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Air pollution and smoking

Air pollution and smoking. 7 . 6. Effects of polluted air on our health. Burning fossil fuels gives out air pollutants ( 空氣污染物 ). Effects of polluted air on our health. sulphur dioxide ( 二氧化硫 ). nitrogen oxides ( 氮氧化物 ). air pollutants. suspended particulates ( 懸浮粒子 ).

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Air pollution and smoking

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  1. Air pollution and smoking 7.6

  2. Effects of polluted air on our health Burning fossil fuels gives out air pollutants (空氣污染物)

  3. Effects of polluted air on our health sulphur dioxide(二氧化硫) nitrogen oxides(氮氧化物) air pollutants suspended particulates(懸浮粒子) carbon monoxide(一氧化碳) ozone(臭氧)

  4. Effect: irritate our eyes and throat Effects of polluted air on our health sulphur dioxide nitrogen oxides

  5. 5 Effects of polluted air on our health carbon particles Effect: irritate our lungs sulphur dioxide nitrogen oxides

  6. 6 Effects of polluted air on our health carbon particles Effect: irritate our lungs sulphur dioxide nitrogen oxides respiratory diseases like bronchitis and asthma

  7. 7 Effects of polluted air on our health lead particles Effect: adversely affect brain functions

  8. 8 Effects of polluted air on our health carbon monoxide Effect: lowers amount of oxygen in blood dizziness and headaches

  9. Effects of polluted air on our health Breathing in air with pollutants can cause various health problems.

  10. Air pollution index (API) What does this tells us?

  11. Air pollution index (API) • reported by the Environmental Protection Department (EPD)

  12. 12 Air pollution index (API) • ranges from 0 to 500 • divided into 5 levels

  13. Air pollution index (API) air quality monitoring station (空氣質素監測站) instruments for measuring the levels of certain air pollutants

  14. 14 Air pollution index (API) None No action is Needed 0 | 25 Low

  15. 15 Air pollution index (API) None No immediate action is needed 26 | 50 Medium

  16. 16 Air pollution index (API) Immediate health effects in very few people No immediate action is needed 51 | 100 High

  17. 17 Air pollution index (API) Health conditions of people with heart or respiratory diseases may worsen mildly People with heart or respiratory diseases should reduce physical and outdoor activities 101| 200 Very high

  18. Air pollution index (API) Wheezing and coughing among general public; All people should reduce physical and outdoor activities 201| 500 health conditions of people with heart or respiratory diseases may worsen significantly Severe

  19. Air pollution index (API) The API describes the air quality. The higher the API, the poorer the air quality.

  20. 7.5 Air quality in Hong Kong

  21. 7.5 1 Which station (A, B or C) is most probably located in the rural area? Explain your answer. Station B, because the API was never recorded as very high or severe over the three months. It also has the largest number of hours recorded with low air pollution level.

  22. 7.5 2 Suppose station C is located in Causeway Bay. Suggest reasons for the poor air quality in Causeway Bay. The heavy traffic in Causeway Bay releases a large amount of exhaust gas. The air pollutants in the exhaust gas are trapped in the area by tall buildings.

  23. 23 Effects of smoking on our health Say NO to smoking!

  24. Effects of smoking on our health > 4000 chemicals in cigarette smoke > 50 harmful to health

  25. 7.20 Experiment video Cigarette smoking model 1 to air pump cigarette cotton wool U-shaped tube

  26. 26 7.20 2 turn on the air pump light the cigarette

  27. 7.20 What happens to the colour of the cotton wool? 2 It turns yellow/brown.

  28. 28 Effect of smoking on our health the yellow substance left istar (焦油)

  29. 29 Effect of smoking on our health tar black tar deposits

  30. 30 Effect of smoking on our health from a healthy person from a smoker

  31. Effect of smoking on our health Tar • Causes throat and lung cancer • Causes coughs and other respiratory diseases, e.g. bronchitis • Stains the teeth and finger nails

  32. 32 Effect of smoking on our health Nicotine(尼古丁) • Lowers the oxygen content in blood • Increases heart rate and blood pressure • Leads to heart diseases

  33. 33 Effect of smoking on our health Carbon monoxide • Lowers the oxygen content in blood

  34. 34 Effect of smoking on our health Hydrogen cyanide (氰化氫) • Irritates the eyes, nose and skin • Causes weakness, headaches and vomiting

  35. Passive smoking

  36. Passive smoking Immediate effects eye irritation dizziness coughs sore throat headaches

  37. 37 Passive smoking Long-term effects increased risk of smoking-related diseases (e.g. respiratory diseases, lung cancer and heart diseases)

  38. Non-smokers’ lung and smokers’ lung

  39. Effect of smoking on our health Smoking and passive smoking largely increase the risk of developing respiratory diseases, lung cancer and heart diseases.

  40. 7 1 The major cause of air pollution is the burning of large amounts of __________. fossil fuels

  41. 41 7 2Air pollutants can cause respiratory diseases such as __________ and __________. bronchitis asthma

  42. 7 3The range of the Air Pollution Index is divided into ______ air pollution levels. five

  43. 43 7 4______ is a yellow substance in cigarette smoke. It can cause cancer. Tar

  44. 7 5 Cigarette smoking is addictive because cigarette smoke contains ________. nicotine

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