Polycyclic Aromatic Hydrocarbons Concentrations in Drinking Water in Villages along the Huai River in China and Their Association with High Cancer Incidence in Local Population

Table 5

Comparison of PAHs between risk and control groups by season.

	value in winter season (risk versus control)			value in summer season (risk versus control)
	Surface; water	Shallow; groundwater	Deep; groundwater	Surface; water	Shallow; groundwater	Deep; groundwater
Nap	0.53	0.06	0.73	0.84	0.99	0.38
Acy	0.09	0.01	0.34	0.20	0.61	0.47
Ace	0.96	0.37	0.14	0.84	0.08	0.80
Fl	0.96	0.33	0.10	0.40	0.46	0.84
Phe	0.96	0.67	0.41	0.28	0.80	0.80
Ant	0.80	0.39	0.42	0.20	0.37	0.55
Flu	0.56	0.88	0.62	0.22	0.61	0.98
Pyr	0.58	0.62	0.80	0.13	0.94	0.37
BaA	0.04	0.46	0.77	0.55	0.46	0.73
Chy	0.21	0.99	0.84	0.37	0.66	0.42
BbF	0.17	0.82	0.69	0.93	0.86	0.24
BkF	0.84	0.88	0.58	0.66	0.40	0.03
BaP	0.79	0.62	0.93	0.31	0.24	0.96
IcdP	0.88	0.70	0.69	0.76	0.90	0.89
BghiP	0.69	0.11	0.46	0.43	0.65	0.81
PAHs	0.80	0.46	0.85	0.57	0.96	0.61
(PAHs-c)	0.89	0.86	0.67	0.51	0.35	0.39
BaPeq	0.91	0.84	0.68	0.73	0.29	0.73

Carcinogenic PAHs. , .