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Data are collected from local monitoring stations and U.S. Embassy/Consulate. Readers shown on this page are widget from a website (http://www.aqicn.info/city/beijing/). The Index is now updated to follow the United States Environmental Protection Agency (EPA) criteria called AirNow standards.

Real-time Monitoring in China

  • Beijing is the political capital of China. The number of permanent residents continuously increases at an incredible rate to 20 million in January 2013. Beijing shares the same latitude and therefore almost same type of climate with Philadelphia, U.S.
  • Shanghai, well known as the economic heart of the country, locates on the eastern coastal area within the subtropical region. There are 23.8 million inhabitants – more than that of Taiwan - living on the 2447 square miles land.
  • Wuhan, the capital of Hubei Province, is the very fort that historically linked inland with coastal areas. It used to be the home for several state-owned heavy industries.
  • Chengdu, the most developed city in the entire southwest China, earns credit in its all-year-round mild weather and  the reputation as the home of panda. Due to its geographic location at a basin, seldom does it encounter wind – the very main source of power to dissipate fog and smog.
  • Hong Kong, best known by its economic dynamics, is a city built entirely on tertiary industries. Financial prosperity and cultural diversity have attracted capital worldwide to this island, resulting in the population density reaching 54,000 people per square miles. Environmental challenges emerged with highly urbanized process.
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