Main Article Content
Toxic effect of naphta exposure on respiratory system among workers in the tyre industry
Abstract
200.51 mg/m3 (PEL is 400 mg/m3). The lung function tests showed in 2 groups for all the 3 parameters
(FVC%, FEV1% and FEV1/FVC) were in exposed group 96.16, 85.23 and 0.791 respectively and in Unexposed group was 113.23, 116.28 and 0.903 respectively. The lung function tests showed that there were significant difference in the 2 groups for FVC% (p < 0.001), FEV1% (p < 0.001) and FEV1/FVC% (p =0.002). Multiple linear regression test showed that monthly household income significantly influence the FVC% predicted (b = 0.003, p < 0.001) and FEV1% predicted (b = 0.006, p < 0.001). In conclusion there was an inverse relationship between air naphtha concentrations and lung functions ability. Early
impairment of the respiratory system is detected on the workers who are exposed to naphtha which made up of several chemicals.