Singaporeans rate their air quality better than citizens polled in 20 of the world's most populous cities. Gallup reports from the field on how the tight restrictions on driving play a role.
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Gallup
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Joined Jul 12 2007
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Singapore's Rules Cut Driving, Boost Air Quality
Singaporeans rate their air quality better than citizens polled in 20 of the world's most populous cities. Gallup reports from the field on how the tight restrictions on driving play a role.
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