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Urban air pollution What can you remember?

Urban air pollution What can you remember? . List the major sources of urban air pollution. What is a secondary pollutant? Why is photochemical smog greater in the afternoons than the mornings? Outline the effects on humans and other species. Learning outcomes. All of you should be able to:

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Urban air pollution What can you remember?

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  1. Urban air pollutionWhat can you remember? • List the major sources of urban air pollution. • What is a secondary pollutant? • Why is photochemical smog greater in the afternoons than the mornings? • Outline the effects on humans and other species.

  2. Learning outcomes All of you should be able to: • Identify the problems of urban air pollution affecting Mexico City • Describe pollution management strategies for urban air pollution Most of you might be able to: • Evaluate the management strategies

  3. Formation of particulates Burning organic materials or fossil fuels release small particles of carbon or other substances. We call them: • particulates • particulate matter (PM10) (PM2.5) These particulates are not filtered by our nose and lungs so can cause problems in our respiratory system.

  4. Case Study – Mexico City Article: • What are the consequences of air pollution in Mexico City? • What are the key air pollutants in Mexico City? • What are the two most serious? • Describe what you can see in the graph. • What are the main programmes to combat air pollution?

  5. Let’s take a look at the governments’ recommendations…

  6. Pollution Management You have been put in charge of managing a city’s urban air pollution. • In groups come up with some pollution management strategies for urban air pollution. • Evaluate the different methods in order to explain to your shareholders the advantages and disadvantages of each one. • Be ready to present them to the class.

  7. Let’s set up an experiment to see the effect of tropospheric ozone…

  8. Checking outcomes • Where does tropospheric ozone come from? • What are the effects that it can have? • How is photochemical smog formed? Why is it greater in the afternoon than the morning? Pollution management strategies…

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