Schools in the Chinese capital kept students indoors and parents brought their kids to hospitals with breathing ailments Tuesday as Beijing grappled with extremely severe air pollution for the fifth straight day.
Haze from Indonesian forest fires has spread to the southern Philippines, disrupting air traffic and prompting warnings for residents to wear face masks, authorities said Friday.
Researchers at the Hong Kong Polytechnic University have developed a ground-breaking filter technology that guards against the finest pollutants in the air.
China's commercial hub Shanghai was blanketed by dense smog Friday, delaying flights and spurring sales of face masks.
Wearing face masks and wielding sanders, two workers smooth the surface of a massive fan for a wind turbine at the Gamesa factory in Aoiz, a town in Navarre, northern Spain.
Southeast Asian nations urged Indonesia Sunday quickly to ratify a treaty aimed at preventing fires in its giant rainforests that regularly inflict choking smog on its neighbours.
Indonesia said Saturday that fires across giant rainforests which caused Southeast Asia's worst air pollution crisis in years had been greatly reduced and were coming under control.
China is considering a ban on barbecues to help reduce air pollution in built-up areas after heavy smog recently choked large swathes of the country, state media reported Wednesday.
China has cleaned up its air before but experts say that if it wants to avoid the kind of smog that choked the country this week, it must overhaul an economy fuelled by heavily polluting coal and car use.
Shares in a Chinese facemask manufacturer soared on Tuesday as investors looked for opportunities to profit from the severe air pollution that has blanketed large swathes of China.