Ginger is an important ingredient of spice and herbals. The monitoring of toxic heavy metals in the rhizome
of ginger is important for protecting public health against the hazards of metal toxicity. The concentration
of volatile and non-volatile metals (As, Hg, Pb and Cd), in the soil and rhizome of Zingiber
officinale were analyzed using AAS. Soil analysis profile showed uniformity in the metal contents, in active
root zone and subsoil, except mercury, which was present in higher quantity in one, out of the four sectors,
of the field. The infield metal content in the soil in increasing order was, cadmium < arsenic < lead <
mercury. In ginger rhizome the volatile toxic heavy metals arsenic (As) and mercury (Hg) varied from not
detected to 0.13 lg/g and 0.01 to 0.42 lg/g, respectively. The non-volatile metals lead (Pb) and cadmium
(Cd) ranged from 0.06 to 0.64 lg/g and 0.002 to 0.03 lg/g, respectively. The results illustrated the findings
that soil is the major but not the only source of metal accumulation in the plants. In our study, the volatile
metal content (As, Hg) was found more in rhizomes collected from Himachal Pradesh while the non-volatile
metals were predominant in samples from Uttarakhand.
Ginger is an important ingredient of spice and herbals. The monitoring of toxic heavy metals in the rhizome
of ginger is important for protecting public health against the hazards of metal toxicity. The concentration
of volatile and non-volatile metals (As, Hg, Pb and Cd), in the soil and rhizome of Zingiber
officinale were analyzed using AAS. Soil analysis profile showed uniformity in the metal contents, in active
root zone and subsoil, except mercury, which was present in higher quantity in one, out of the four sectors,
of the field. The infield metal content in the soil in increasing order was, cadmium < arsenic < lead <
mercury. In ginger rhizome the volatile toxic heavy metals arsenic (As) and mercury (Hg) varied from not
detected to 0.13 lg/g and 0.01 to 0.42 lg/g, respectively. The non-volatile metals lead (Pb) and cadmium
(Cd) ranged from 0.06 to 0.64 lg/g and 0.002 to 0.03 lg/g, respectively. The results illustrated the findings
that soil is the major but not the only source of metal accumulation in the plants. In our study, the volatile
metal content (As, Hg) was found more in rhizomes collected from Himachal Pradesh while the non-volatile
metals were predominant in samples from Uttarakhand.
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