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Items and Indicators of Evaluation for Decision of Priority in Improving River Water Quality

Park Jong Seok 1 RHEE, KYOUNGHun 1

1전남대학교

Accredited

ABSTRACT

This study selected the evaluation items and indicators of evaluation provided how to decide the priority of river water improvement and grasped the relative importance through stratification of the evaluation points through AHP technique exercised by group of experts. Below conclusion was acquired based on the study done. Firstly, for quantitative evaluation of the factors, it has been divided into 7 sections in the histogram based on the calculation of the average and standard deviation of each evaluation factor and each factor’s index has been calculated based on probability range of each section’s normal distribution. Secondly, the critically of the 6 evaluation sections applied in the classification model development to see the priority for river water quality improvement is in order of pollutant delivery load 29.3%, water quality 23.1%, flow rate 19.0%, density of the emission load 12.4%, emission load 10.5%, area 5.8%. Finally, the most important category among the 20 subcategories applied at the classification model is the flow rate being followed by BOD pollutant delivery load, TOC pollutant delivery load and Area. Being at order of TP density of emission load, SS pollutant delivery load, TN emission load, SS concentration showed to be relatively less important factors.

Citation status

* References for papers published after 2023 are currently being built.