Download familiarization

PowerPoint 15.1
What do you call this
kind of pollution?
What causes this
layer of darkness?
What kinds of illnesses
will air pollution cause?
How will this affect
the people’s health?
What other kinds of
pollution do you know?
What kind of pollution do we have in
Hong Kong?
In Hong Kong we have air pollution.
There is a lot of smoke
Air
Pollution
What does it cause?
It causes breathing problems.
Sources of Air Pollution in Hong Kong
2004
Power Plants
3%
where
1(places
electricity is produced)
1%
2 Vehicles
15%
3 Ships
4Construction Dust
6%
50%
5Airplanes
6Other
25%
What problems
will this type of
pollution cause?
What problems
will this type of
pollution cause?
What problems will this type of
pollution cause?
What kind of pollution do we have in
Hong Kong?
In Hong Kong we have water pollution.
There is a lot of rubbish in the river
and the sea.
Water
Pollution
What does it cause?
It causes dirty water.
What problems will this type of pollution
cause?
What problems will this
type of pollution cause?
What kind of pollution do we have in
Hong Kong?
In Hong Kong we have land pollution.
There is a lot of rubbish.
Land
Pollution
What does it do to the land?
It makes the land dirty.
What kind of pollution do we have in
Hong Kong?
In Hong Kong we have noise pollution.
There are a lot of roadworks and
traffic.
Noise
Pollution
What does it cause?
It causes hearing loss.
What problems will this type of pollution
cause?
This section is optional.
It’s intended for teacher’s reference.
Problems caused:
• Discoloured, smelly water
• Water turns poisonous
when this water reaches a
storm drain or river.
Prevention:
• Store chemicals properly in
well-ventilated area
• Use chemicals that break
down or decay naturally
more quickly.
• Don’t mix different waste
chemicals
• Find out what the health
risks are.
Teacher’s reference only
natural & artificial foam
• Natural sources, failed septic tanks,
chemical spills or soap/ detergent can
cause foam in the drain, river or
stream.
• Soapy foam is usually bright white with
a soapy, fishy smell.
Problems caused:
• Will contaminate the water system.
• Can cause algae to bloom.
• Will cause harm to the fish and ecosystem.
Prevention:
• Maintain septic tanks
• Wash cars or things on a grassy area
• Throw soapy water into the proper
places.
Teacher’s reference only
animal manure
Problems caused:
• Animal wastes contain lots
of bacteria, viruses and
give nutrients to the ground
and surface water
• Bacteria, and viruses are
harmful to humans, water
and sea creatures.
• Nutrients in surface water
make aquatic plants and
algae grow.
Prevention:
• Keep manure piles away
from water areas.
Teacher’s reference only
The End