Table 5: Semiquantitative results of polycyclic aromatic hydrocarbon (PAH) concentration (ng/m3) in 24-hour PM2.5 air samples.

NAV78 winter indoorNAV151 winter indoorNAV78 winter outdoorNAV151 winter outdoorNAV151 summer indoor

1 methylnaphthalene1.3781.8031.1051.7210.988
1 methylphenanthrene0.0000.0000.8733.5880.000
2 methylnaphthalene0.7470.9361.0170.9290.591
2,3,5-trimethylnaphthalene0.0000.0000.0000.0000.000
2,6-dimethylnaphthalene0.3440.0000.4300.0000.000
3,6-dimethylphenanthrene0.0000.0000.0000.5650.000
acenaphthene0.0000.0000.0000.0000.000
acenaphthylene0.0000.0000.0001.3450.000
anthracene0.0000.0710.0001.7730.000
benzo[a]anthracene4.3463.7605.04028.9680.000
benzo[a]pyrene5.22321.8134.69326.5043.443
benzo[b] fluoranthene22.65431.7098.02142.2119.562
benzo[e]pyrene14.31233.9875.69424.67414.396
benzo[ghi]perylene19.706116.1065.68425.98681.793
benzo[k] fluoranthene22.50032.7238.78241.6697.067
biphenyl0.0000.7620.3370.0000.000
chrysene8.8295.6767.50539.6720.000
dibenzo[ah]anthracene5.0788.7376.7577.6990.000
dibenzothiophene0.0000.0000.0000.0000.000
fluoranthene2.8184.4943.74623.8941.444
fluorene0.2830.0000.0000.6990.000
indeno[123cd]pyrene27.72081.6817.14336.94338.791
naphthalene2.3224.3991.3952.8512.010
perylene0.0005.3772.9267.0580.000
phenanthrene2.8605.0682.74912.3680.000
pyrene1.6675.6814.00425.7491.713
total ng142.786364.78177.902356.866161.797
average ng5.49214.0302.99613.7266.223
avg ng/m30.1710.4360.0930.4270.193