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In this study, the ambient air quality had monitored in views of particulate matter levels and their heavy metals content in a high-altitude region, Shahr-e Kord for the first time. The levels of Total Suspended Particles (TSP), PM 10 , PM 2.5 , PM 1 , TSP-bound Heavy metals, and the related health risks had evaluated from December 2018 to March 2019. The average concentrations of TSP, PM 10 , PM 2.5 , and PM 1  were 61.85, 51.57, 19.28, and 3.03 µg/m 3 in December, 54.15, 19.68, 7.37, and 4.89 µg/m 3 in February, 24.05, 11.32, 4.42, and 2.88 µg/m 3 in January, 68.22, 33.72, 14.21, and 3.73 µg/m 3 in March respectively. The concentrations of HMs in TSP ranked in the following decreasing order: Hg&gt;As&gt;Mn&gt; Ni&gt; Cr&gt; Cu&gt;Pb (ng/m 3 ). The health risk assessment showed that the inhabitants in Shahr-e Kord were within the safe range of carcinogenic and non-carcinogenic risks attributed to the exposure with heavy metals present in ambient air.

international journal of environmental analytical chemistry

TSP, PM 10 , PM 2.5 , and PM 1  in ambient air of Shahr-e Kord, Iran’s rooftop; levels, characterisation and health risk assessment of particles-bound heavy metals