Statistical study of predicted concentration of heavy metals in flue gas from stationary emission source

摘要

On the basis of measured concentration value in flue gas from the stationary emission source, the predicted concentration value of heavy metals were estimated at 1 000 meter's distance on the lee from the stationary emission source. And predictedvalue was compared with measured value in the air at this point. As a result of comparison, Mg, Fe, Zn and Pb were recognized that the variation of concentration was similar between predicted and measured value. In addition, in order to investigate theverification of predicted value, cluster analysis and factor analysis were carried out for the measured value at the point of 1 000 meters on the lee from stationary emission source. The results of cluster analysis and factor analysis, Fe, Zn and Pb wereestimated to be caused by the stationary emission source because the measured value were similar to the predicted value. Mg and Ca were estimated to he caused by soil because many of those were detected from coarse particles over 10μm in diameter.