Review of Edible Plants in Dumpsites: Risks of Heavy Metals Toxicity and Implications for Public Health | Chapter 13 | Advances and Trends in Agricultural Sciences Vol. 3
Studies of dumpsites have revealed that
the surrounding soils and water are contaminated with high threshold of heavy
metals through anthropogenic inputs. In this review, the uptake and toxicity
risks of these heavy metals by habitual edible plants at levels above threshold
limit and the implications for public health have been discussed. Edible plants
are plants with nutritional and medicinal potentials which can salvage numerous
human and animal needs when taken. Edible plants like most other underutilized
plants in dumpsites have developed mechanisms which enable them to not only
survive but accumulate high level of toxic heavy metals due to high level of
environmental metal load in the dumpsites. This ultimately could lead to high
human and animal exposure to these toxic elements through food-chain/food-web
or direct ingestion of soils. The toxic effects caused by excess concentrations
of these heavy metals in living organisms vary considerably and present
numerous clinical situations ranging from neurological disorder, cellular
damage among others and death in extreme cases. This review suggest the urgent
need for policy makers to regulate the use of dumpsites for arable farming and
the dependence on edible plants in dumpsites to avert heavy metal poisoning in
populations.
Author(s) Details
Nwogo Ajuka Obasi
Environmental Biochemistry,
Health and Toxicology Research Unit, Department of Medical Biochemistry,
Federal University Ndufu-Alike Ikwo, Nigeria.
Mrs. Stella Eberechukwu
Obasi
Department of Science
Laboratory Technology, Akanu Ibiam Federal Polytechnic Unwana, Nigeria.
Getrude Obianuju Aloh
Department of Geography and
Meteorology, Faculty of Environmental Sciences, Enugu State University of
Science and Technology, Enugu State, Nigeria.
Sunday Oge Elom
Environmental Biochemistry,
Health and Toxicology Research Unit, Department of Medical Biochemistry,
Federal University Ndufu-Alike Ikwo, Nigeria.
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