• Citation:
  Atmos Environ 2017 Dec; 171:143-148
• Contact Point Address:
  J.R. Wells, Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505
• Email:
  rwells@cdc.gov
• CAS Registry Number:
  Nitric oxide (CAS RN 10102-43-9)
• Federal Fiscal Year:
  2018
• NORA Priority Area:
  Healthcare and Social Assistance ; Services
• Peer Reviewed:
  True
• Source Full Name:
  Atmospheric Environment
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c4f36709f980beb56d201cc17a76859218a47ca5c45a743a6624a93e428b4649d1e1bbfcffdd87e8f79d80e05df21857323e975e315267044d8a853f1d8803d6
• Download URL:
  https://stacks.cdc.gov/view/cdc/210857/cdc_210857_DS1.pdf
• File Type:
  [PDF - 1.14 MB ]