Abstract
Gaseous formic acid (HCOOHg) and acetic acid (CH3COOHg) were measured every 30 minutes during a 10 hour daylight period in August, and a 24 hour period in October, 1990 in the urban atmosphere of Yokohama, Japan. An aqueous nebulizer sampler and ion-chromatography exclusion (ICE) were used for the measurements. In the August experiment (0800-1800 local time) the mean HCOOHg concentration was found to be 7.3±2.5 ppbv. The mean CH3COOHg concentration was 3.8±1.2 ppbv. In the 24 hour experiment in October, concentrations of both acids were lower between 0800-1800 than during the same time-period in August (mean HCOOHg=4.4±2.7 ppbv, mean CH3COOHg=1.4±0.5 ppbv). In October, concentrations of both acids were higher in daylight hours than at night; sporadic high HCOOHg concentrations were observed. In both experiments the ratio HCOOHg/CH3COOHg of individual samples was usually ≥2.0 (mean ratio of 2.0 in August, 3.1 in October).
| Original language | English |
|---|---|
| Pages (from-to) | 85-94 |
| Number of pages | 10 |
| Journal | Journal of Atmospheric Chemistry |
| Volume | 14 |
| Issue number | 1-4 |
| DOIs | |
| Publication status | Published - 1992 Apr |
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Keywords
- acetic acid
- formic acid
- nebulizer sampler
- urban atmosphere
ASJC Scopus subject areas
- Environmental Chemistry
- Environmental Science(all)
- Atmospheric Science
Cite this
Gaseous formic and acetic acids in the atmosphere of Yokohama, Japan. / Schultz Tokos, J. J.; Tanaka, S.; Morikami, T.; Shigetani, H.; Hashimoto, Y.
In: Journal of Atmospheric Chemistry, Vol. 14, No. 1-4, 04.1992, p. 85-94.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gaseous formic and acetic acids in the atmosphere of Yokohama, Japan
AU - Schultz Tokos, J. J.
AU - Tanaka, S.
AU - Morikami, T.
AU - Shigetani, H.
AU - Hashimoto, Y.
PY - 1992/4
Y1 - 1992/4
N2 - Gaseous formic acid (HCOOHg) and acetic acid (CH3COOHg) were measured every 30 minutes during a 10 hour daylight period in August, and a 24 hour period in October, 1990 in the urban atmosphere of Yokohama, Japan. An aqueous nebulizer sampler and ion-chromatography exclusion (ICE) were used for the measurements. In the August experiment (0800-1800 local time) the mean HCOOHg concentration was found to be 7.3±2.5 ppbv. The mean CH3COOHg concentration was 3.8±1.2 ppbv. In the 24 hour experiment in October, concentrations of both acids were lower between 0800-1800 than during the same time-period in August (mean HCOOHg=4.4±2.7 ppbv, mean CH3COOHg=1.4±0.5 ppbv). In October, concentrations of both acids were higher in daylight hours than at night; sporadic high HCOOHg concentrations were observed. In both experiments the ratio HCOOHg/CH3COOHg of individual samples was usually ≥2.0 (mean ratio of 2.0 in August, 3.1 in October).
AB - Gaseous formic acid (HCOOHg) and acetic acid (CH3COOHg) were measured every 30 minutes during a 10 hour daylight period in August, and a 24 hour period in October, 1990 in the urban atmosphere of Yokohama, Japan. An aqueous nebulizer sampler and ion-chromatography exclusion (ICE) were used for the measurements. In the August experiment (0800-1800 local time) the mean HCOOHg concentration was found to be 7.3±2.5 ppbv. The mean CH3COOHg concentration was 3.8±1.2 ppbv. In the 24 hour experiment in October, concentrations of both acids were lower between 0800-1800 than during the same time-period in August (mean HCOOHg=4.4±2.7 ppbv, mean CH3COOHg=1.4±0.5 ppbv). In October, concentrations of both acids were higher in daylight hours than at night; sporadic high HCOOHg concentrations were observed. In both experiments the ratio HCOOHg/CH3COOHg of individual samples was usually ≥2.0 (mean ratio of 2.0 in August, 3.1 in October).
KW - acetic acid
KW - formic acid
KW - nebulizer sampler
KW - urban atmosphere
UR - http://www.scopus.com/inward/record.url?scp=0026589988&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026589988&partnerID=8YFLogxK
U2 - 10.1007/BF00115225
DO - 10.1007/BF00115225
M3 - Article
AN - SCOPUS:0026589988
VL - 14
SP - 85
EP - 94
JO - Journal of Atmospheric Chemistry
JF - Journal of Atmospheric Chemistry
SN - 0167-7764
IS - 1-4
ER -