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Fig. 6 | Particle and Fibre Toxicology

Fig. 6

From: Cytotoxic and inflammatory potential of size-fractionated particulate matter collected repeatedly within a small urban area

Fig. 6

Metal composition of size-fractionated particulate matter. a Levels of total metals and selected metal concentrations (mass concentration per volume of air, ng/m3). A complete table of metal concentrations is presented in Additional file 6: Table S2. b Principal component analysis of particles according to metal composition. Black fill, industrial site (W1); grey fill, traffic site (W2)

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