Air Pollution

Question 1

How long can survive without food or water than breath?

Answer 1

3 minutes air/ 3 days water/ 3 weeks food.

Question 2

How much air do we breathe in per day?

Answer 2

25kg, from food only 1.5kg, 15 fold more vulnerable taking in harmful substances from air.

Question 3

What are the 5 primary pollutants?

Answer 3

CO, NOx, Hydrocarbons, SOx, Particulates (or Aerosols).

Question 4

Where do pollutions come from?

Answer 4

Industry, Power Generation, Transport.

Question 5

What is the main source of pollution?

Answer 5

Transportation.

Question 6

Which is the major individual pollutant on mass basis?

Answer 6

CO

Question 7

Which is most important pollutant on effect basis?

Answer 7

Hydrocarbons

Question 8

What is the natural source of CO?

Answer 8

Volcanoes and forest fires

Question 9

Natural source of HCs?

Answer 9

Plants and animals decay, anaerobic decay to methane

Question 10

Natural source of SOx?

Answer 10

H2S from organic decay oxidsed by 03 to SOx.

Question 11

Natural source of NOx?

Answer 11

Bacteria in soil gives N2O and NO

Question 12

Natural source of Aerosols?

Answer 12

sea salts, wind blown dust, volcanoes, forest fires