acids were also found in other species. On the other hand,
the A. scholaris leaf material showed high benzene adsorption
efficiency and contained high amounts of alphalinoleic
acid and octadecanoic acid. In D. picta and A.
aureum leaf materials, high benzene removal efficiency
were also found, and these two materials also contained
alpha-linoleic acid and octadecanoic acid. From the
results, the plant leaf materials that contained high
alpha-linoleic acid had mostly high benzene adsorption
efficiency. As shown in (Fig. 4a.), 0.44 of r2 was
found in the statistical correlations of % linoleic
acid and benzene adsorption. In addition, the statistical
correlations of octadecanoic acid and benzene
adsorption have been shown very low r2 of 0.040
(Fig. 4b).