近年來，隨著城市規模的擴大及工商業的發展，空氣污染已成為我國最嚴重的環境問題和發展障礙，特別是 首要污染物霧霾對人體健康造成了嚴重影響，微懸浮粒子PM 2.5 受到了空前的關注。本文目的是根據微懸浮粒 子PM 2.5 的實際污染情況，估算出2009 至2013 年北京市霧霾與肺癌疾病患病率之間的相關性，分析北京地區 霧霾的主要來源，並進一步分析北京市政府環境治理工作對肺癌疾病患病率的影響。方法是收集2009 年2 月18 日至2013 年12 月31 日北京市微懸浮粒子PM2.5 質量濃度監測資料，和同期北京市衛生與計劃生育委員會的患 肺癌病的資料。研究結果控制時間趨勢後顯示:北京市霧霾污染已經為居民帶來了嚴重肺癌問題；研結果究顯示， 霧霾導致肺癌患病率相差較大，這與北京市政府霧霾治理力度密切相關。結論是北京市居民在長期暴露於大氣污 染物後，肺癌發病風險有增加的趨勢；空氣中的微懸浮粒子PM2.5、釙210 等是導致患肺癌的重要因素。

In recent years, along with the expansion of city scale and the development of industry and commerce, air pollution has become one of the most serious environmental problems and development barriers in China, especially the primary pollutant haze caused serious influence on human body health, micro-suspended particles’ PM 2.5 has received the unprecedented attention. Methods are that collecting the Beijing micro-suspended particles’ PM2.5 concentration monitoring data during the period from February 18, 2009 to December 31, 2013, and data of the Beijing Municipal Health and Family Planning Commission. After controlling the time trend, the results showed that the haze pollution in Beijing has brought serious lung cancer problems to the residents. The study also showed that the prevalence of lung cancer caused by haze was relative largely, which was closely related to the Beijing municipal government haze regulation. The conclusion is that Beijing residents has increased the risk of lung cancer, after long-term exposure to air pollutants; air micro-suspended particles’ PM2.5, Po-210 and so are the leading causes of lung cancer.