英闻天下——42 China to Release Real-Time Air Quality Data(在线收听

   The government will issue real-time air quality monitoring data in 74 cities starting January 1st.

 
  The Ministry of Environmental Protection says the data will include PM2.5, a gauge which monitors fine particles with a diameter of 2.5 microns or less.
 
  Information on major pollutants in the air, including sulfur dioxide, nitrogen dioxide, ozone, carbon monoxide and fine particles, will also be released.
  原文地址:http://www.tingroom.com/lesson/ywtx/202969.html