Its really terrible. Im extremely upset, but theres really nothing much I can do, said a Beijing resident out for a morning stroll. Like many Chinese, the man would give only his surname, Kang.
Another man, a 60-year-old retiree surnamed Chen, said his elderly relatives had moved to stay with family members outside the city to avoid the pollution.
Im in pretty good shape, but the older folks have a lot of problems with their hearts, breathing, and high blood pressure, Chen said.
Levels of PM2.5 particle pollution over the weekend reached the highest levels since the Beijing government began publicly releasing figures following a public outcry. In separate monitoring by the U.S. Embassy, level were at 886 micrograms per cubic meter in a reading that was labeled beyond index.
By Monday, levels had declined to about 350 micrograms on the Beijing government scale down from a high above 700 but still way above the level of 25 considered safe by the World Health Organization.
PM2.5 are tiny particulate matter less than 2.5 micrometers in size, or about 1/30th the average width of a human hair. They can penetrate deep into the lungs, and measuring them is considered a more accurate reflection of air quality than other methods.
The Beijing Shijitan Hospital received 20 percent more patients than usual at its respiratory health department, Dr. Huang Aiben said. Most patients were coughing and sought treatment for chronic bronchitis, asthma and other respiratory illnesses, Huang said.
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