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Water Pollution Essay

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Below is an essay on "Water Pollution" from Anti Essays, your source for research papers, essays, and term paper examples.

WATER POLLUTION
INTRODUCTION
• Water quality management is concerned with the control of
pollution from human activity so that the water is not
degraded to the point it is no longer suitable for intended
uses.
• Water quality management is also the science of knowing
how much is too much for a particular water body.
• Water is typically referred to as polluted when it is impaired
by anthropogenic contaminants and either does not support
a human use, like serving as drinking water, or undergoes a
marked shift in its ability to support its constituent biotic
communities, such as fish.
WATER POLLUTION CATEGORIES
• Surface water
– Point source pollution: It refers to contaminants that enter a
waterway through a discrete conveyance, such as a pipe or
ditch. For example; discharges from a sewage treatment
plant, a factory, or a city storm drain (domestic sewages,
industrial wastes, municipal sewage).
– Non-point source pollution: It refers to diffuse contamination
that does not originate from a single discrete source. It has
multiple discharge points. For example; contaminated
stormwater washed off of parking lots, roads and highways
• Ground water
– Groundwater pollution is often caused by pesticide
contamination from the soil, this can infect our drinking water
and cause huge problems.
PATHOGENS
• Includes viruses, bacteria and protozoa excreted by
diseased persons or animals;
• When discharged into surface water they make the water
non-potable, i.e., unfit for drinking;
• If concentration of pathogens is sufficiently high water may
also be unsafe for swimming and fishing;
• Certain shellfish can be toxic because they concentrate
pathogenic organisms into their tissues making the toxicity
levels in the shellfish much greater than the levels in the
surrounding water.
OXYGEN DEMANDING WASTES
• Anything that can be oxidized in the receiving water
with the consumption of dissolved molecular oxygen
is termed as oxygen demanding...

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