Ulaanbaatar, the capital of Mongolia, holds the title of the world’s coldest capital city, with winter temperatures ...

However, it’s also one of the most polluted cities in the world, with smog and burning rubbish making the air quality one of the worst globally. Air pollution is measured by the level of PM2.5 ...

In the drive to build smarter cities around the world, what is the most important thing we should do to tackle air pollution? Chokingly thick blankets of smog are often a byproduct of economic ...

When the smog finally lifted ... including those faced by several cities in China, which is home to some of the world’s most polluted cities. “The difference in China is that the haze starts ...

Nearly 4 in 10 Americans – or more than 131 million people – lived in areas with unhealthy levels of air pollution in recent years, a new report finds. And the country’s air pollution ...

BEIJING--Authorities issued their highest warnings for fog and haze on Tuesday as smog enveloped major cities in northern China, warning the public that visibility could drop to less than 50 ...

Globally, the alarming increase in air pollution is expected to ... Overall, 64% of the 3,000 cities covered in the report surpassed the World Health Organisation (WHO) guidelines on PM2.5 ...

HANOI (Bloomberg): Vietnam’s capital has been blanketed in toxic air for weeks with one index briefly making Hanoi the world’s most ... action to tackle the smog. Hanoi hit the purple "very ...

Nine out of the world’s 10 cities with the worst air pollution are in South Asia. Concentrations of fine particulate matter (PM 2.5) in some of the region’s most densely populated and poor areas are ...