Air Pollution in HK

1
Air Pollution in HK
2
Air Pollution in HK

• What is air pollution?
• Main source of air pollution.
• The effects of air pollution.
• Air pollution index.
• The action taken to reduce air pollution.
• Some experiments about air pollution.

3
What is an air pollution?

• Air pollution is caused by emissions of
  harmful gases and particulate matter.The most
  common air pollutants are
• total and respirable suspended particulates (TSP
  and RSP)
• sulphur dioxide (SO2)
• nitrogen dioxide (NO2)
• carbon monoxide (CO)
• ozone (O3) and photochemical oxidants
• lead (Pb)

4
Sources of air pollution

• The air pollution in HK is caused by
  the emission from vehicles, car and industry.
• Vehicle exhaust gases contain suspended
  particulates, hydrocarbons and nitrogen oxides.
• Industry emits pollutants such as
  sulphur dioxide.

5
The effect of air pollution

• Air pollution affects everybody in HK,
  since it may cause discomfort and adverse health
  effects. High level of pollutant particles causes
  long-term health effects. Children, elderly and
  those who have heart or lung problems suffer the
  most when the air is polluted. So Hong Kong has
  Air Pollution Index to let us know about the
  quality of the air.

6
Air pollution index

• Air Pollution Index(API) is a simple
  way of describing the level of air pollution and
  enhance public awareness. Everyday,
  Environmental Protection Department (EPD) reports
  the air pollution index.
• There are 11 Ambient Stations and 3
  Roadside Stations in HK to monitor the air
  pollution .

7
The map of Roadside Station and Ambient Station
8
The photo of Ambient Station
9
The action has been taken to reduce air pollution

• Framework of control air pollution
• Control Programme
• -Stationary Sources control
• -Motor Vehicles control
• Achievements

10
Experiments concerning air pollution

• Test the pH value of the air from the car.
• Test the pH value of the air from different
  district.
• Test the amount of the dust particles in the air
  from different districts.