Determine and estimate the carcinogenic risk of benzene and ethyl benzene in the fall and winter in the west of Tehran with EPA-IRIS software

Subject Areas : Environmental pollution

Arsalan Keramati ¹ , Shahrzad Khoramnejhadian ² , farid gholamrezafahimi ³ , سمیرا قیاسی ⁴

1 - Department of Environment, Damavand Branch, Islamic Azad University, Damavand, Iran
2 - Department of environment, Damavand Branch, Islamic Azad University, Damavand, Iran
3 - environmental engineering,Islamlamic azad university
4 - استادیار گروه مهندسی نفت، دانشکده فنی مهندسی، واحد تهران مرکز، دانشگاه آزاد اسلامی، تهران، ایران

Received: 2024-08-06 Accepted : 2024-09-17 Published : 2024-09-19

Keywords: Volatile organic compounds, air pollution, carcinogenicity, health,

Abstract :

Introduction: The city of Tehran is exposed to numerous contaminants due to its geographical structure and population. In this study, the amount of benzene and ethyl benzene was measured in the autumn and winter season in some of the highways of Tehran. The absence of volatile organic compounds caused by fossil fuel burning of its carcinogenic risk was also investigated and compared with previous studies.

 

Materials and Methods: 10 stations on northwestern Tehran highways were identified to measure benzene and ethyl benzene. Cancer risk assessment was performed using IRIS-EPA software. The BTEX concentration was measured using the method of 1501 National Institutes of Career Safety and Health (NIOSH 1501), which used SKC coal absorbent pipes for sampling.

Results and Discussion: The highest cancer risk of benzene at the Sheikh Fazlullah Nouri highway station and the highest risk of ethyl benzene was at the same station.

Conclusion: In the autumn and winter, benzene and ethyl benzene had 1≥ HQ. Cancer risk for residents and employees showed that despite the high levels of benzene, there was no risk of carcinogenicity and mutation during the test. Given that most people use highways; it does not threaten much of pedestrians.

 

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