Table 1.

Concentrations of polycyclic aromatic hydrocarbons (PAHs) in different types of surface soils from Taiyuan (ng g⁻¹).

Compounds	Urban Soils				Agricultural Soils				Montane Soils
	Min	Max	Mean	SD	Min	Max	Mean	SD	Min	Max	Mean	SD
Nap	8.35	38.67	19.53	9.53	9.29	31.26	14.65	5.55	6.13	17.97	11.18	3.92
Acy	1.94	23.58	11.00	6.87	1.42	55.89	7.70	11.94	1.08	3.88	2.36	0.90
Ace	1.84	13.24	5.61	3.39	1.48	71.11	7.97	15.73	0.71	15.53	5.20	4.08
Flu	6.26	42.40	14.72	9.21	3.83	30.16	9.36	5.92	3.94	14.48	7.97	3.50
Phe	24.44	324.52	128.31	80.13	18.61	510.73	81.29	107.66	17.17	80.96	35.75	18.62
Ant	3.74	149.62	30.41	36.35	3.65	77.97	12.21	16.86	1.49	8.44	3.53	1.82
Flt	37.85	424.45	200.46	120.64	9.31	1090.25	143.94	236.50	9.24	99.04	38.38	23.46
Pyr	33.15	308.48	144.02	83.56	6.32	816.54	107.35	177.14	6.87	65.52	27.38	15.14
BaA c	24.04	256.24	131.24	78.95	4.19	597.21	73.07	129.90	5.07	45.99	18.72	11.21
Chr c	24.79	209.74	113.31	55.82	8.70	521.56	78.88	111.03	6.65	73.05	28.71	17.52
BbF c	37.64	350.47	185.73	93.52	12.79	896.81	127.58	191.56	11.44	106.22	41.03	25.56
BkF c	16.43	156.38	75.64	40.84	4.00	392.74	53.61	84.34	4.01	36.56	15.39	8.61
BaP c	20.72	158.04	94.03	49.65	3.72	543.43	65.57	118.01	5.49	41.04	16.60	9.64
Ind c	18.06	144.87	76.29	38.45	4.94	414.53	57.12	88.76	7.31	38.31	17.23	8.24
DahA c	9.83	45.64	25.89	12.66	1.66	168.64	20.85	36.55	4.68	14.45	7.14	3.07
BghiP	24.81	148.13	82.42	38.77	6.85	431.22	62.89	91.82	8.28	44.00	20.74	9.65
∑7cPAHs	151.98	1285.07	702.12	362.94	39.99	3534.92	476.69	759.33	44.81	355.62	144.81	82.96
∑16PAHs	294.36	2540.64	1338.60	709.18	132.82	6594.63	924.05	1410.44	104.78	695.26	297.30	157.11

^c Carcinogenic PAHs.