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 Sep;192:83-90. doi: 10.1016/j.envpol.2014.04.039. Epub 2014 Jun 3.
Air pollution in rural China has often been ignored, especially for the less developed west China. Atmospheric polycyclic aromatic hydrocarbons (PAHs) were measured monthly at 11 rural sites (5 rural villages and 6 rural fields) together with 7 urban stations in northern China between April 2010 and March 2011. PAH concentrations at rural village sites were similar to those in urban areas and significantly higher than those in rural fields, indicating severe contamination in rural villages. PAH concentrations in the west were similar to those in the more developed North China Plain, and higher than those along the coast. Such a geographical distribution is mainly caused by the differences in residential energy consumption and meteorological conditions, which can explain approximately 48% of the total variation in PAH concentrations. With heavy dependence on biofuel combustion for heating, seasonality in rural areas is more profound than that in urban areas.
中国农村的空气污染问题一直以来都受到忽视，尤其是在中国西部欠发达地区。2010 年 4 月至 2011 年 3 月期间，在中国北方的 11 个农村地区（5 个农村村庄和 6 个农村田地）以及 7 个城市站每月测量一次大气多环芳烃（PAHs）。农村村庄站点的 PAH 浓度与城市地区的浓度相似，明显高于农村田地的浓度，表明农村村庄受到严重污染。西部地区的 PAH 浓度与较为发达的华北平原相当，高于沿海地区。这种地理分布主要是由于居住能源消耗和气象条件的差异造成的，这可以解释 PAH 浓度总变化的约 48%。由于农村地区严重依赖生物燃料燃烧取暖，因此季节性比城市地区更为明显。
