在重工业集中的辽宁省几个城市开展研究，探讨生活方式和环境污染与肺癌高发的关系。在沈阳和鞍山进行的三项研究得出结论，吸烟仍是第一位病因，人口归因危险度（ＰＡＲ）在男性为５５％，女性为３７％。室内空气污染指数与患病危险性呈显著线性相关，它的ＰＡＲ在男性为１３％，女性为１７％。调整了以上因素后，室外大气污染仍起作用。病例可归因到职业暴露的大约在６～８％。其中主要危险的职业为冶金、化学制药、玻璃陶瓷、炼焦、冶炼、铸造、耐火砖制造、轧钢等。有尘作业的总的危险性（ＯＲ）为１．５（１．２～１．９）。ＯＲ与终生累积暴露量成正相关。Ｂａｐ的累积暴露剂量也与ＯＲ呈正相关。水果和饮茶有保护作用。 Research has been conducted in several cities in Liaoning Province where heavy industries are concentrated to explore the relationship between lifestyle and environmental pollution and the high incidence of lung cancer. Three studies conducted in Shenyang and Anshan concluded that smoking is still the first cause, with a population-attributable risk (PAR) of 55% in men and 37% in women. The indoor air pollution index is significantly linearly related to the risk of disease. Its PAR is 13% in men and 17% in women. After adjusting the above factors, outdoor air pollution still works. Cases can be attributed to about 6 to 8% of occupational exposure. Among the major occupational hazards are metallurgy, chemical pharmaceuticals, glass-ceramics, coking, smelting, foundry, refractory brick manufacturing, and steel rolling. The total hazard (OR) of dusty work is 1.5 (1.2 to 1.9). OR is positively related to lifetime accumulated exposure. The cumulative exposure dose of Bap was also positively correlated with OR. Fruit and tea have a protective effect.