The air we breathe
A Guardian Cities series investigating air pollution around the world
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The Guardian view on pollution: a new Clean Air Act is overdueEditorial: No one can escape filth in the atmosphere. Even conservatives must see that it blights all our lives and requires a collective political remedy
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'You can taste it in the air': your stories of life in polluted citiesReaders shared their experiences of living in cities affected by air pollution – from the curse of the ‘Delhi chest’ in India’s capital to celebrating blue sky in Shanghai
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Where the wind blows: how China's dirty air becomes Hong Kong's problemLast month there were 300,000 doctor’s visits in Hong Kong linked to smog – much of which wafts over from mainland China. But in a busy town obsessed with money, will it take a direct economic hit to wake people to the danger?
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Millions of premature births could be linked to air pollution, study findsPremature births across 183 countries may be associated with fine particulate matter, a common air pollutant, with Africa and Asia especially affected
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European commission issues 'final warning' to UK over air pollution breachesUK is one of five countries persistently contravening legal nitrogen dioxide levels with pollution from factories and vehicles
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10 ways to beat air pollution: how effective are they?From particle-zapping bus stops to compact ‘smart’ air filters, we examine the methods that tackle the symptoms of air pollution
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'Filthy glamour': could polluted Marylebone Road help fix London's air?Marylebone Road has the odd distinction of being the world’s most studied road in terms of air pollution – yet remains a chief culprit in London’s ‘shameful’ air quality. Now it’s home to a series of new experiments
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Delhi's deadly dust: how construction sites are choking the cityThe Indian capital’s inherently dusty air is made worse by countless unregulated construction sites – and the production of bricks and concrete to feed them
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Breathless in Bakersfield: is the worst air pollution in the US about to get worse?In California’s Central Valley emissions from oil refineries and agriculture make Bakersfield America’s most air-polluted city. Activists fear the Trump administration could undo small but steady improvements
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One day in the life of a suffocating planet – as it happenedAs Guardian Cities kicks off a week investigating air pollution, our correspondents report from the front lines of this global urban crisis
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'We had to sue': the five lawyers taking on China's authorities over smogIn an unprecedented legal case, a group of Chinese lawyers have charged the governments of Beijing, Tianjin and Hebei with failing to protect their citizens from air pollution, which is linked to a third of all deaths in the country
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Pant by numbers: the cities with the most dangerous air – listedWe’ve broken down the data on dangerous PM2.5 particles, and listed them region by region – to reveal the cities with the worst air in Europe, the US, Africa, Asia and more
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How bad is Delhi's air? We strapped a monitor to a rickshaw to find outSuresh Kumar Sharma is an auto-rickshaw driver in Delhi, a city with some of the world’s dirtiest air – and where many locals don’t know how unhealthy the pollution really is
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What's air pollution like where you are? Share your experiencesWe’d like to find out about air pollution in cities around the world. How does it affect your daily life? Share your views, experiences and photographs
Hope for Hanoi? New bus system could cut pollution … if enough people use it