8) Air Pollution Flashcards
Air is a mixture of gas.
Name 3 components of air.
nitrogen
oxygen
carbon dioxide
What one use of oxygen in the air for living things?
Oxygen is needed for respiration.
What are air pollutants?
They are harmful substances found in the air.
What does PSI stand for? (in Singapore)
Pollutants Standard Index
What does PSI measure?
The amount of air pollutants in the air.
There are 4 main air pollutants.
Name one of them.
carbon monoxide
sulfur dioxide
nitrogen oxides
particulate matter
When fossil fuel is burnt, which 2 air pollutants are produced?
sulfur dioxide
particulate matter
Which air pollutant is produced when there is incomplete burning of fossil fuel?
carbon monoxide
Which air pollutant is produced by the hot engine of motor vehicles?
nitrogen oxides
Which air pollutant is produced by forest fire?
particulate matter
Which air pollutant is produced by lightning strikes?
nitrogen oxides
Which air pollutant is produced by volcanos?
sulfur dioxide
Carbon monoxide can cause respiratory problems for humans.
What is the other harmful effect?
It can cause poisoning as it reduces the ability of the blood to carry oxygen.
Nitrogen oxides can cause respiratory problems for humans.
What is the other harmful effect?
It can form acid rain to corrode buildings and kill plants and animals.
Sulfur dioxide can cause respiratory problems for humans.
What is the other harmful effect?
It can form acid rain to corrode buildings and kill plants and animals.
How are acid rains formed?
When sulfur dioxide and nitrogen oxides dissolves in rainwater.
What are some of the harmful effect of acid rain?
1) Corrode buildings and statue
2) Kill plants and fishes
What is the cause of haze?
Forest fires
What are some of the harmful effect of haze?
Give 1 example.
1) Causes visibility of the surrounding to drop
2) Causes irritation to eyes, throat and mouth.
Name one way we can reduce air pollution.
1) Walking or cycling instead of using motor vehicles.
2) Traveling by public transport instead of using a car.
3) Use hybrid cars instead of motor vehicles.
4) Turn off idling vehicles.
5) Use less electricity.
6) Industrial plants and factories are to install exhaust filters to reduce air pollutants released into the air.
7) Reduce, reuse and recycle materials to reduce the amount of rubbish burnt in incineration plants.
8) Use biodegradable packaging to reduce the amount of rubbish burnt in incineration plants.
