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Title: Measurement of ambient nitrous acid and a reliable calibration source for gaseous nitrous acid

Abstract

A diffusion scrubber based automated instrument measures HONO utilizing ion chromatography and UV detection with time resolutions of 7-15 min and a detection limit of ca. 20 pptv. The thermodynamic equilibrium of NH{sub 3}(g) and HONO(g) over NH{sub 4}NO{sub 2}(s) can be described by ln (p{sub HONO}, atm) = {minus}8,018 {plus minus} 84/T + 16.81 {plus minus} 0.30 and provides a convenient and reliable source for HONO(g) free from major contamination with NO{sub x}. Ambient measurement data for Lubbock, TX, are presented. Persistent daytime concentrations of HONO in the 100-500 pptv range, weekday morning peak concentrations up to 1 ppbv following peak traffic hours, and typical nighttime peak concentrations between 1 and 2 ppbv are observed.

Authors:
;  [1]
  1. Texas Tech Univ., Lubbock (United States)
Publication Date:
OSTI Identifier:
5040165
Resource Type:
Journal Article
Journal Name:
Environmental Science and Technology; (United States)
Additional Journal Information:
Journal Volume: 25:2; Journal ID: ISSN 0013-936X
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; NITROUS ACID; ION EXCHANGE CHROMATOGRAPHY; ATMOSPHERIC CHEMISTRY; EXPERIMENTAL DATA; MEASURING METHODS; SENSITIVITY; SPECTRAL RESPONSE; CHEMISTRY; CHROMATOGRAPHY; DATA; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; NUMERICAL DATA; SEPARATION PROCESSES; 540120* - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-); 400102 - Chemical & Spectral Procedures

Citation Formats

Vecera, Z, and Dasgupta, P K. Measurement of ambient nitrous acid and a reliable calibration source for gaseous nitrous acid. United States: N. p., 1991. Web. doi:10.1021/es00014a006.
Vecera, Z, & Dasgupta, P K. Measurement of ambient nitrous acid and a reliable calibration source for gaseous nitrous acid. United States. https://doi.org/10.1021/es00014a006
Vecera, Z, and Dasgupta, P K. 1991. "Measurement of ambient nitrous acid and a reliable calibration source for gaseous nitrous acid". United States. https://doi.org/10.1021/es00014a006.
@article{osti_5040165,
title = {Measurement of ambient nitrous acid and a reliable calibration source for gaseous nitrous acid},
author = {Vecera, Z and Dasgupta, P K},
abstractNote = {A diffusion scrubber based automated instrument measures HONO utilizing ion chromatography and UV detection with time resolutions of 7-15 min and a detection limit of ca. 20 pptv. The thermodynamic equilibrium of NH{sub 3}(g) and HONO(g) over NH{sub 4}NO{sub 2}(s) can be described by ln (p{sub HONO}, atm) = {minus}8,018 {plus minus} 84/T + 16.81 {plus minus} 0.30 and provides a convenient and reliable source for HONO(g) free from major contamination with NO{sub x}. Ambient measurement data for Lubbock, TX, are presented. Persistent daytime concentrations of HONO in the 100-500 pptv range, weekday morning peak concentrations up to 1 ppbv following peak traffic hours, and typical nighttime peak concentrations between 1 and 2 ppbv are observed.},
doi = {10.1021/es00014a006},
url = {https://www.osti.gov/biblio/5040165}, journal = {Environmental Science and Technology; (United States)},
issn = {0013-936X},
number = ,
volume = 25:2,
place = {United States},
year = {1991},
month = {2}
}