Absorption of Hazardous Pollutants by a Medicinal Fern Blechnum orientale L.

Table 2

Concentrations (mean ± SD, ng·g⁻¹ DW, 𝑛=10) of PAHs detected in the fronds of B.  orientale at the polluted site and the relatively unpolluted site.

PAH	Polluted site	Unpolluted site
Nap	87.27±19.12^∗	73.54±20.67
Acpy	0.52±0.18	0.83±0.63
Acp	0.65±0.28	0.60±0.34
Flu	22.19±4.39	32.60±14.63
PA	99.18±10.40^∗	56.81±26.77
Ant	7.68±2.30^∗	2.14±0.72
FL	6.42±1.69	4.80±1.85
Pyr	16.66±2.81	11.68±3.34
BaA	8.44±3.23^∗	2.98±1.18
Chr	9.59±2.59	12.77±3.95
BbF	3.03±1.22^∗	0.89±0.34
BkF	16.61±4.75^∗	4.02±1.99
BaP	2.19±0.61^∗	1.43±0.46
DBA	4.11±2.13^∗	1.10±0.58
IND	6.11±2.58^∗	1.93±1.25
BghiP	6.05±2.15^∗	1.96±0.42
∑PAHs	290.68±22.73^∗	210.09±36.07

An asterisk (∗) indicates a significant difference (𝑃<0.05) between the two sites according to a paired sample 𝑡-test.