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Flashcards do conjunto (9)
- 1Urban Air Pollution is an age old problemEdward I (1272 - 1307) - Ban on sea coal in London
Angus Smith - 'On the air and rain of Manchester' (1852) - Coined the term acid rain - 2The 1952 London Smog and human healthWinter 1952 - very cold
Burning of low grade coal (domestic and power stations)
Temperature inversion - cold stagnant air trapped under warm air
Fog + particulates + sulphur - 3Mid-late 20th century action on air pollution1. Beaver Committee - smoke as the key pollutant responsible for increased mortality
2. UK Clean Air Acts (1956)
-Smoke free zones
- Minimum chimney height
3. US Clean Air Acts (1970)
-Similar measures - 4Early strategy for urban air pollution'Disperse and dilute'
Re-siting power stations to rural locations - 5Primary pollutants in urban atmosphereGases: CO, CO2, NOX, SO2
Particulates: PM10/2.5 - dust, metallic particles, asbestos
VOCs (Volatile Organic Compounds) - benzene, propane - 6Secondary pollutantsGround level ozone is created from the reaction of NOX + VOCs + Sunlight
(Summer temperatures/ stagnant air) - 7The importance of air pollution events (episodes) Characteristics of urban air pollution eventsHigh emission of pollutants
Lack of dispersal of pollutants - progressive accumulation
Winter smogs
Summer smogs - 8What happens with winter smog?Winter high-pressure temperature inversions limit the mixing depth of the lower atmosphere
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- GEOG 10611 Environmental Pollution FlashCards sobre Sem título, criado por Stephen Booth em 28-12-2016.
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- Stephen Booth
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