Study on pollution of different tributaries of Bai Ta Pu river based on principal component analysis

On the basis of understanding the indexes of different tributaries of Bai Ta Pu river and according to the contribution rate of each principal component, the comprehensive score of different tributaries was calculated through principal component analysis. Each tributary was ranked according to the score, and the evaluation results were analyzed. It is pointed out that the tributary with the highest comprehensive index of Bai Ta Pu river is in Shi Jia Zhai bridge and the tributary with the lowest comprehensive index is in De Sheng Tun bridge.