en Occupational Health Original Article <div style="text-align: justify;"><span style="font-family:times new roman;"><strong>Background:</strong> In most industries, employees are in contact with various chemical agents. The objective of this study was to assess the health risks posed by occupational exposure to harmful chemical agents in a pesticide manufacturing plant in Zahedan, Iran, in 2013.<br> <strong>Materials and Methods:</strong> This cross-sectional study was conducted in different units of a pesticide manufacturing plant. In order to evaluate the health risks associated with occupational exposure, a method provided by the Singapore Health Department was used. After identifying the pollutants, including benzene, toluene, ethylbenzene, and xylene (BTEX), CO, NO, NO2, and H2S, the degree of risk, the degree of exposure of the employees to the chemical agents, and the level of health risk were calculated.<br> <strong>Results: </strong>The results showed that the highest hazard rate (HR) in all units was related to benzene and the lowest HR was related to NO and H₂S. In the powder unit, the exposure rate (ER) and risk rate (RR) of NO₂ were higher than other pollutants. Additionally, in different units, the RR of benzene was 2.23, which was the highest among the pollutants. Generally, the RR of all pollutants was very low (insignificant) and low<span dir="RTL">.</span><br> <strong>Conclusions:</strong> By using information related to the risks of chemical agents and results of assessments of the health risks of exposure to chemical pollutants, different occupations can be ranked in terms of exposure to chemical risk factors. This ranking can be used to prioritize the allocation of resources for control measures and reduce exposure levels to acceptable levels.</span></div> Risk Assessment,Occupational Exposure,Pesticide, 171 177 http://johe.rums.ac.ir/browse.php?a_code=A-10-243-1&slc_lang=en&sid=1 F Laal Fereydoonlaal@gmail.com 22400319475328460010395 22400319475328460010395 No Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Zahedan University of Medical Sciences M Hormozi hormozym@yahoo.com 22400319475328460010396 22400319475328460010396 Yes Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran. Zahedan University of Medical Sciences R Fallah Madvari Fereydoonlaal@gmail.com 22400319475328460010397 22400319475328460010397 No , Dept. of Occupational Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Shahid Sadoughi University of Medical Sciences N Noorizadeh Fereydoonlaal@gmail.com 22400319475328460010398 22400319475328460010398 No Student Research Committee, Dept. of Occupational Health, Health School, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Shahid Beheshti University of Medical Sciences A Firouzi Chahak 22400319475328460010399 22400319475328460010399 No Dept. of Occupational Health, Faculty of Health, Gonabad University of Medical Sciences, Gonabad, Iran. Gonabad University of Medical Sciences