Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, PR China.
Yantai Institute of Coastal Zone Research, CAS, Yantai, Shandong 264003, PR China.
Environ Pollut. 2014 Feb;185:134-40. doi: 10.1016/j.envpol.2013.10.042. Epub 2013 Nov 20.
Atmospheric PM10 were measured for 12 months at 18 sites along a 2500 km profile across northern China. Annual mean PM10 concentrations in urban, rural village, and rural field sites were 180 ± 171, 182 ± 154, and 128 ± 89 μg/m(3), respectively. The similarities in PM10 concentrations between urban and rural village sites suggest that strong localized emissions and severe contamination in rural residential areas are derived from solid fuels combustion in households. High PM10 concentrations in Wuwei and Taiyuan were caused by either sandstorms or industrial activities. Relatively low PM10 concentrations were observed in coastal areas of Dalian and Yantai. Particulate air pollution was much higher in winter and spring than in summer and fall. Multiple regression analysis indicates that 35% of the total variance can be attributed to sandstorms, precipitation and residential energy consumption. Over 40% of the measurements in both urban and rural village areas exceeded the national ambient air quality standard.
在中国北方 2500 公里的沿线 18 个站点进行了为期 12 个月的大气 PM10 测量。城市、农村村庄和农村田野站点的年平均 PM10 浓度分别为 180±171、182±154 和 128±89μg/m3。城市和农村村庄站点的 PM10 浓度相似，表明农村居民地区强烈的局部排放和严重污染来自家庭使用固体燃料的燃烧。武威和太原的 PM10 浓度较高是由于沙尘暴或工业活动造成的。大连和烟台沿海地区的 PM10 浓度相对较低。冬季和春季的颗粒物空气污染比夏季和秋季高得多。多元回归分析表明，总方差的 35%可归因于沙尘暴、降水和住宅能源消耗。城市和农村地区超过 40%的测量值超过了国家环境空气质量标准。
