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# Smog

Last year
Schools shut across India's capital as toxic smog engulfs the city
All time
New Delhi under 'worst smog levels in recent years' from fumes, emissions and straw burning
India's capital is polluted with smog... but these Delhi offices have air as fresh as the Swiss Alps
Public health emergency declared as smog blankets Delhi
Spending a day in Delhi is the equivalent to smoking 40 cigarettes. We went to see for ourselves
UN agency says 681 people died in Ireland from air pollution in one year
It isn't the fog that China is having difficulty seeing through
China plans to take a lot of old bangers off the road this year
EPA finds no long-term health impacts from Ballymount recycling plant fire
Fears for Ireland's air after health warnings in the UK
Forget Paris, these are the world's most polluted cities
Air pollution causes cancer - WHO
Even low levels of air pollution can lead to lung cancer, major new study shows
Helicopters 'water-bomb' Singapore to fight hazardous smoky haze
"It creeps menacingly": When deadly smog choked Dublin's skies
Gallery: The world's most polluted cities
Moscow smog blamed for doubling death rate
Moscow update
Moscow: city of smog (photos)