Determination of the Influence of Fuel Switching Regulation on the Sulfur Dioxide Content of Air in a Port Area Using DID Model

<div>Percentage distribution of average SO<sub>2</sub> concentrations per hour for (a) periods of ship movement in or out the dock versus (b) periods of no ship movement in or out the dock.</div>

Advances in Meteorology

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Figure 5

Figure 5: Determination of the Influence of Fuel Switching Regulation on the Sulfur Dioxide Content of Air in a Port Area Using DID Model 