Figure 2
Effects of particulate ambient air pollutants on fibrinogen, prothrombin fragment 1+2, and von Willebrand factor antigen (vWF), lag 0 to lag 4 and 5-day-mean exposure. 38 men with chronic pulmonary disease in Erfurt, Germany, between October 2001 and May 2002. IQR, interquartile range; UFP, ultrafine particles number concentration of particles with a size range of 0.01 to 0.1 μm in diameter; ACP, accumulation mode particles, particles with a size range of 0.1 to 1.0 μm; PM10, mass concentration of particles less than 10 μm in diameter; OC, organic carbon; EC, elemental carbon; lag 0 (1, 2, 3, 4, 5-day-mean) = average pollutant concentration 0-23 (24-47; 48-71, 72-95, 96-119, 0-119) hours prior to blood withdrawal.