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A simple Method for Determination of gaseous nitrous Acid in the Atmosphere
IVL Swedish Environmental Research Institute.
IVL Swedish Environmental Research Institute.
1983 (English)Report (Other academic)
Abstract [sv]

A denuder technique for sampling an analysing nitrous acid at sub ppb level is described. After sampling teh denuder is leached in waer and the NO2-concentration is determined spectrophotometrically. The detection limit for 24 hours sampling is better than 0.02 ppb. PAN might be an important interference in background air during summertime conditions. The method was tested on synthetic gas mixtures of NO, NO2 and HNO2. It has been appeared that HNO2 can be formed by heterogeneous rections at surfaces. Measurements in the city of Gothenburg indicate that the major pathwy for HNO2-formation in urban air is the reaction between NO, NO2 and water vapor.

Abstract [en]

A denuder technique for sampling an analysing nitrous acid at sub ppb level is described. After sampling teh denuder is leached in waer and the NO2-concentration is determined spectrophotometrically. The detection limit for 24 hours sampling is better than 0.02 ppb. PAN might be an important interference in background air during summertime conditions. The method was tested on synthetic gas mixtures of NO, NO2 and HNO2. It has been appeared that HNO2 can be formed by heterogeneous rections at surfaces. Measurements in the city of Gothenburg indicate that the major pathwy for HNO2-formation in urban air is the reaction between NO, NO2 and water vapor.

Place, publisher, year, edition, pages
IVL Svenska Miljöinstitutet, 1983.
Series
B report ; B718
Keywords [sv]
HNO2, NO, NO2, denuder technique, PAN, HNO2-formation, urban air
Identifiers
URN: urn:nbn:se:ivl:diva-1420OAI: oai:DiVA.org:ivl-1420DiVA, id: diva2:1550853
Available from: 2021-05-05 Created: 2021-05-05 Last updated: 2021-05-18Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf