1.
Welcome to my presentation
Air pollution
Student: Trần Thị Phương
Class: English Education course 32

2.
I.Situation III.Effects
Air Pollution
II.Causes IV.Solution

3.
I-Situation
 Air pollution is a global issue which human beings are facing
with. It becomes more and more serious, especially in developed
countries
 It threatens to not only living environment but also humans’
health

4.
Level of CO2 has been
increasing markedly in recent
years.
In some big cities in Viet nam
level of dust and smoke in the
air has been rising alarmingly
each year.

5.
II-Causes
1.Manufacturing 2.Natural process 3.Old means of transport

6.
1.The main cause of air pollution is manufacturing. This
source of pollution spews particulate matter and
chemicals into the atmosphere. Factories realese exhaust
into the environment, including: sulfur oxides, nitrogen
oxides, carbon monoxide and dioxide, etc...
The burning of fossil fuels is an aspect of manufacturing
that extracts poisonous components to the air.

7.
2.The second reason is natural process. The Earth itself
contributes to air pollution through volcanic
eruptions, wildfires, and other natural process, but it is
capable of recovering from those sources.

8.
.
3.Smoking and dust
from second-hand or old
means of transports
pollute the atmosphere
of big cities.

9.
III-Effects
Air pollution has huge effects on both environment
and hunman beings:
It results in global warming: ice-
melting, greenhouse effect, depletion of ozone layer.
Because of toxic air, people can get dangerous
diseases, such as: cough, lung
cancer, depression, etc...
The extinction of plants and animals can occur
on the Earth.

10.
ice-melting Lung cancer
Endangered animals

11.
III-Solutions
People may try to restrict population growth, use less
energy, improve energy efficiency, reduce waste, and move to
non-polluting renewable forms of energy
production. Also, automobile-produced pollution can be
decreased with highly beneficial results.
Output control, the opposite method, seeks to fix the
problems caused by air pollution. This usually means
cleaning up an area that has been damaged by pollution.
Input controls are usually more effective than output
controls. Output controls are also more expensive, making
them less desirable to tax payers and polluting industries.

12.
Natural energy
Social activities for environment

13.
Thanks for your attention