Assessment of native plant species for phytoremediation of heavy metals growing in the vicinity of NTPC sites, Kahalgaon, India.

The present investigation was carried out to screen native plants growing in fly ash (FA) contaminated areas near National Thermal Power Corporation (NTPC), Kahalgaon, Bihar, India with a view to using them for the eco-restoration of the area. A total number of 30 plant species (5 aquatic and 25 terrestrial including 6 ferns) were collected and their diversity status and dominance were also studied. After screening of dominant species at highly polluted site, 8 terrestrial and 5 aquatic plants were analyzed for heavy metals (Fe, Zn, Cu, Ni, Si, Al, Pb, Cr, and Cd).

Bioconcentration and phytotoxicity of chromium in Eichhornia crassipes.

Physico-chemical parameter and metal concentration in effluents of two industries i.e. Tannery industry, Jajmau, Kanpur and Electroplating industry, Scooter India Limited (SIL), Lucknow were determined to assess the toxicity of chromium.

Impacts of fly-ash on soil and plant responses.

Coal combustion produces carbon dioxides, SO x, NO x and a variety of byproducts, including fly-ash, flue gas and scrubber sludge. Fly-ash consists of minute glass-like particles and its deposition on leaves inhibits the normal transpiration and photosynthesis of plants. Fly-ash also affects the physicochemical characteristics of soil because it is generally very basic, rich in various essential and non-essential elements, but poor in both nitrogen and available phosphorus.