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Suspended solids are small particles which remain

in suspension in water. The number of suspended
solids is an important indicator of water quality.

Suspended solids are important because pollutants
and pathogens are carried on the surface of these
particles. Believe it or not, the smaller the particle
size, the greater the pollutant load that is likely to
be carried.

Turbidity
Turbidity is the cloudiness or haziness of water
caused by individual particles (suspended solids)
that are generally invisible to the naked eye.
Measurement of turbidity is a key test of water quality.
The higher the turbidity, the greater likelihood of
bacteria and other contaminants being in the water.