Kannel, Prakash Raj Kanel, Sushil R. Lee, Seockheon Lee, Y. -S. 2024-01-20T17:32:21Z 2024-01-20T17:32:21Z 2021-09-02 2011-03 0167-6369 https://pubs.kist.re.kr/handle/201004/130589 The chemometric techniques were applied for evaluation of the seasonal variation of water qualities at 17 stations along a stretch of the Bagmati river of Nepal for 23 water quality parameters measured during 1999-2003. The application of discriminant analysis confirmed the classification of the water quality measurements into three seasons: pre-monsoon, monsoon, and post-monsoon affording 93.8% correct classification. Factor analysis and box-whisker plots facilitated to investigate the seasonal variation of water quality and the pattern of pollution sources. Application of FA revealed that the influence of water quality parameters changes from season to season. A parameter that is most important in contributing to water quality variation for one season may not be important for another season. Comparison of the discriminant analysis and factor analysis helped to identify the most important water quality parameters, as water temperature, DO, EC, COD, CL, Ca, alkalinity, PO4P, and TP, that are most important for seasonal variation and play a significant role in establishment of water quality control strategy. English SPRINGER URBAN RIVER SYSTEM KATHMANDU VALLEY NEPAL INDIA CLASSIFICATION GROUNDWATER POLLUTION STREAM BASIN Chemometrics in assessment of seasonal variation of water quality in fresh water systems Article 10.1007/s10661-010-1476-6 1 ENVIRONMENTAL MONITORING AND ASSESSMENT, v.174, no.1-4, pp.529 - 545 ENVIRONMENTAL MONITORING AND ASSESSMENT 174 1-4 529 545 scie scopus 000286830200040 2-s2.0-79952447762 Environmental Sciences Environmental Sciences & Ecology Article; Proceedings Paper URBAN RIVER SYSTEM KATHMANDU VALLEY NEPAL INDIA CLASSIFICATION GROUNDWATER POLLUTION STREAM BASIN Water quality Bagmati River Factor analysis Discriminant analysis Seasonal variation