A Monitor's Guide to Water Quality


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Some water bodies have naturally high levels of chlorophyll whereas others have naturally low levels of chlorophyll. In general, lakes and rivers in the Arctic tend to have naturally low chlorophyll, but this is not always true. Values over 75 µg/L indicate hypereutrophic conditions that are not healthy.

Chlorophyll is influenced by: water temperature, phosphorus, at times nitrogen

Chlorophyll influences : dissolved oxygen, organic carbon