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Table 1 Exposure characteristics based on measurements in three inhalation units

From: Diesel engine exhaust accelerates plaque formation in a mouse model of Alzheimer’s disease

Parameter Value
Mass concentration (mg/m3)a [SD] 0.95 [5–12%b]
Number concentrationc (#/cm3) [SD] 2.1 • 106 [0.35 • 106]
Geometric mean size (nm), [geometric SD (nm)] 82 [1.75]
CO (ppm) [SD] 6.37 [1.37]
NO (ppm) [SD] 23.11 [5.50]
NO2 (ppm) [SD] 1.56 [0.40]
NOx (ppm) [SD] 24.59 [5.81]
  1. aTime integrated Filter; bdepending on the exposure unit; cCPC; SD standard deviation