|
The burning issue of today,s environment problem is the release of toxic contaminants from various man made sources resulting in contamination of natural resources of earth and leading to scarcity of clean water and loss of soil fertility. To overcome these drawbacks,the concept of using plant to clean up contaminated environment is not new. about 300 years ago, plants were proposed for use in the treatment of waste water.land and water pollution by heavy metals is a world wide issue. therefore has been an increasing concern with regard to accumulation of heavy metals in environment as they pose big threat to both human health and natural environment. in central and eastern european countries about 1.7 million sites were contaminated with heavy metals and need reclamation. in developing countries particularly india, china, pakistan, bangladesh, soil and water pollution is also severe where small industrial units are pouring their untreated effluents over near agricultural fields.the use of plants species for cleaning polluted soils and water named as phytoremediation has gained increasing attention since last decade, as an emerging cheaper technology. This article reviewed the status of phytoremediation in global prospects.
|
.jpg)
