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When you think of pollution in cities, what is most likely to spring to mind? Probably

cars and buses spewing out exhaust fumes, factory chimneys spitting out poisonous

clouds of smoke, or streets covered by smog. (1) However, you may come in for a

surprise when you learn that they are just part of a bigger picture.

According to a recent study, air pollution is also caused by everyday consumer products

such as cleaning agents, perfume, or printer ink. Scientists have proven that air

contamination also stems from chemical reactions which occur in the atmosphere. (2)

These elements from products such as fragrances, air fresheners, scented candles, or

pots of paint get into the air quickly because they evaporate fast, adding to the overall

air pollution. What's a growing concern is that chemical reactions involving VOCs

happen both outdoors and indoors. (3)

What can be done about it, you may wonder? Can we cease to use all of these products?

Can they be manufactured in a different way to ensure that they don't interact like that

once in the atmosphere? (4) 2 If you wish to inhale better quality air, opt for fragrance-free

cleaning agents, keep use of any scented products to a minimum, and grow plants like

weeping figs or spider plants which apparently help get rid of the VOCS from the air inside

our homes. But what about a scent-free perfume? It's a contradiction in terms!

A It means that we are exposed to polluted air practically all the time.
B These are the most likely and typical urban pollutants, you would say, wouldn't you?
C The official advice is sensible enough and fairly easy to follow.
D Therefore, cutting down on such products may seem undo-able for most of us.
E These are triggered by hundreds of molecules floating in the air, known as VOCS (volatile organic compounds).