Why is dissolved oxygen an important water quality parameter? Are higher or lower values better for water quality? | Cheap Nursing Papers

Why is dissolved oxygen an important water quality parameter? Are higher or lower values better for water quality?

Why is dissolved oxygen an important water quality parameter? Are higher or lower values better for water quality? What is the saturation concentration (mg/L) of dissolved oxygen in freshwater at 20oC?. I need an expert in environmental studies to help me. gmail.

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