Multiple air pollutant exposure and lung cancer in Tehran, Iran

Khorrami, Z. and Pourkhosravani, M. and Rezapour, M. and Etemad, K. and Taghavi-Shahri, S. M. and Künzli, N. and Amini, H. and Khanjani, N.. (2021) Multiple air pollutant exposure and lung cancer in Tehran, Iran. Sci Rep, 11. p. 9239.

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Official URL: https://edoc.unibas.ch/89702/

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Lung cancer is the most rapidly increasing malignancy worldwide with an estimated 2.1 million cancer cases in the latest, 2018 World Health Organization (WHO) report. The objective of this study was to investigate the association of air pollution and lung cancer, in Tehran, Iran. Residential area information of the latest registered lung cancer cases that were diagnosed between 2014 and 2016 (N = 1,850) were inquired from the population-based cancer registry of Tehran. Long-term average exposure to PM10, SO2, NO, NO2, NOX, benzene, toluene, ethylbenzene, m-xylene, p-xylene, o-xylene (BTEX), and BTEX in 22 districts of Tehran were estimated using land use regression models. Latent profile analysis (LPA) was used to generate multi-pollutant exposure profiles. Negative binomial regression analysis was used to examine the association between air pollutants and lung cancer incidence. The districts with higher concentrations for all pollutants were mostly in downtown and around the railway station. Districts with a higher concentration for NOx (IRR = 1.05, for each 10 unit increase in air pollutant), benzene (IRR = 3.86), toluene (IRR = 1.50), ethylbenzene (IRR = 5.16), p-xylene (IRR = 9.41), o-xylene (IRR = 7.93), m-xylene (IRR = 2.63) and TBTEX (IRR = 1.21) were significantly associated with higher lung cancer incidence. Districts with a higher multiple air-pollution profile were also associated with more lung cancer incidence (IRR = 1.01). Our study shows a positive association between air pollution and lung cancer incidence. This association was stronger for, respectively, p-xylene, o-xylene, ethylbenzene, benzene, m-xylene and toluene.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
03 Faculty of Medicine > Departement Public Health > Sozial- und Präventivmedizin > Air Pollution and Health (Künzli)
09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Former Units within Swiss TPH > Air Pollution and Health (Künzli)
UniBasel Contributors:Künzli, Nino
Item Type:Article, refereed
Article Subtype:Research Article
ISSN:2045-2322 (Electronic)2045-2322 (Linking)
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:21 Dec 2022 14:42
Deposited On:21 Dec 2022 14:42

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