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| Content Provider | Springer Nature Link |
|---|---|
| Author | Nishikawa, Yoshiri Kannari, Akiyoshi |
| Copyright Year | 2010 |
| Abstract | Annual emission map for NH$_{3}$, NO$_{X}$, and SO$_{2}$ within Osaka prefecture was shown according to the EAGrid2000-Japan emission database. The median emission of NH$_{3}$, NO$_{X}$, and SO$_{2}$ was 1.94, 24.8, 1.32 ton/km$^{2}$/year, respectively, while that at 11 passive sampling sites was 1.61, 17.3, 0.74 ton/km$^{2}$/year, respectively. Monthly emission for NH$_{3}$ showed apparent seasonal trends, being high in summer and low in winter. That for NO$_{X}$ and SO$_{2}$ was slightly high in winter and low in summer and constant through the year, respectively. Atmospheric concentration of NH$_{3}$, NO$_{2}$, HNO$_{3}$, and SO$_{2}$ by the passive method was compared with corresponding emission inventory. Average concentrations of HNO$_{3}$, SO$_{2}$, NH$_{3}$, and NO$_{2}$ in June were 16–67, 23–135, 21–173, and 149–873 nmol/m$^{3}$, respectively, while those in October were 5–21, 16–72, 14–196, and 169–1,167 nmol/m$^{3}$, respectively. The emission inventory flux of SO$_{2}$, NO$_{X}$, and NH$_{3}$ was calculated both within 1 × 1- and 3 × 3-km mesh. It was a small difference between June and October for SO$_{2}$ and NO$_{X}$ in the both meshes. For NH$_{3}$, emission flux in June was around twofold of that in October. The NH$_{3}$ correlation between concentration and emission flux was excellent in the 1 × 1 km mesh, although somewhat decreased in the 3 × 3 km mesh. In the case of NO$_{2}$, the correlation for the 3 × 3 km mesh, however, was more increased than the 1 × 1 km mesh. The correlation for HNO$_{3}$ and SO$_{2}$ was a small difference with the both meshes. Monthly concentrations of NH$_{3}$, NO$_{2}$, HNO$_{3}$, and SO$_{2}$ were compared with their corresponding gases emission at whole-year survey sites. Concentration of NH$_{3}$ was high from July to November, while emission of NH$_{3}$ was high from June to September (summer) and low from December to March (winter). Trend of NO$_{2}$ concentration was high in winter and low in summer, a similar tendency to that of NO$_{X}$ emission. On the other hand, the trend of HNO$_{3}$ concentration was high in summer and low in winter. There was no particular seasonal trend of SO$_{2}$ concentration and SO$_{2}$ emission had also no seasonal variation but was constant. |
| Starting Page | 229 |
| Ending Page | 237 |
| Page Count | 9 |
| File Format | |
| ISSN | 00496979 |
| Journal | Water, Air, and Soil Pollution |
| Volume Number | 215 |
| Issue Number | 1-4 |
| e-ISSN | 15732932 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2010-05-19 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Emission inventory Third-order mesh code Passive method NH$_{3}$ NO$_{2}$ NO$_{X}$ HNO$_{3}$ SO$_{2}$ Climate Change Hydrogeology Soil Science & Conservation Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Environment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology |
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