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Figure 1 | Particle and Fibre Toxicology

Figure 1

From: Physico-chemical characterization of African urban aerosols (Bamako in Mali and Dakar in Senegal) and their toxic effects in human bronchial epithelial cells: description of a worrying situation

Figure 1

Chemical mass closure for the 3 class fractions of PM for Bamako and Dakar samples. For each site, the PM chemical composition of the 3 size fractions was totally determined by different analyses and results are presented as relative chemical abundance. Data are represented for Ultrafine PM (UF [0.03 μm-0.17 μm]), fine PM (F [0.17 μm-1 μm]), coarse PM (C [1 μm-10 μm]) and bulk aerosol. BC: Black Carbon; POM: Particulate Organic Matter; n.d.: not determined.

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