Yes the air is made of chemicals: oxygen, nitrogen, and a few more. In fact everything around us is made of chemicals! But I guess you meant harmful chemicals? Then Ireland is a good place to be for clean air: not many people, lots of space and wind!
Absolutely everything is made up of chemicals, including air, which is about 78% nitrogen, 21% oxygen, and 1 % argon, carbon dioxide and a few other things including water vapour. Air can also contain pollution, such as nitrogen oxides and hydrocarbons, which come from burning fossil fuels, so these pollutants tend to be highest in built up areas like cities.
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