does air pollution cause asthma

this is for chemistry case study i have to complete by tomorrow i'm stuck i don't know what to do for the science, for and against sections of my case study if i don't get help i will fail my chemisty GCSE!

Well, I get asthma and I can tell you from personal experience that it does get worse in cities with air pollution. This is backed up by this article
05 May 2011
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