Research Article

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 3

Distribution and comparison of PAHs by season.

Winter season GM (95% CI) (ng/L)Summer season GM (95% CI) (ng/L) (winter versus summer)
Surface water (SW)Shallow groundwater (SG)Deep groundwater (DG) Surface water (SW)Shallow groundwater (SG) Deep groundwater (DG) (SW) (SG) (DG) (all)

Nap104.9 (86.4, 127.3)41.5 (34.7, 49.6)40.8 (33.5, 49.8)0.002054 (1127.1, 3743.2)757.6 (375.7, 1527.6)739.1 (430.8, 1267.9)0.05 0.000.000.000.00
Acy10.7 (8.1, 14)4.9 (4, 6)5.7 (4.7, 6.9)0.0032.7 (19.2, 55.8)18.2 (11.6, 28.6)12.5 (7.4, 21.1)0.020.000.000.030.00
Ace5.9 (4.4, 7.7)2.1 (1.6, 2.7)2.9 (2.2, 3.7)0.0096.1 (63.3, 145.9)45.8 (32.2, 65.3)36.0 (25.3, 51.3)0.000.000.000.000.00
Fl39.2 (30.6, 50.1)14.5 (12, 17.6)16.6 (13.4, 20.5)0.00421.5 (247.8, 717.1)200.9 (129, 312.9)167.7 (102.4, 274.7)0.020.000.000.000.00
Phe45.3 (35.1, 58.6)19.6 (13.8, 28)24.0 (18.2, 31.8)0.00730.5 (447.9, 1191.2)339.1 (204, 563.7)316.9 (201, 499.7)0.020.000.000.000.00
Ant4.4 (3.4, 5.8)2.6 (2, 3.4)2.6 (1.9, 3.5)0.0146.9 (28.3, 77.8)29.9 (18, 49.7)30.5 (20, 46.5)0.39 0.000.000.000.00
Flu18.9 (15.8, 22.7)16 (10.8, 23.7)10.0 (6.3, 15.8)0.06 102.3 (71.5, 146.4)68.8 (45.9, 103.1)50.6 (36.8, 69.6)0.020.000.000.000.00
Pyr18.0 (14, 23)17.5 (12.1, 25.4)13.3 (10.1, 17.4)0.27 66.4 (47.1, 93.6)55.2 (37.3, 81.6)41.9 (31.1, 56.3)0.18 0.000.000.000.00
BaA1.8 (1.4, 2.4)1.9 (1.1, 3.2)1.8 (1.2, 2.6)0.98 9.4 (7.2, 12.3)8.9 (6.7, 11.8)5.8 (4.5, 7.4)0.020.000.000.000.00
Chy8.3 (6.9, 9.9)6.1 (4.1, 9)5.3 (3.8, 7.6)0.21 31.3 (22.4, 43.9)19.6 (13.1, 29.5)15 (12.6, 17.8)0.000.000.000.000.00
BbF4.9 (2.8, 8.5)3.7 (2.1, 6.6)3.4 (1.8, 6.2)0.65 2.9 (2, 4.2)2.6 (1.7, 3.8)1.9 (1.5, 2.4)0.22 0.13 0.26 0.05 0.01
BkF7.5 (2.1, 26.7)4.3 (2.1, 8.8)5.1 (2.1, 12.4)0.50 43.9 (31.5, 61.3)22.4 (14.5, 34.6)29.8 (22.6, 39.2)0.030.000.000.000.00
BaP6.0 (3.6, 10.2)5.3 (2.5, 11.1)3.0 (1.9, 4.6)0.14 11.7 (9, 15.4)7.7 (5.4, 10.8)6.0 (4.8, 7.7)0.000.010.30 0.000.00
IcdP6.2 (2.9, 13.2)8.2 (2, 33.4)3.6 (1.2, 11.1)0.53 9.9 (5.7, 17)7.1 (4.9, 10.4)5.8 (4.2, 8)0.06 0.27 0.78 0.33 0.24
BghiP5.4 (2.5, 11.7)3.0 (1.5, 5.9)2.7 (1.3, 5.7)0.28 11.7 (8.4, 16.3)7.1 (5.4, 9.3)6.0 (4.9, 7.4)0.000.030.000.000.00
PAHs296.9 (253.5, 347.6)157.1 (122, 202.4)148.8 (121.6, 182)0.004054.7 (2427.2, 6773.6)1877 (1190.4, 2959.5)1611.7 (1035.7, 2508.1)0.010.000.000.000.00
(PAHs-c)28.6 (19.5, 41.9)18.2 (11.2, 29.6)16.6 (11, 25.1)0.33 122.7 (92.8, 162.2)83 (62.6, 110)69.6 (59, 82.2)0.000.000.000.000.00
BaPeq4.4 (2.2, 9)2.1 (0.9, 4.9)2.9 (1.6, 5.1)0.64 10.7 (8, 14.4)8.1 (6.6, 10)4.4 (2.2, 9)0.010.000.000.000.00

ANOVA results of the agents in SW, SG, and DG. , .
Carcinogenic PAHs.