依海珠区1980～1984年间肺癌死亡专率和街道死亡专率,选择了肺癌死亡率较高,人群居住年限较长而稳定,又是主要交通干线通过地的洪德街和跃龙街的肺癌病人及健康居民,进行了和1:2配对调查所设计的项目调查询问,作对比研究,探讨两街肺癌有关的危险因素及其差别,现将结果摘要报道如下: According to the specific mortality rates of lung cancer and street deaths from 1980 to 1984 in Haizhu District, the mortality rate of lung cancer was high, the population lived longer and more stable, and lung cancer of Hunde Street and Yuelong Street, where the main traffic routes passed, Patients and healthy residents, carried out and 1: 2 matching survey designed by the project inquiry, for comparative study to explore the two streets of lung cancer risk factors and their differences, the results are summarized as follows: