Figure 4From: Pulmonary responses in current smokers and ex-smokers following a two hour exposure at rest to clean air and fine ambient air particles Estimated differences between CAFP and CA exposures for selected venous blood markers of inflammation, prothrombotic activity, and lung injury measured at 3 h and 22 h post exposure. The estimates are expressed as % point differences per 100 μg/m3 increase in PM concentration and relative to pre-exposure level. Horizontal bars correspond to 95% confidence intervals. None of the mediators showed a statistically significant change. For abbreviations see text.Back to article page