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Fig. 4 | Environmental Health

Fig. 4

From: Associations between microvascular function and short-term exposure to traffic-related air pollution and particulate matter oxidative potential

Fig. 4

Effect modification of relations between microvascular function and air pollution by never and former smoker. Association of reactive hyperemia index (RHI) with one interquartile increase of selected air pollutant exposures averaged across 5 days preceding each subject’s RHI measurement. *p < 0.1, **p < 0.05, # p < 0.01, compared with no effect modification by smoking status. BC: black carbon; DTT: dithiothreitol; EC: elemental carbon; OC: organic carbon; PAHs: polycyclic aromatic hydrocarbons;  PM particulate matter; ROS: reactive oxygen species

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