Correlation between pulmonary function and air pollutant emissions for woolen and dust factory workers in Dongguan city
10.3969/j.issn.1671-8348.2016.10.021
- VernacularTitle:东莞市毛线及粉尘厂工人肺功能及其与空气污染的相关性分析
- Author:
Yanmei LIN
- Publication Type:Journal Article
- Keywords:
air pollution;
lung function;
PM2 .5;
occupational disease
- From:
Chongqing Medicine
2016;45(10):1364-1366
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the correlation between the pulmonary function and air pollutant emissions for the woolen and dust factory workers in Dongguan city .Methods Totally 519 yarn factory (wool group) and 503 dust factory (dust group) workers ,and 326 individuals (control group) undergoing the healthy physical examination were selected ,the respirometer was a‐dopted to detect the pulmonary function .The air sampling was carried out in the above factory areas and non‐factory communities , then the concentrations of silicon dioxide (SO2 ) ,nitrogen dioxide (NO2 ) ,silica (SaO2 ) ,cotton and other PM2 .5 mass were meas‐ured ,and their correlation with the lung function was analyzed .Results Compared with the control group ,the forced vital capacity (VC) ,forced vital capacity (FVC) ,maximal voluntary ventilation(MVV) ,first second forced expiratory volume (FEV1 .0) and ra‐tio of first second forced expiratory volume and forced vital capacity (FEV1 .0 % ) in the workers of wool group and dust group were decreased (P<0 .05) ,while VC and FVC had no statistical differences between the wool group and dust group ,but MVV , FEV1 .0 and FEV1 .0% had statistical difference between these two groups (P<0 .05) ,moreover the dust group was significantly lower than the wool group (P<0 .05) .In the comparison of air pollution ,the cotton dust concentration in the yarn factory area was significantly higher than that in the dust factory area and the non‐factory community (P<0 .05) ,while SO2 ,NO2 ,SaO2 and other PM2 .5 substances were significantly lower than those in the dust factory area ,but significantly higher than those in the non‐factory community ,moreover the above five concentrations had statistical differences between any two groups (P<0 .05) .The Pearson cor‐relation analysis showed that any one of SO2 ,NO2 ,SaO2 ,cotton dust and other PM2 .5 substance concentrations had significantly negative correlation with any one of VC ,FVC ,MVV ,FEV1 .0 and FEV1 .0% (r>0 .60 ,P<0 .05) .Conclusion The air pollution in the partial factories in our city is heavier and the lung function of workers are injured ;the cotton dust content is high in the yarn factories area and the SO2 content is high in the dust factories ,which may be the main factors of the lung function injury in the woolen yarn and dust factory workers .
