Figure 1
From: Effect of wood smoke exposure on vascular function and thrombus formation in healthy fire fighters
Particulate matter concentration during exposures. (a) A typical time-series of particle mass concentrations (PM1) in the chamber during a single 1 hour exposure measured with TEOM with data points every 30 seconds. (b) Average mass concentrations (PM1) in the chamber during the 1 hour exposures measured with TEOM (n = 16) every 30 seconds (mean ± standard deviation).