露天煤矿排土场附近地下水污染区的监测点优化

By principal components analysis and MATLAB auxiliary tool, the case analysis was carried on taking an example of the monitor of groundwater pollution area near the waste dump of open pit coal mine of Xinqiu in Fuxin. Main pollution factors were determined from all the pollution factors, and the monitors were optimized. The data pretreatment methods of principal components analysis were discussed by the calculation of this example; the calculation results were prepared with the two methods of standardization and normalization. The result shows that the results analysed with two kinds of pretreatment methods of data are basically consistent.