Air pollution 'too high' in most of world's cities
Date published: 09th May 2014
ts survey of 1,600 cities in 91 countries revealed that nearly 90% of people in urban centres breathe air that fails to meet levels deemed safe.
The WHO says that about half of the world's urban population is exposed to pollution at least 2.5 times higher than it recommends.
Air quality was poorest in Asia, followed by South America and Africa.
"Too many urban centres today are so enveloped in dirty air that their skylines are invisible," said Dr Flavia Bustreo, the WHO's assistant director-general for family, children and women's health.
"Not surprisingly, this air is dangerous to breathe."
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