Metal Sweet Basil
(Ocimum basilicum)
Black Basil
(Ocimum sanctum)
Dwarf Basil
(Ocimum minumum)
As 2.1 1.8 1.2
Cr 21.4 24.4 7.8
Mn 192 267 124
Fe 10814 9043 2465
Ni 18.6 13.2 5.7
Cu 29.2 21.4 15.1
Zn 34.2 28.2 11.8
Hg 2.1 2.0 1.2
Pb 18.5 9.4 8.0
Table 2: Metal contents in leaf mg kg-1 dry weight.