Water
Pollution
Microbiology
Water
from
natural
environment,
especially
the
rainwater
and
groundwater,
is
of
a
high
quality.
But
man
made
activities
like
discharge
of
noxious
substances,
including
biocides,
oil
and
sewage,
into
waterbodies
are
spoiling
the
aquatic
environments
to
the
maximum.
Water
pollution
is
becoming
a
serious
problem
now
a
days
owing
to
the
increase
in
human
population
and
rapid
industrialization.
Apart
from
chemical
pollutants,
microorganisms
also
contribute
to
the
deleterious
effects
on
aquatic
environments.
Simply
their
increased
growth
in
an
aquatic
ecosystem
can
affect
the
ecological
balance
with
complicated
consequences
as
in
eutrophication.
A
number
of
pathogenic
microorganisms
are
transmitted
through
contaminated
water.
Although
various
standards
have
been
proposed
for
the
microbiological
qualities
of
waters,
maintaining
the
standards
still
remains
a
difficult
task
in
many
cases.
Microorganisms
have
also
been
related
to
deterioration
and
corrosion
in
water
distribution
systems.
However,
recent
trends
in
environmental
microbiology
include
the
use
of
microorganisms
as
fighters
of
water
pollution.
Thus,
the
role
of
microorganisms
in
water
pollution
is
not
only
detrimental
but
also
beneficial,
maintaining
nature's
ecological
balance.
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