. 2014 Oct 13;9(10):e109548. doi: 10.1371/journal.pone.0109548

Table 1. The variability and average content of PAHs.

	The range and average content of PAHs in sewage sludge in both locations [μmol/kg)				The range and average content of PAHs in the foliage of Phragmites communis growing on sewage sludge in both locations [μmol/kg]				The range and average content of PAHs in the foliage of Polygonum persicaria growing on sewage sludge in both locations [μmol/kg]				The range and average content of PAHs in the foliage of Bidens tripartita growing on sewage sludge in both locations [μmol/kg]
PAH	mean		mean±SD	Range (min-max)			mean±SD	Range (min-max)	mean		mean±SD	Range (min-max)	mean		mean±SD	Range (min-max)
	L1	L2	Both locations		L1	L2	Both locations		L1	L2	Both locations		L1	L2	Both locations
Frn	0.5	0.34	0.417±0.262	0.003–0.952	0.0963	0.0995	0.098±0.051	0.029–0.209	0.1395	0.1023	0.116±0.055	0.064–0.213	0.1564	0.0729	0.123±0.083	0.022–0.251
Ph	2.32	1.43	1.856±1.04	0.372–4.105	0.2055	0.3411	0.299±0.314	0.137–1.458	0.2713	0.2852	0.28±0.077	0.182–0.416	0.2791	0.3191	0.295±0.063	0.212–0.36
A	0.52	0.30	0.404±0.327	0.109–1.362	0.0163	0.0187	0.018±0.010	0.009–0.036	0.0189	0.0164	0.017±0.007	0.008–0.029	0.0164	0.0228	0.019±0.01	0.01–0.032
Ftn	4.01	3.14	3.558±1.745	0.706–7.043	0.1073	0.1206	0.116±0.025^a	0.061–0.161	0.1525	0.1584	0.156±0.052^ab	0.084–0.256	0.1674	0.1736	0.170±0.033^b	0.136–0.217
P	2.94	2.1	2.503±1.457	0.628–5.671	0.0617	0.0686	0.066±0.025	0.031–0.113	0.0971	0.0721	0.081±0.039	0.041–0.179	0.0875	0.1034	0.094±0.019	0.069–0.114
BaA	1.23	1.2	1.215±0.979	0.225–3.053	0.0050	0.0076	0.007±0.004	0.002–0.015	0.0096	0.0097	0.01±0.004	0.006–0.018	0.0119	0.0100	0.011±0.004	0.007–0.017
Ch	1.64	1.59	1.614±1.214	0.23–3.799	0.0126	0.0214	0.019±0.015	0.007–0.073	0.0273	0.0190	0.022±0.011	0.012–0.049	0.0151	0.0254	0.019±0.009	0.009–0.029
BbF	1.85	2.1	1.981±1.034	0.36–3.801	0.0071	0.0187	0.010±0.004	0.004–0.018	0.0202	0.0130	0.016±0.01	0.008–0.041	0.0082	0.0132	0.01±0.003	0.007–0.014
BkF	0.7	0.91	0.811±0.507	0.153–1.937	0.0034	0.0049	0.004±0.002	0.002–0.007	0.0280	0.0064	0.014±0.025	0.002–0.087	0.0038	0.0054	0.004±0.001	0.003–0.006
BaP	1.52	1.83	1.679±0.924	0.266–3.256	0.0051	0.0073	0.007±0.004	0.002–0.012	0.0133	0.0097	0.011±0.006	0.006–0.026	0.0058	0.0103	0.008±0.003	0.003–0.011
DahA	0.34	0.34	0.342±0.314	0.026–1.163	0.0014	0.0027	0.002±0.001	0.001–0.006	0.0042	0.0021	0.003±0.004	0.000–0.014	0.0023	0.0020	0.002±0.002	0.001–0.004
BghiP	1.47	1.49	1.48±0.764	0.228–2.839	0.0025	0.0057	0.005±0.003	0.001–0.012	0.0096	0.0067	0.008±0.005	0.003–0.018	0.0057	0.0039	0.005±0.002	0.003–0.009
IP	1.2	1.43	1.32±0.691	0.217–2.583	0.0025	0.0050	0.004±0.002	0.001–0.009	0.0092	0.0072	0.008±0.005	0.002–0.018	0.0051	0.0054	0.005±0.001	0.003–0.007

^a,b

– different letters indicate significant differences between means for species on the basis of Kruskal-Wallis test (P<0.05).