トリエタノールアミン円筒炉紙法による大気中の二酸化硫黄および二酸化窒素の簡易同時測定法
書誌事項
- タイトル別名
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- A Simple and Simultaneous Measurement Method of Sulfur Dioxide and Nitrogen Dioxide in Atmosphere with Triethanolamine Cylindrical Filter Method
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説明
A simple and simultaneous measurement method of sulfur dioxide (SO2) and nitrogen dioxide (NO2) concentration in the atmosphere was examined.<BR>The method was as follows; a paper cylindrical filter treated with 30%(v/v) triethanolamine solution (TEA-CF) set in a shelter was exposed to adsorb SO2 and NO2 in the atmosphere. SO42- and NO2-in an aquous extract of the TEA-CF were analyzed with a ion chromatograph. It became evident that this method was a rapid determination and an effective simple measurement of SO2 and NO2 concentration in the atmosphere for the month long term.<BR>Influences of meteorological factors (temperature, relative humidity and wind velocity) on this method was not noticed for measurement of SO2. But, influences of temperature on this method described below was noticed for measurement of NO2; the nitration rate (adsorption quantity of NO2-to TEA-CF per 1 ppb of NO2 concentration a day, μgNO2/day/100 cm2/ppb NO2) was caused 18% increase owing to 10°C rise of temperature for measurement of NO2.<BR>By comparing data sets gained with this method to those with automated SO2 and NO2 analyzers, the correlation coefficients (r) and the sample numbers (n) were r=0.69 (n=200) for SO2 and r=0.79 (n=226) for NO2 in such case temperature correction were performed, and hence the correlation were recognized at 1% significant level. The confidence ranges of data gained with this method were ±28% for SO2 and ±22% for NO2 with respect to data reduced to ppb unit.
収録刊行物
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- 大気汚染学会誌
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大気汚染学会誌 23 (2), 85-91, 1988
公益社団法人 大気環境学会
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詳細情報 詳細情報について
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- CRID
- 1390282679594058112
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- NII論文ID
- 130003797169
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- COI
- 1:CAS:528:DyaL1cXkvFyjsr4%3D
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- ISSN
- 21863695
- 03867064
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可