본문 바로가기
  • Home
Basic Search

Evaluation of Pollution Level Attributed to Nonpoint Sources in Nakdonggang Basin, Korea

Jae-Woon Lee 1,  Hun-Gak Kwon 1,  CHOI，HAN-YOUNG 2

1국립환경과학원 낙동강물환경연구소
2을지대학교

Accredited

ABSTRACT

In this study, the nonpoint sources were evaluated by calculating the Nadonggang basinregional water quality and nonpoint source pollution load discharged. And were selected the banksof first administration based on the results and the direction of the next administration. As a results of estimating the water quality about BOD concentration in the mid influence area inthe Nakdonggang basin, it was founded that 10 sites for ‘Ia’ water quality level, 6 sites for ‘lb’ waterquality level, 5 sites for ‘Ⅱ’ water quality level, 1 sites for ‘Ⅰ’ water quality level. The estimation ofCOD concentration in the mid influence area, It showed that 9 sites for ‘Ib’ water quality level, 6sites for ‘Ⅱ’ water quality level, 6 sites for ‘Ⅲ’ water quality level, 1 site for ‘Ⅳ’ water quality level. The assessment of water quality made Mid influence area of Gumhogang, Nakdong Goryung, Nakdong Milyang and Namgang selected as the mid influence area of high pollution. And delivery loads of nonpoint sources were calculated for mid influence area in Nakdonggang basin(max delivery load : 17,706.7 ㎏/day for Gumhogang influence area). As the result of calculating NPS(nonpoint sources) delivery load and water quality at influence area in Nakdonggang basin, Gumhogang influence area was selected as an area for management priority among nonpoint sources.

Statistics

  • 371 Viewed
  • 159 Downloaded

Tools

Issue List

Citation status

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

Basic Search Advanced Search