Volume 10, Issue 4 (December 2025)
J Environ Health Sustain Dev 2025, 10(4): 2870-2877 |
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Ethics code: IR.Khoy.REC.1403.039
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Sheikhmohammadi A, Mohammadi A, Atafar Z, Shakuri A, Rasoulzadeh S, Aghanaghad M. Health Risk Assessment of Exposure to SO2 and NO2 Resulting from Power Plant Fuel Change Using Monte Carlo Simulation. J Environ Health Sustain Dev 2025; 10 (4) :2870-2877
URL: http://jehsd.ssu.ac.ir/article-1-976-en.html
URL: http://jehsd.ssu.ac.ir/article-1-976-en.html
Amir Sheikhmohammadi 
, Amir Mohammadi , Zahra Atafar , Ahmad Shakuri , Shiva Rasoulzadeh , Mohammad Aghanaghad *
, Amir Mohammadi , Zahra Atafar , Ahmad Shakuri , Shiva Rasoulzadeh , Mohammad Aghanaghad *
Department of Environmental Health Engineering, School of Health, Khoy University of Medical Sciences, Khoy, Iran
Abstract: (87 Views)
Introduction: Exposure to air pollutants is a serious concern that leads to numerous health issues. Power plants are one of the main sources of pollutant emissions, including sulfur dioxide and nitrogen dioxide. This study aimed to estimate the non-carcinogenic risk associated with exposure to SO2 and NO2 at a power plant in northwestern Iran.
Materials and Methods: SO2 and NO2 concentrations in the power plant exhaust gas and the power plant area were collected from official data recorded during regular monitoring. The health risk of exposure to the detected concentrations of SO2 and NO2 was assessed by calculating the hazard quotient based on the estimated chronic daily intake.
Results: The analysis showed that the concentrations of SO2 and NO2 in the studied area were 12.60 and 20.18 μg/m3, respectively. However, the concentrations of the total studied pollutants in winter were 45.10% higher than those in summer. In addition, the mean hazard quotient of exposure to SO2 and NO2 was calculated as 0.0369 and 0.0905, respectively. But, the use of diesel for energy production in a power plant resulted in a 65.07% higher non-carcinogenic risk than the use of gas as a power plant fuel.
Conclusion: Although the health risk of exposure to the studied pollutants was not significant (HI = 0.127) in the current situation, the use of diesel significantly increased the health risk owing to increased pollutant emissions.
Materials and Methods: SO2 and NO2 concentrations in the power plant exhaust gas and the power plant area were collected from official data recorded during regular monitoring. The health risk of exposure to the detected concentrations of SO2 and NO2 was assessed by calculating the hazard quotient based on the estimated chronic daily intake.
Results: The analysis showed that the concentrations of SO2 and NO2 in the studied area were 12.60 and 20.18 μg/m3, respectively. However, the concentrations of the total studied pollutants in winter were 45.10% higher than those in summer. In addition, the mean hazard quotient of exposure to SO2 and NO2 was calculated as 0.0369 and 0.0905, respectively. But, the use of diesel for energy production in a power plant resulted in a 65.07% higher non-carcinogenic risk than the use of gas as a power plant fuel.
Conclusion: Although the health risk of exposure to the studied pollutants was not significant (HI = 0.127) in the current situation, the use of diesel significantly increased the health risk owing to increased pollutant emissions.
Type of Study: Original articles |
Subject:
Air and waste management
Received: 2025/10/12 | Accepted: 2025/11/20 | Published: 2025/12/25
Received: 2025/10/12 | Accepted: 2025/11/20 | Published: 2025/12/25
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