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Studying Air Quality

Explore the possibility of collecting primary evidence of air quality in urban areas and examine the methods used to justify claims about pollution levels. This topic aligns with OCR Science A - C1 Air Quality objectives and Science How Works objectives.

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Studying Air Quality

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  1. Studying Air Quality Is it possible to collect primary evidence in urban areas?

  2. Examination Board Learning Objectives • OCR Science A - C1 Air Quality C1.1 Which chemicals make up air, and which ones are pollutants? How do I make sense of data about air pollution?

  3. How Science Works Objectives Assessment Objective 3 (AO3): Practical, enquiry and data-handling skills Candidates should be able to: • carry out practical tasks safely and skillfully; • evaluate the methods they use when collecting first-hand and secondary data; • analyse and interpret qualitative and quantitative data from different sources; • consider the validity and reliability of data in presenting and justifying conclusions.

  4. Describe this picture…

  5. Why wear a mask?

  6. Where does pollution go?

  7. Where is the best place to have refreshment facilities? These are the opinions of two people What do they need to do to justify their claims? You need to help them…

  8. Where is it best to have refreshment facilities? I am an extremely busy commuter whom pays my council tax. I can not believe the council are considering putting refreshment facilities so far away from the road! What? Air pollution from sources such as cars, will be carried by the wind into the marshes! The pollution levels will ultimately be the same! Unseen risks!! What risks can be so unseen that I will be unable to use the facilities when I am in a hurry…. Don’t be so silly dear! Air pollution will be highly concentrated near to the source; and thus situating the café should be away from this … Pollution of course – do you not read the papers? Having cafes etc. near to the road will bring you into contact with more SOx, NOx and sooty particles… that’s without mentioning all that noise pollution. Well of course the council are considering such a placement… there are unseen risks near to the road

  9. Where is it best to live in your area? Unseen risks!! What risks can be so unseen that they leave my house £50,000 cheaper than yours? I live near the main road at the bottom of the Heath near excellent transport links. My house is the same size as the homes at the top of the hill but has been valued as less by my estate agent! What? Air pollution from sources such as cars, will be carried by the wind up the hill! The pollution levels will ultimately be the same! Don’t be so silly dear! Air pollution will be highly concentrated near to the source; and thus your home and not mine… Pollution of course – do you not read the papers? Living near to the road will bring you into contact with more SOx, NOx and sooty particles… that’s without mentioning all that noise pollution. Well obviously I live at the top of the hill. I have a bicycle as transport links are limited. But my home is worth a lot more than yours due to the unseen risks

  10. Where is the best place to live in this area? These are the opinions of two people What do they need to do to justify their claims? You need to help them….

  11. Possible methods • Sticky tape 5cm in length • 2m height up tree • Apply pressure • Remove and place on to sheet Other methods?

  12. History & Safety

  13. Reviewing methods….. Let’s go!

  14. Particles on sticky tape

  15. Particles on selotape

  16. Post fieldwork • Sampling the sample… • Calculating the average percentage cover. • Plotting the data. • Analysing the data. • Can we bring evidence to the argument? • New scenarios – what if…?

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