A Chinese woman wearing a mask walks in a shopping street during a hazy day in Beijing city, China, on Tuesday. Beijing issued a red alert for smog, urging schools to close and residents to stay indoors for the second time in 10 days
An elevation in the city of Sarajevo, Bosnia and Herzegovina, covered in a thick layer of fog, on Monday. Due to high levels of NO2 (nitrogen dioxide) in the air over the city and a certain meteorological condition, residents of Sarajevo were recommended to reduce their movement in the streets and to reduce car traffic
Ng Han Guan/AP
A woman wears a mask as she visits the Forbidden City during a sunny day in Beijing Friday. Residents in the Chinese capital are preparing for its second smog red alert as a wave of smog is forecasted to settle over the city
Chinese Paramilitary guards stand on the stairs after Sheikh Mohammed bin Zayed al-Nahyan, Crown Prince of Abu Dhabi and UAE’s deputy commander-in-chief of the armed forces leaves the Great Hall of the People in Beijing on Monday
A paramilitary policeman wearing a mask stands guard in front of the giant portrait of Chinese late chairman Mao Zedong, amid heavy smog after the city issued its first ever “red alert” for air pollution in Beijing, China
Rolex de la Pena/EPA
A woman wearing a mask to protect against smog poses for photos at the Temple of Heaven Park in Beijing, China
Residents dance during their daily exercise amid the heavy smog in Beijing, China
A combination photo shows a morning commuter walking in front of the China Central Television (CCTV) building on a smoggy day on December 1, 2015 (top), and on a sunny day on December 2, 2015 (bottom), after a fresh cold front cleared the smog that was blanketing Beijing, China.
Kevin Frayer/Getty Images
Chinese man wears a protective face mask as he passes by the CCTV building on a day of heavy pollution on Monday in Beijing, China. China’s capital and many cities in the northern part of the country recorded the worst smog of the year with air quality devices in some areas unable to read such high levels of pollutants
Motorists ride on a road as thick haze from forest fires shroud the city in Palangkaraya, Central Borneo, Indonesia, Tuesday. The haze has blanketed parts of western Indonesia for about two months and affected neighboring countries like Singapore, Malaysia and Thailand
Lorries cross a bridge shrouded in haze in Klang, Malaysia, on Wednesday. The thick so-called “haze,” caused by slash-and-burn clearances on the islands of Sumatra and Borneo, has pushed air quality to unhealthy levels in Malaysia and neighboring Singapore.
Spectators wearing masks watch men’s singles match between David Goffin of Belgium and Andreas Seppi of Italy, on a polluted day at the China Open tennis tournament in Beijing, China on Monday
© via Harris/Reuters
A BASE jumper leaps from the 300-metre high Kuala Lumpur Tower during the International Tower Jump in which more than 100 people take part, on a hazy day in Kuala Lumpur, Malaysia. Slash-and-burn agriculture in neighbouring Indonesia has blanketed Malaysia and Singapore in a choking haze for weeks.
Antara Foto/Wahdi Setiawan/Reuters
Students walk along a street as they are released from school to return home earlier due to the haze in Jambi, Indonesia’s Jambi province, Tuesday. Indonesia has sent nearly 21,000 personnel to fight forest fires raging in its northern islands
People perform morning exercises on a polluted day in Jiaozuo, Henan province, China on Monday.
An octopus-shaped kite flies through the smog during a kite festival in Chongqing, southwest China
Kenzo Tribouillard/AFP/Getty Images
Eiffel Tower in central Paris through a haze of pollution. More than 30 departments in France have been hit by maximum level pollution alerts since Thursday, prompting the ecology minister to say air quality was “an emergency and a priority for the government”.
China’s National Meteorological Centre issued a “yellow” smog alert for much of the country’s north, the fifth consecutive day of heavy pollution that has cut visibility and seen pollution reach hazardous levels, affecting areas such as Tiananmen Square (above) in Beijing.
Cyclists cover their faces on a hazy day in Zhengzhou, Henan province, China. Two of the country’s most influential news outlets were criticised after trying to put a positive spin on China’s air pollution problem. The Global Times newspaper said smog could be useful in military situations, as it could hinder the use of guided missiles, while state broadcaster CCTV listed five “unforeseen rewards” of smog, including helping Chinese people’s sense of humour.
A traffic policeman signals to drivers during a smoggy day in Harbin, Heilongjiang Province. The second day of heavy smog forced the closure of schools and highways on Monday, according to Xinhua News Agency.