目的：进一步研究炼焦工和煤气工职业性肺癌与其它癌症之间的关联。方法：在焦化厂和煤气厂工人中，进行全癌流调，包括职业性肺癌、肝癌和消化道癌，并探讨几种癌症在流行病学、病因学和靶器官之间的相关性。结果：结果表明，不论在流行病学上或病因学上，职业性肺癌、肝癌和消化道癌都与多环芳烃有密切的关系。结论：根据上述结果，提出了“多环芳烃诱癌多重靶器官”的假设，并且考虑到这一论点将对卫生标准的修订提供出某些科学依据。 Objective: To further study the association between coking workers and gas workers’ occupational lung cancer and other cancers. METHODS: Among coworkers and gas plant workers, all cancers were treated, including occupational lung cancer, liver cancer, and digestive tract cancer, and the correlations between several cancers in epidemiology, etiology, and target organs were explored. Results: The results show that occupational lung cancer, liver cancer, and gastrointestinal cancer are closely related to PAHs regardless of epidemiology or etiology. Conclusion: Based on the above results, the hypothesis of “PAH-induced multiple target organs” was proposed, and taking into account this argument will provide some scientific basis for the revision of the health standards.