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Table 2 Environmental and alveolar concentration of products for which we prepared a specific calibration. Data are expressed in ppb and regard 219 samplings both for environmental and alveolar concentrations

From: Pancreatic ductal adenocarcinoma can be detected by analysis of volatile organic compounds (VOCs) in alveolar air

  Enviromental Concentration Alveolar Concentration
Mean Median range 5-95th percentile Mean Median range 5-95th percentile
Methanol 654 633 267-1789 323-1166 537 492 259-3021 294-841
Acetonitrile 196 129 34-1820 48-802 269 176 43-1840 66-1164
Ethanol 924 525 71-6244 121-3187 532 349 47-8668 88-1361
MEK 55 45 12-352 14-147 102 78 20-622 36-281
Acetone 217 181 52-2432 67-392 721 534 116-10,179 244-1676
Isoprene 20.8 18 5-262 8.9-34.4 160 149 17-428 63-292
n-Propanol 79 47 16-2093 20-172 98 80 31-619 45-194
Benzene 6.1 5.6 0.1-21 0.7-13 11.7 9.4 0.9-85.7 2.2-35.9
Toluene 5.2 4.8 0.1-22.1 1.1-11.7 5.8 4.8 0.6-25.9 1.6-14.5
n-Heptane 19.5 14.3 4.6-679.5 6.7-34.1 18.7 15.6 4.1-500.1 6-31.5
SO2 10.3 10.4 4.3-25.7 5.9-14.6 5.9 9.8 3.1-16.7 4.5-13.8
NH3 77 70 17-302 24-116 118 101 14-737 40-246