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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