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Title: Determination of nitrogen dioxide in ambient air by use of a passive sampling technique and triethanolamine as absorbent

Abstract

The effects of temperature, humidity, and storage on a diffusive sampler were tested by use of the Amaya-Sugiura method, modified previously. Several materials were used as carriers for triethanolamine in the sampler. The mass of NO{sub 2} absorbed in the sampler was determined spectrophotometrically as nitrite by using Saltzman solution. The collection efficiency of the sampler was lower than that calculated from Fick's law of diffusion due to significant contribution of liquid phase in the overall sampler diffusive resistance. This resulted in an increase of the mass of NO{sub 2} absorbed in the sampler by ca. 20% per 10{degree}C of temperature growth and by ca. 25% when the relative humidity rose from 0 to 100%. Dependence of concentration of TEA solution in the sampler on the relative humidity of the air was noted. The relative precision of the method characterized by RSD was 10%; the detection limit of NO{sub 2} was 10 {mu}g/m{sup 3} for a 24-h exposure.

Authors:
;  [1]
  1. (Technical Univ. of Cracow (Poland))
Publication Date:
OSTI Identifier:
5479953
Resource Type:
Journal Article
Resource Relation:
Journal Name: Environmental Science and Technology; (USA); Journal Volume: 25:3
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT; NITROGEN DIOXIDE; AIR SAMPLERS; SPECTROPHOTOMETRY; DATA ANALYSIS; EXPERIMENTAL DATA; HUMIDITY; MEASURING METHODS; TEMPERATURE EFFECTS; CHALCOGENIDES; DATA; EQUIPMENT; INFORMATION; NITROGEN COMPOUNDS; NITROGEN OXIDES; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; SAMPLERS; 540120* - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-); 010900 - Coal, Lignite, & Peat- Environmental Aspects

Citation Formats

Krochmal, D., and Gorski, L.. Determination of nitrogen dioxide in ambient air by use of a passive sampling technique and triethanolamine as absorbent. United States: N. p., 1991. Web. doi:10.1021/es00015a023.
Krochmal, D., & Gorski, L.. Determination of nitrogen dioxide in ambient air by use of a passive sampling technique and triethanolamine as absorbent. United States. doi:10.1021/es00015a023.
Krochmal, D., and Gorski, L.. Fri . "Determination of nitrogen dioxide in ambient air by use of a passive sampling technique and triethanolamine as absorbent". United States. doi:10.1021/es00015a023.
@article{osti_5479953,
title = {Determination of nitrogen dioxide in ambient air by use of a passive sampling technique and triethanolamine as absorbent},
author = {Krochmal, D. and Gorski, L.},
abstractNote = {The effects of temperature, humidity, and storage on a diffusive sampler were tested by use of the Amaya-Sugiura method, modified previously. Several materials were used as carriers for triethanolamine in the sampler. The mass of NO{sub 2} absorbed in the sampler was determined spectrophotometrically as nitrite by using Saltzman solution. The collection efficiency of the sampler was lower than that calculated from Fick's law of diffusion due to significant contribution of liquid phase in the overall sampler diffusive resistance. This resulted in an increase of the mass of NO{sub 2} absorbed in the sampler by ca. 20% per 10{degree}C of temperature growth and by ca. 25% when the relative humidity rose from 0 to 100%. Dependence of concentration of TEA solution in the sampler on the relative humidity of the air was noted. The relative precision of the method characterized by RSD was 10%; the detection limit of NO{sub 2} was 10 {mu}g/m{sup 3} for a 24-h exposure.},
doi = {10.1021/es00015a023},
journal = {Environmental Science and Technology; (USA)},
number = ,
volume = 25:3,
place = {United States},
year = {Fri Mar 01 00:00:00 EST 1991},
month = {Fri Mar 01 00:00:00 EST 1991}
}