1/8A man wearing a mask makes his way amid thick haze in Beijing, Feb. 25, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
2/8A man wearing a mask drives a car amid thick haze in the morning in Beijing, Feb. 26, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
3/8Commuters wearing masks make their way amid thick haze in the morning in Beijing, Feb. 26, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
4/8Cars drive on the Three Ring Road amid the heavy haze in Beijing, Feb. 26, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
5/8Japanese tourists wearing masks make their way to the Olympic Park amid thick haze in Beijing, Feb. 25, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
6/8People visit the Olympic Park amid thick haze in Beijing, Feb. 25, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
7/8Buildings are seen shrouded in heavy haze at Qingdao development zone, Shandong province, Feb. 25, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
8/8Children with respiratory illness receive treatment at a hospital in Beijing, Feb. 21, 2014.
China's capital Beijing, under fire to take effective measures against air pollution, raised its four-tiered alert system to “orange” for the first time on February 21, 2014. Heavy smog was expected to enshroud the city for an indefinite period.
