Carcinogenicity and non-carcinogenicity Risk Assessment encounter of air heavy metals

Subject Areas : Environmental pollutions (water, soil and air)

seyyed reza karimi ¹ , nabiollah mansouri ² , lobat taghavi ³ , Mazaher Moeinaddini ⁴

1 - PhD Student, Department of Environmental Science and Engineering, Faculty of Natural Resources and Environment, Islamic Azad University, Science and Research Branch, Tehran, Iran.
2 - Professor, Department of Environmental Engineering, Faculty of Natural Resources and Environment, Islamic Azad University, Science and Research Branch, Tehran, Iran. *(Corresponding Author)
3 - Associate Professor, Department of Environmental Sciences, Faculty of Natural Resources and Environment, Islamic Azad University, Science and Research Branch, Tehran, Iran.
4 - Associate Professor, Department of Environmental Sciences, Faculty of Natural Resources, University of Tehran, Karaj Campus of Agriculture and Natural Resources, Iran.

Received: 2022-04-10 Accepted : 2022-06-27 Published : 2022-08-23

Keywords: Exposure, Atmosphere, Carcinogenicity, Health risk assessment, Heavy Metals,

Abstract :

Background and Objective: Some heavy metals in the air are very important due to their biomagnification properties, persistence and harmful effects on human health. The main goal of this research is to identify and assess the risk of heavy metals that have carcinogenic and non-carcinogenic potential for the people of Region 21. Material and Methodology: District 21 of Tehran was selected as the study area due to its industrial and semi-industrial uses. According to ASTM and EPA standards, 50 air samples were taken from different uses of Region 21 in 2021 using high volume pumps with the help of fiberglass filters. The concentration of heavy metals was determined using ICP-OES. Cancer and non-cancer risk assessments were also calculated using the IRIS integrated information system method. Findings: The average concentration of heavy metals in the decreasing trend is Li <Ti <W <Pb <Sr <Mg <Fe <Zn <Cr <Al, respectively, with aluminum having the highest concentration of 58.87 µg/m3 and lithium with 0.01 µg/m3 has the lowest concentration. In addition, the results of respiratory risk assessment indicate that HQ aluminum with 1/13E+01 has a non-cancer risk and Cr lead with 1/49E-05 has a cancer risk. Discussion and Conclusion: Comparing the amount of lead with the US national standard shows that the concentration of lead is not at the appropriate level. The findings of this study can help in formulating appropriate strategies by city managers and prioritizing the control of heavy metals in the air.

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