to the list of parameters
for a more in-depth look at turbidity (from our newsletter)
Turbidity is a measure of water clarity. Turbidity is affected by suspended
particles, or solids that cannot dissolve, including clay, silt, sand,
algae, and plankton. Natural factors like wave action, changes in seasonal
light intensity, and erosion, all can alter turbidity. However, often
times turbidity is increased by human activities. Clear cut logging,
construction, and mining all greatly increase unnatural soil erosion
which rapidly changes turbidity. Regular monitoring of turbidity can
help detect trends that might indicate increasing erosion from these
activities. Changes in turbidity can have dramatic impacts on the aquatic
· Suspended sediments trap heat, raising the temperature of
the water and decreasing the amount of oxygen it can hold.
· When turbidity levels are high, less light passes through
the water, and photosynthesis slows, decreasing oxygen levels and
· Water that is highly turbid can clog the gills of fish and
bury their eggs.
Turbidity was our Featured Parameter for October 2003. Learn
more about turbidity taken from our Newsletter (Volume 1).
Observations made on Stream Team