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3222323 
Journal Article 
Remediation of heavy metal contaminated ecosystem: an overview on technology advancement 
Singh, A; Prasad, SM 
2015 
Yes 
International Journal of Environmental Science and Technology
ISSN: 1735-1472
EISSN: 1735-2630 
12 
1 
353-366 
WOS:000347455100032 
The issue of heavy metal pollution is very much concerned
because of their toxicity for plant, animal and human beings and their lack of biodegradability.
Excess concentrations of heavy metals have adverse effects on plant metabolic activities hence
affect the food production, quantitatively and qualitatively. Heavy metal when reaches human
tissues through various absorption pathways such as direct ingestion, dermal contact, diet
through the soil-food chain, inhalation and oral intake may seriously affect their health.
Therefore, several management practices are being applied to minimize metal toxicity by
attenuating the availability of metal to the plants. Some of the traditional methods are either
extremely costly or they are simply applied to isolate contaminated site. The biology-based
technology like use of hypermetal accumulator plants occurring naturally or created by transgenic
technology, in recent years draws great attention to remediate heavy metal contamination.
Recently, applications of nanoparticle for metal remediation are also attracting great research
interest due to their exceptional adsorption and mechanical properties and unique electrical
property, highly chemical stability, and large specific surface area. Thus, the present review
deals with different management approaches to reduce level of metal contamination in soil and
finally to the food chain. 
Heavy metal; Toxicity; Remediation; Nanotechnology