Levels and Health Risk Assessments of Particulate Matters (Pm 2.5 and Pm 10 ) in Indoor/Outdoor Air of Waterpipe Cafes in Tehran, Iran Publisher Pubmed



Heydari G¹ ; Taghizdeh F² ; Fazlzadeh M^{3, 4} ; Jafari AJ^{2, 5} ; Asadgol Z² ; Mehrizi EA^{2, 6} ; Moradi M⁷ ; Arfaeinia H^{8, 9} Show Affiliations
Source: Environmental Science and Pollution Research Published:2019

Abstract

To determine the concentration of particulate matters (PM 2.5 and PM 10 ), 36 samples were collected from indoor/outdoor air of hookah cafes (HS), cigarette cafes (CS), both hookah and cigarette (HCS), and no-smoking building (NS) in Tehran City from December 2017 to March 2018. The mean ± SD of PM 10 concentration in the indoor air of the cafes in terms of HS, CS, HCS, and NS sites has been 702.35, 220.20, 1156.60, and 60.12 μg/m 3 , while for PM 2.5 , the values have been 271.92, 111.80, 619.10, and 22.25 μg/m 3 , respectively. It was also found that the PM concentration inside the cafes was higher during weekend session (with a higher number of active smokers), than during the weekday sessions. Moreover, the PM levels in the indoor air of the cafes were considerably higher than those of the outdoors (p < 0.05). Based on path analysis, the number of “active smokers” had the highest influence on production of PM inside the cafes, followed by the tobacco type. Finally, the mean excess lifetime cancer risk (ELCR) for PM 2.5 in the indoor air of cafes was observed in the range of 0.64 × 10 −5 –14.98 × 10 −5 . Also, the mean of hazard quotient (HQ) for PM2.5 and PM 10 was calculated in range of 0.82–18.4 and 0.16–3.28, respectively, which corresponds to an unacceptably high risk for human health. The PM levels in the indoor air of smoking cafes in Tehran are significantly high, such that it can cause serious risks for the health of both the customers and personnel. Thus, it is necessary that suitable controlling strategies be adopted for this public health threat. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.