Fine particulate matter (PM2.5) in China at a city level

This study presents one of the first long term datasets including a statistical summary of PM2.5 concentrations obtained from one-year monitoring in 190 cities in China. We found only 25 out of 190 cities could meet the National Ambient Air Quality Standards of China, and the population-weighted mean of PM2.5 in Chinese cities are 61 μg/m(3), ~3 times as high as global population-weighted mean, highlighting a high health risk. PM2.5 concentrations are generally higher in north than in south regions due to relative large PM emissions and unfavorable meteorological conditions for pollution dispersion. A remarkable seasonal variability of PM2.5 is observed with the highest during the winter and the lowest during…

• NA
  National Aeronautics and Space Administration
• GO
  Government of Jiangsu Province
• NS
  Natural Science Foundation of Jiangsu Province
• NU
  Nanjing University of Information Science and Technology

  Awards: 2015r023, 2015r019
• GS
  Goddard Space Flight Center
• SF
  Startup Foundation for Introducing Talent of Nanjing University of Information Science and Technology

  Awards: 2015r019, 2015r023