A sunny day comes to Harbin, Northeast China's Heilongjiang province, on Oct 25, after days of heavy smog that shrouded the city since Oct 20.
People try to protect themselves with masks amid heavy smog in Changchun, Northeast China's Jilin province, Oct 22, 2013.
China will build a nation-wide network to monitor the impact of air pollution on health, a step to deal with a persistent smog crisis in big cities.
Beijing on Sunday was shrouded in choking smog due to adverse weather conditions in the capital city as well as in neighboring regions, meteorologic authorities said.
Car-Free Day gains momentum in China
Air pollution is more frightening than SARS because no one can escape it, said Zhong Nanshan, a leading Chinese specialist in respiratory diseases, during a TV interview aired on Wednesday.
Beijing's air pollution reached dangerous levels yet again on Sunday, marking the third consecutive day of severe smog, municipal environmental authorities said.
China will make more efforts to reduce PM 2.5 pollutants, as well as other pollutants, a government official said Tuesday.
Heavy fog enveloped a large swathe of East and Central China on Saturday, causing highway closures and flight delays in several provinces.
Dense fog shrouds Beijing
Fog, haze lead to big spike in pollution levels
The data of air quality monitoring shows that the pollutant levels of PM2.5 in Beijing reached between 340 and 446, belonging to serious pollution six.
The air quality in Beijing on Wednesday hit serious levels again, as smog blanketed the city.
Beijing vows cleaner air
Cold front to disperse smog
Cassava chips stevedores shovel amid the powder in Lianyungang city, Jiangsu province, Aug 3, 2013.