2. Water Pollution
Water Pollution occurs when energy and other materials are released
into the water, contaminating the quality of it for other users.
3. Types
Surface water pollution
> found on the exterior of the Earth's crust,
oceans, rivers and lakes
Groundwater Pollution
>found in soil or under rock structure or aquifers
Aquifer- is a layer of rock or sand that can absorb and hold water. It feed
our rivers and supplies much of our drinking water.
4. Microbiological pollution
>microorganisms that thrives on water and fishes
that can cause illness to land animals and humans
Oxygen Depletion pollution
>microorganisms that in water and feeds
on biodegradable substances
5. Ways in which pollution can occur
Point Source Pollution – it is a pollution
comes from a single location.
Nonpoint-source Pollution – a great deal of
water happens not from one single source
but from many different scattered sources.
Transboundary Pollution – pollution that
enters the environment in one place has
an effect hundred or even thousands of
miles away.
6. 2 Main Ways of Measuring the Quality
of Water
Chemical Indicaator - to take samples of the
water and measure the concentration of
different chemicals that it contains.
Biological Indicator – examining the fish,
insects and other invertebrates that the water
will support.
7. Different Causes of Water
Pollution
Marine Dumping
Industrial Waste
Sewage, mainly
from households
8. Different Causes of Water
Pollution
Nuclear waste
Oil pollution
Underground
storage leaks
