Aoki K, Shimizu H
Natl Cancer Inst Monogr. 1977 Dec;47:17-22.
The relationship between incidence of lung cancer and the volume of traffic as indicated by auto exhaust concentration was examined; the results, though suggestive, did not yield consistent evidence of the association between them. Traffic jams in Nagoya began 15 years ago, a period that may not be long enough to provide definitive data on the incidence of lung cancer. The high standardized mortality ratio (SMR) of lung cancer was observed in cities with a population of less than 1 million and guns (rural areas) along the coast, although those in the metropolitan areas with populations of more than 1 million were average. The SMR did not correlate with various socioeconomic conditions and industrial air pollution. Meteorologic or geologic conditions and ocean currents were not associated with SMR of lung cancer by city and gun. The population of a gun or of some cities was not large enough to be statistically significant, and the mortality rate of lung cancer was not always stable.
研究了肺癌发病率与汽车尾气浓度所表明的交通流量之间的关系；结果虽具有一定提示性，但并未得出两者之间关联的一致性证据。名古屋的交通拥堵始于15年前，这段时间可能不够长，无法提供关于肺癌发病率的确切数据。在人口不足100万的城市以及沿海地区的乡村，观察到肺癌的标准化死亡率（SMR）较高，而人口超过100万的大都市地区的SMR则处于平均水平。SMR与各种社会经济状况及工业空气污染均无关联。气象或地质条件以及洋流与各城市和乡村的肺癌SMR均无关联。某些乡村或城市的人口规模不够大，不具有统计学意义，且肺癌死亡率并非始终稳定。
