용존산소량 in Korean
용존 산소량(溶存酸素量)[명사]하천·호수 따위의 물속에 녹아 있는 산소의 양. 수질 오염을 나타내는 척도의 한 가지로, 보통 깨끗한 하천에서는 7∼10ppm임. 디오(DO).
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