| Title |
Pollution Assessment of Sediment in Lakes of Buk-han River Basin |
| Authors |
이보미 ( Lee Bo-Mi ) ; 성기선 ( Seon Seong-Ki ) ; 김국회 ( Kim Guk-Hui ) ; 문권영 ( Moon Gwon-Young ) ; 신명철 ( Shin Myoung-Chul ) ; 홍정기 ( Hong Jung-Ki ) ; 김갑순 ( Kim Kap-Soon ) ; 유순주 ( Yu Soon-Ju ) ; 허인애 ( Huh In-Ae ) ; 노혜란 ( Noh Hye-Ran ) |
| DOI |
https://doi.org/10.15681/KSWE.2019.35.2.105 |
| Keywords |
Buk-han river; Lake; Metals; Organic matter; Pollution assessment; Sediment |
| Abstract |
The objective of this study was to investigate the pollution assessment of organic matters, nutrients, and metals in sediment in major lakes (5 lakes and 17 sites) of Buk-han river using various sediment pollution assessment guidelines and indices. The concentrations of organic matters and nutrients were lower than class IV (Sediment pollution assessment guidelines of Korea) and Severe Effect Level (SEL, Sediment pollution assessment guidelines of Ontario). This results indicated that the lakes sediments were unpolluted and tolerable level for sediment dwelling organisms by organic matters and nutrients. However, several sites of Chuncheon and Soyang lakes were evaluated “heavily polluted” level by organic index (Org-index). The order of lakes by metals concentrations from the one with the highest concentration was Hwacheon, Chuncheon, Cheongpyeong, Uiam, Soyang. All lakes except Hwacheon were assessed unpolluted to marginally and tolerable level for sediment dwelling organisms by metals based on sediment pollution assessment guidelines (Korean and Ontario), indices of geoaccumulation (Igeo), pollution loading (PLI) and ecological risk (RI). In Lake Hwacheon, every investigated sites were polluted with metals, especially Hg, based on sediment pollution assessment guideline of Korea and indices (Igeo, PLI and RI). The dwelling organisms in sediment of Hwacheon Lake were likely to be severed by metals. |