Table 4

Concentrations in the three micro-environments (μg/m3), n(PM2.5)=4; n(NO2)=3; n(VOC)=2

FumareNon fumareOutdoor
Air pollutantAMASDAMASDAMASD
AM, arithmetic mean; ASD, arithmetic standard deviation; VOC, volatile organic compounds
PM2.5163.832.236.211.810.73.9
NO249.02.2414.533.60.6
VOC
    Benzene3.00.30.90.10.80.0
    Toluene9.90.34.31.04.50.5
    Ethylbenzene1.30.10.60.10.60.0
    m/p-xylene4.00.21.80.31.80.2
    o-xylene1.20.00.60.10.60.1
    Styrene1.20.30.20.00.10.0