금강의 수질, 어패류, 이끼 및 토양중의 중금속의 함량 조사 = A Survey on the Water Quality and the Heavy Metal Content of the Fish, Shellfish, Moss and Soil in Kum River

다국어 초록 (Multilingual Abstract)

This survey is to study the corresponding degree of water pollution of the Kum river areas, covering the eight places of main stream of the river from the Daechung dam to Kangkyung county, and two trivutary streams of Kap stream, and Miho stream. Besides, the heavy metal content of the fishes, shellfish, moss, and soil in the main stream of Kum river is investigated, whose results are as follows:
1. The water quality
The water quality of the area from the Daechung dam to the Sintanjin county is first grade for the standard of drinking water in terms of BOD, COD values, that of both Kap stream and Miho stream is third or fourth grade respectively, and the other areas are turned out to be second grade.
The water of the Daechung dam to the Sintanjin has little NO₂-N and ??, which can be said to be possible for the drinking water. The quantity of ?? and ?? in the water of all the areas is below the standard for the available drinking water, but, that of Kap stream and Miho stream is about two or three times higher than other areas.
2. Heavy metal
The content of Cd, Cu, Mn, and Zn are shown to be comparatively less than that of Co, Fe, Ni, and Pb. And the content of Cu, Mn, Zn are less than the possible standard value for the drinking water.
The relationship of the heavy metal content of the fish and shellfish were in order of Co>Zn>Cu>Cd, for the moss, Zn>Pb>Co>Cu>Cd, and for the soil, Zn>Pb>Cu>Co>Cd. The most of collecting samples in the Kumnam area have lots of heavy metals, and Pb is well contained in shells than fishes.
When summarize the above result, the water in the Daechung dam and Sintanjin area is comparatively favorable for the drinking water, and the water quality below the Kumnam areas appears to be wores because of influx of Kap stream and Miho stream.
In short, the necessary counter measure is to be required for the good preservation of water of fine quality in Kum River.