Table 2. Concentrations of Benzo[a]pyrene (BaP), Sum of 16 Parent PAH (T-PAH), and Sum of the Seven B2 PAH Measured in Settled House Dust (SHD) and in Dust from the Associated Parking Lot^a.

		BaP (μg/g)		T-PAH (μg/g)		B2 PAH (μg/g)
pavement surface type	parking lot designation	SHD	parking lot	SHD	parking lot	SHD	parking lot
coal-tar-sealcoated asphalt	CT	3.42	149	44.5	2300	21.8	1050
coal-tar-sealcoated asphalt	CT	15.2	671	191	10 300	94.1	4230
coal-tar-sealcoated asphalt	CT	10.9	305	152	5070	70.3	2040
coal-tar-sealcoated asphalt	CT	4.04	131	54.6	2010	29.4	1110
coal-tar-sealcoated asphalt	CT	14.3	36.7	214	591	104	282
coal-tar-sealcoated asphalt	CT	1.21	26.8	19.6	387	8.62	191
coal-tar-sealcoated asphalt	CT	1.41	21.4	26.4	405	18.2	166
coal-tar-sealcoated asphalt	CT	7.33	518	137	11 300	53.8	4020
coal-tar-sealcoated asphalt	CT	4.50	285	64.3	4760	30.1	2080
coal-tar-sealcoated asphalt	CT	4.44	555	129	8900	47.0	3940
coal-tar-sealcoated asphalt	CT	24.2	511	335	6960	156	3330
unsealed concrete	NCT	0.15	1.05	1.94	15.1	0.98	7.51
unsealed asphalt	NCT	1.36	2.97	18.3	48.7	9.35	20.1
asphalt-sealcoated asphalt	NCT	3.91	0.60	43.0	10.9	22.2	5.36
asphalt-sealcoated asphalt	NCT	0.58	0.30	6.05	4.43	3.17	2.36
unsealed asphalt	NCT	1.50	0.50	22.2	5.89	8.54	2.96
unsealed asphalt	NCT	2.05	3.36	27.1	42.0	11.7	22.1
unsealed concrete	NCT	12.4	0.49	194	7.79	85.8	3.60
unsealed asphalt	NCT	0.06	0.14	1.04	2.28	0.45	1.19
unsealed asphalt	NCT	0.26	0.19	4.12	3.32	1.81	1.43
unsealed asphalt	NCT	0.23	1.35	3.81	17.4	1.68	8.76
asphalt-sealcoated asphalt	NCT	0.30	0.56	4.11	10.2	2.27	5.20
unsealed asphalt	NCT	0.25	0.06	3.32	1.10	1.58	0.42

^aCT, apartment complex has a coal-tar-sealcoated parking lot; NCT, apartment complex does not have a coal-tar-sealcoated parking lot.