The Effect of Exposure to Respirable Dust on Blood Parameters of Workers in a Tile and Ceramic Industryin, Yazd

Introduction: The relationship between elevated level of gas and particulate pollutants with increased mortality resulting from cardiovascular and respiratory diseases has been presented in epidemiological studies. Although the principal mechanisms of diseases are still unknown, inflammatory and homeostatic processes have been known to be related to this issue. Accordingly, this study was conducted with the aim of evaluating the relationship between exposure to respirable particulates and blood parameters of workers in a tile and ceramic industry in Yazd Materials and Methods: In this crosssectional study, 80 healthy workers who were exposed to mineral particulates participated. To determine the concentration of respirable particulates, sampling was performed on the respiratory area based on NIOSH_0600 method, and the blood parameters were measured using standard method. Results: The mean concentration of respirable dust was 2.55 mg/m3, which is lower than standard limit (3 mg/m3). To determine the relationship between the concentration of respirable dust and blood parameters, robust regression test was used and this concentration was significantly and positively correlated with WBC. There was also a significant and negative relationship between MCH and respirable dust in the crude model. Conclusion: Exposure of individuals to respirable dust within a level of 0.0582.84 mg/m3 has been followed by elevated WBC. As a significant number of people work in tile and ceramic industry and are exposed to high levels of pollutants and are also susceptible to different diseases, change to improve the work and preventive measures are essential.