The situation with increasing air pollution in Chinese The metropolis has long been critical. For the first three months of 2013 only 59 days Shanghai residents could enjoy more or less transparent air and temporarily forget about fear for your health. At the same time, air quality in 2013 was the lowest for the entire observation period, and within 10 days in the city kept minimal visibility.
A photo from open sources
The city administration decided that if pollution will be on the last two levels of the 6-level scale safety, and the air quality index will be up to 201-300 and will be stay within these limits for about 18 hours or more, then in the city will take emergency measures. They include control over smoking plants, passing cars and an official statement on danger through microblogging, websites or local media, in schools and kindergartens will cancel walks in the air. When the quality index exceeds 300, which corresponds to a high degree of pollution, will have to tighten measures even more. Shanghai residents will not be able to to light fireworks, drive old cars with substandard exhaust system, and the number of those located and working in the city state cars will be reduced by 30%, schools and kindergartens will be closed. The average concentration of harmful fine suspensions PM2.5 in Shanghai air in January-March 2013 amounted to 73 mcg / m3 at daily limit at 75 and annual at 35 mcg / m3.
