Urban air pollution

Question 1

2 main types of air pollution

Answer 1

1. Particulate air pollution
2. Photochemical pollution

Question 2

Particulate air pollution

Answer 2

mixture of solids and liquid droplets floating in air

Question 3

Photochemical pollution

Answer 3

air pollution containing ozone chemical compounds formed by the action of sunlight e.g. LA

Question 4

Different types of air pollution

Answer 4

1. Particulate matter
2. Carbon monoxide, sulphur oxide
3. Carbon dioxide
4. Ozone
5. Nitrogen dioxide
   - air pollution in LICs or NEEs is more severe because of fewer/lower environmental standards e.g. ULEZ tolls

Question 5

Temperature inversion

Question 6

Smog

Answer 6

mixture of smoke and fog
* occurs when smoke particulates and sulphur dioxide from burning mix with fog
* its photochemical- sunlight reacts chemically with emissions (vehicle + industrial)
* present in modern cities with wet and cold climates e.g. Mexico City

Question 7

CASE STUDY- London

Answer 7

Problems
- Ozone pollution
- Particulate matter
- Nitrogen oxide
Solutions
* free download app that informs people about the air quality
* cleaning up bus … by making them less polluting
* congestion charges in central London reduces traffic
* new and tighter standards for the London low emission zone
* invest in record amounts of money in cycling
* international agreements concerning air pollution
* laws and policy concerning air quality
* cars have annual emmission tests
* clean air strategy - UK sets standards

Question 8

Urban air quality