OBJECTIVES: This study investigated the associations between specific cancers and occupational exposure to polycyclic aromatic hydrocarbons (PAH), asbestos, electromagnetic fields, and heat in a cohort of workers from a Norwegian aluminum smelter. METHODS: Cancer incidence between 1953 and 1993 was observed for 2647 male short-term workers and 2 cohorts of men with at least 4 years' employment (2888 production workers and 373 maintenance workers). Standardized incidence ratios (SIR) were calculated from the national male cancer incidence, and associations with cumulative exposure were investigated by stratified analysis. Cumulative exposure in 15-year time windows was used as an alternative dose indicator. RESULTS: Investigation of the a priori hypotheses in the production cohort revealed a positive association between bladder cancer and PAH exposure 30 years or more before observation. The results also suggested an association between PAH and pancreatic cancer, although not statistically significant. No association was seen between exposure to PAH and cancers of the lungs or between magnetic field exposure and lymphatic and hematopoietic cancer. In the maintenance cohort there was a positive association between employment as an electrician and lymphatic and hematopoietic cancer and a statistically nonsignificant association between PAH and lung cancer. The short-term workers showed a statistically significant excess of lung cancer. CONCLUSIONS: The results support previous findings of an association between exposure to PAH and bladder cancer.
OBJECTIVES: This study investigated the associations between specific cancers and occupational exposure to polycyclic aromatic hydrocarbons (PAH), asbestos, electromagnetic fields, and heat in a cohort of workers from a Norwegian aluminum smelter. METHODS:Cancer incidence between 1953 and 1993 was observed for 2647 male short-term workers and 2 cohorts of men with at least 4 years' employment (2888 production workers and 373 maintenance workers). Standardized incidence ratios (SIR) were calculated from the national male cancer incidence, and associations with cumulative exposure were investigated by stratified analysis. Cumulative exposure in 15-year time windows was used as an alternative dose indicator. RESULTS: Investigation of the a priori hypotheses in the production cohort revealed a positive association between bladder cancer and PAH exposure 30 years or more before observation. The results also suggested an association between PAH and pancreatic cancer, although not statistically significant. No association was seen between exposure to PAH and cancers of the lungs or between magnetic field exposure and lymphatic and hematopoietic cancer. In the maintenance cohort there was a positive association between employment as an electrician and lymphatic and hematopoietic cancer and a statistically nonsignificant association between PAH and lung cancer. The short-term workers showed a statistically significant excess of lung cancer. CONCLUSIONS: The results support previous findings of an association between exposure to PAH and bladder cancer.
Authors: Daniel Krewski; Robert A Yokel; Evert Nieboer; David Borchelt; Joshua Cohen; Jean Harry; Sam Kacew; Joan Lindsay; Amal M Mahfouz; Virginie Rondeau Journal: J Toxicol Environ Health B Crit Rev Date: 2007 Impact factor: 6.393
Authors: Igor Burstyn; Hans Kromhout; Christoffer Johansen; Sverre Langard; Timo Kauppinen; Judith Shaham; Gilles Ferro; Paolo Boffetta Journal: Occup Environ Med Date: 2007-03-01 Impact factor: 4.402
Authors: Elizabeth S McClure; Pavithra Vasudevan; Nathan DeBono; Whitney R Robinson; Stephen W Marshall; David Richardson Journal: Am J Ind Med Date: 2020-07-10 Impact factor: 2.214