Figure 1
From: Effects of wood smoke particles from wood-burning stoves on the respiratory health of atopic humans
The number of particles with diameters of Dp 10-110nm and of Dp 110-700nm during high, low, and clean air exposure is shown. Negative error bars for the lower size regime N10-110 show one standard variation and positive error bars for the larger size regime N110-700 show also one standard variation of the measurement. Please note that concentration values for the clean exposure sessions are multiplied by a factor of 10 (in order to make the bars visible on the figure).