Assessment of water quality and source apportionment in a typical urban river in China using multivariate statistical methods

摘要: Water quality in urban rivers is a product of the interactions human activities and natural processes. To explore water characteristics to assess impacts anthropogenic processes on river systems, we used multivariate statistical techniques analyse typical eastern China. Cluster analysis grouped sites into four clusters which were affected by wastewater treatment plant effluent, untreated domestic sewage, tributaries shipping, respectively. provided scientific basis for optimizing monitoring scheme. Three latent factors obtained from principal component analysis/factor interpreted as sewage surface runoff. Absolute indicated that most total dissolved phosphorus, nitrite, nitrogen, Na, K Cl resulted ammonia, organic carbon, sulfate Mg The pollution control measures nitrogen phosphorus proposed based source apportionment results. present study showed methods are effective identify main sources, quantify their relative contributions provide useful management suggesitions rivers.