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The concentrations of sixteen polycyclic aromatic hydrocarbons (PAHs) and trace metals adsorbed to respirable particulate matter (PM ≤ 10 μm) and the fine fraction of particulate matter (PM ≤ 2.5 μm) were determined at a site in Delhi (India) during the winter and summer periods in 2007–2008. The annual mean concentrations for PM 10 and PM 2.5 were 138.5 ± 40.4 μg m −3 and...
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