Abstract:The pollutant concentration layer and population spatial distribution layer in January 2001 were overlaid, based on monthly average PM10 concentrations from measurements and CMAQ simulations. Then population exposure levels were calculated by the population-weighted PM10 concentrations. Assessment results from these two different sets of data were also comparatively analyzed. The simulated PM10 concentration gradient is larger than the observed one. The simulation provides more detailed spatial distribution of PM10 concentrations as well as larger intervals between maxima and minima. Taking the factor of population weights into account, there are more people living in more polluted areas based on simulated PM10 concentrations.
孙兆彬, 安兴琴, 陶燕, 侯青. 基于GIS和大气数值模拟技术评估兰州市PM10的人群暴露水平[J]. 中国环境科学, 2012, 32(10): 1753-1757.
SUN Zhao-Bin, AN Xing-Qin, TAO Yan, HOU Qing. Assessment on population exposure levels of PM10 in Lanzhow based on GIS and atmospheric numerical simulation technology. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(10): 1753-1757.