"Water and air, the two essential substances on which all life depends, have become global garbage cans." JACQUES COUSTEAU, environmentalist, undersea explorer, photographer and filmmaker.

Where does pollution come from? What are the biggest air polluters? Why do we need the ozone layer? What’s the link between air quality and our health? Are you sure that air quality in your home is better that outdoors? What do you know about indoor pollution? How can your consumption choices impact air quality (positively or negatively)?

• The air quality test [http://www.epa.vic.gov.au/Air/AQ4Kids/quiz.asp] is part of a project of the Environment Protection Authority (EPA) of Victoria, Australia, specifically designed for students, and is a window into EPA Victoria's database of air quality measurements. The quiz provides you, in 8 multiple choice questions, an opportunity to test how much you know about this essential-to-life element: what is air made of? Which people are the most affected by air pollution? (B)



• The Envirofun web site of the Illinois Environmental Protection Agency ‘asked’ Captain Earthworm, Captain Redbird and Captain Bluegill to show you how you can protect the earth's air and environment! Take the air quiz [http://www.epa.state.il.us/kids/fun-stuff/quiz/air-quiz.html] to test your knowledge on ozone, origin of smog, transport impact, and so on. (B)

• Toxic materials from cleaning products fill the air inside our homes with hazardous fumes that we may inhale for days after we've used them and leave unhealthy residues on household surfaces. It's no wonder, then, that EPA studies of human exposure to air pollutants indicate that indoor air levels of many pollutants may be two to five times (and occasionally more than 100 times) higher than outdoor levels, regardless of whether homes are located in rural or highly industrial areas. Do you know how to keep your family safe and healthy? The American Lung Association's website offers you this quick quiz to test your Indoor Air Quality knowledge. [http://www.healthhouse.org/iaq/IAQTest.asp] (B)



• Actually, there are several ways that we could all contribute to pollution prevention. This is what is suggested by the Pollution menace at home quiz [http://www.pprc.org/pubs/quizes/quiz99home.html], conceived by the Pacific Northwest Pollution Prevention Resource Center (PPRC), a non-profit US organisation that works collaboratively with business, government, non-government organisations and other sectors to promote environmental protection through pollution prevention. This is a very informative game full of useful tips on pollution prevention and reduction at home. Lets go!