BIOTERRORISM IS A DANGEROUS TO ENVIRONMENT- A REVIEW
Phytoremediation is a group of technologies that use plants to reduce, remove, degrade, or immobilize environmental toxins, primarily those of anthropogenic origin with the aim of restoring area sites to a condition useable for private or public applications. Phytoremediation efforts have largely focused on the use of plants to accelerate degradation of organic contaminants, usually in concert with root rhizosphere microorganisms, or remove hazardous heavy metals from soils or water. Phyto-remediation of contaminated sites is a relatively inexpensive and aesthetically pleasing to the public compared to alternate remediation strategies involving excavation/removal or chemical in situ stabilization/conversion. Seven aspects of phytoremediation are described in this chapter: phyto-extraction, phyto-degradation, rhizosphere degradation, rhizofiltration, phytostabilization, phytovolatization, and phytorestoration. Combining technologies offer the greatest potential to efficiently phytoremediate contaminated sites (soil and water). The major focus of this study is phytoextraction of arsenic, cadmium, chromium, copper, mercury, nickel, lead, selenium, and zinc. Scientists should place emphasis on their ethical responsibility for sustainable food production and environmental security since otherwise, bioterrorism could become a major threat to human and environmental security in the near future.
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