A. 
| B. 
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| Figure 8 Comparison of observed and simulated SO2 concentrations for (A) an isolated power plant in a rural area, and (B) for an urban area in central United States. | |
| A.
| B.
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| Figure 8 Comparison of observed and simulated SO2 concentrations for (A) an isolated power plant in a rural area, and (B) for an urban area in central United States. | |