[The influence of occupational exposure and smoking on lung ventilation of coke oven workers].
OBJECTIVE
To study the influence of occupational exposure and smoking on lung ventilation function of coke oven workers.


METHODS
Environmental monitoring was performed on the top, side and bottom of some coke ovens. Lung ventilation function test was performed in 234 coke oven workers.


RESULTS
The poison concentration in environment had such tendency as it was the highest on the top, then the side, and the lowest at the bottom. The standardized forced expiratory volume in the 1st second (FEV(1), 90.8% +/- 8.6%) and forced expiratory rate (FEV(1)%, 95.4% +/- 12.4%) of those coke oven workers who smoked were significantly lower than those non-smoking workers (100.9% +/- 14.3%, 108.9% +/- 17.6%); among those smoking workers, the partial correlation coefficients between forced vital capacity (FVC) and benzene soluble, benzopyrene, and smoking index were -0.249, -0.187 and -0.368 respectively; and the coefficients between FEV(1) and the three aspects were -0.255, -0.191 and -0.388; and the coefficients between FEV(1)% and them were -0.131, -0.107 and -0.065. Among those non-smoking workers, the coefficients between benzene solubles and FVC, FEV(1) and FEV(1)% were -0.154, -0.052 and -0.176, and between benzopyrene and them were -0.121, -0.037 and -0.159.


CONCLUSIONS
The lung ventilation function of coke oven workers has certain negative correlation with both occupational exposure and smoking.
Yang
Xiao-bo
XB
Institute of Occupational Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province 430030, China.
Yi
Ji-hu
JH
Wei
Yang-zhou
YZ
Wang
Lin-chao
LC
Jiang
Chang-zheng
CZ
Wu
Tang-chun
TC
D000328:Adult; D000395:Air Pollutants, Occupational / Q000032:analysis; D001554:Benzene / Q000032:analysis; D003077:Coke; D005541:Forced Expiratory Volume; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects*; D012123:Pulmonary Ventilation / Q000502:physiology*; D012907:Smoking / Q000503:physiopathology*
D000395:Air Pollutants, Occupational; D003077:Coke; D001554:Benzene