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Table 2 Ambient levels of volatile organic compounds (VOCs) in the old and new buildings

From: Exposure to volatile organic compounds and airway inflammation

VOCs (μg/m3) Old building New building
TVOC 119 1054
5VOC Benzene 0.86 41.94
Toluene 13.5 235.15
Ethylbenzene 0.36 1.54
m, p Xylene 0.68 5.8
Styrene 0.38 1.15
o-Xylene 0.25 2.56
Formaldehyde 18.65 90.67
Acetaldehyde 3.8 12.99