1. WATER POLLUTION

2. What is water
pollution?
Well Pollution is the
contamination of the
natural environment
with harmful
substances often as
a consequence of
human activities.

3. There are many
differents types of
pollution as:
• Water pollution
• Air pollution
• Land contamination

4. How does water
pollution occurr?
Water pollution ocurrs when a lot of
chemicals, sewage and fertilizers are
dropped and if it is not treated before
being discharged
into waterways,
serious pollution
is the result.

5. Types of water pollution
 Microbiological
Chemical
Oxygen-depleting Substances
Nutrients
Oil pollution

6. CAUSES
Domestic households,
industrial and
agricultural practices
produce wastewater
that can cause pollution
of many lakes and
rivers.
Dumping of litter in the
sea can cause huge
problems in marine
animals and may result
in death .

7. Nuclear waste is
produced from
industrial, medical and
scientific processes
that use radioactive
material. Nuclear
waste can have
detrimental effects
on marine habitats

8. The effects of water pollution
are not only devastating to
people but also to animals, fish,
and birds. Polluted water is
unsuitable for drinking,
recreation, agriculture, and
industry.
Effects of water
pollution

9. What can we do to
prevent water pollution?
• Be careful about what you
throw down your sink or
toilet.
• Use environmentally
household products, such
as washing powder,
household cleaning agents
and toiletries.
• Take great care not to
overuse pesticides and
fertilisers.
• Don't throw litter into
rivers, lakes or oceans.

10. CONCLUSION
I think that we have
to change our habits
because the water is a
natural resource very
important and if we
follow the same way
till now, one day
maybe our sons woke
up and they won´t
have water to drink.