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Asthma Corsework Science

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Does Asthma Affect Traffic Pollution? What is Asthma? Asthma is a common disease which affects your airways, making them swollen, and can make breathing very difficult. It affects five million people in the UK. What happens when an Asthma attack triggers is that the airway gets narrower for a person, therefore, making them breathe heavier. The number of asthma sufferers has gone up within the last 50 years. Sometimes by breathing in polluted air, such as from cars can set of an asthma attack. (1)Figure 1: This diagram above shows 2 airways. One airway (on the right) is affected by asthma. The one on the right, is a normal airway. It clearly shows what happens when an asthma attack is triggered. Causes of Asthma (2)Asthma causes lots of problems like coughing, making a person breathe faster, and short inhaling of oxygen. It can also damage the airways. Pollution in bad air can cause asthma attacks even on healthy people. Asthma Inhaler Inhalers are commonly used to cure asthma. ...read more.


Ever since Catylic converters have been used in cars, the asthma rate has slowly gone down. Air contains roughly 78% nitrogen, 21% oxygen, 1% Argon and 0.01% carbon dioxide which is why both Carbon Dioxide and Argon are not visible on the graph above. Figure 2 this graph above shows the 4 main pollutants (in blue), it shows the rate is going down. So this graph is saying that there is no link in between traffic and asthma. While the asthma incidence line (pink) is going up and then dropping towards 1996. Gasses Nitrogen doesn't burn in air unless the temperature is hot enough around 1000�C. Then nitrogen combines with oxygen to form nitrogen monoxide. When nitrogen monoxide mixes with cool air, some of it reacts with more oxygen to form nitrogen dioxide. Nitrogen dioxide affects asthma. Carbon monoxide, nitrogen monoxide, and un-burnt fuels contribute to the greenhouse effect. They are poisonous, they irate the lungs, they can bring asthma attack and they can cause smoking. ...read more.


He also said that 'The problem with animal models of asthma is that you don't have one that is really representative of human asthma.' So this makes this kind of research difficult. There is no doubt that traffic pollution has a lot to do with triggering asthma attacks but does not cause an asthma attack. As air quality has improved, by adding catalytic converters to cars, so the number of asthma cases has risen. There are lots of other factors that are proven to make asthma worse, such as; eating unhealthily (junk food) which is responsible for increase rates of childhood asthma. They found that children who had the lowest intakes of vegetables and milk, vitamin E, and certain minerals were at significantly greater risk of asthma-type symptoms. This agrees with Dr Martyn Partridge's quotation beneath. 'A diet rich in fruit and vegetables can help to prevent the world's children from developing asthma and wheezy diseases' Said Dr Martyn Partridge, British Thoracic Society. (1) http://wildchildonline.com (picture) (2) http://hcd2.bupa.co.uk/fact_sheets/Mosby_factsheets/asthma.html (3) http://www.abd.org.uk/images/graphs/asthma_trends.gif (Pollutant Graph) (4) http://www.airquality.co.uk/archive/uk_forecasting/apfuk_home.php?zone_id=17 (Air Quality Reading) (5) http://news.bbc.co.uk/1/hi/health/1099418.stm (Quote From Text) ?? ?? ?? ?? 1 Rakeem Nabi ...read more.

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