do wetlands affect water quality?
Wetlands are direct connections between
rivers and the cooler groundwater. The wetlands absorb water
which may become part of the groundwater. During floods, they
can absorb excess floodwater. Wetlands are also a filter for
pathogens, metals, and pollutants. Wetlands delay hazardous
chemicals and contaminants from entering the main river all at once.
Because of this, wetlands serve to dilute toxic chemicals and allow
the slow release of these chemicals into the main water supply.
In addition, wetlands increase the
amount of dissolved oxygen in the water by filtering out bacteria.
Remember that some bacteria consume oxygen. Therefore, water
with fewer bacteria will tend to have more dissolved oxygen.
Wetlands = natural water filters
For more detailed information on wetlands,
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