The document discusses using phytoremediation to reduce pollution. Phytoremediation uses living plants to clean up contaminated soil, air, and water. It has advantages like increasing soil health, reducing erosion and metal leaching, and improving fertility. Specific phytoremediation processes discussed include phytoextraction, where plants remove contaminants from soil or water; phytovolatilization, where contaminants taken up by plants evaporate into the air; phytostabilization, where plants immobilize pollutants in soil; phytostimulation, where plants enhance microbial degradation of organic contaminants; phytodegradation, where plant enzymes degrade organic pollutants; and rhizofiltration, where

1. Reduction of Pollution by ‘Plantation’
Represented by – Sudhir kannaujiya (JRF)
Msc. Environmental science(BHU)
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2. Air pollution
Water pollution
Noise pollution
Soil pollution
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3. PHYTOREMEDIATION
 Use living plants to clean up soil, air and water contaminated with
hazardous contaminants.
 Ability of plant to concentrate elements and compounds from the
environment and to detoxify various compounds.
 Cost of phytoremediation is lower than of Traditional processes.
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4. Advantages
 Increase soil health.
 Reduce erosion and leaching of metal in soil.
 Increase fertility of soil.
 Water purification.
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5. 1.Phytoextraction
 Ability of plants to remove contaminants from
soil or water into harvestable plant biomass.
 Examples-
Pollutant Plant Use
Arsenic Sunflower
Cadmium Salix
Lead Indian Mustard
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7. 2.Phytovolatization
Removal of substances from soil or water with release
into air.
Contaminates are taken up by the plant through
transpiration, evaporate into atmosphere.
Volatization occurs at the stem and leaves of the plants.
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8. 3.Phytostabilization
 Plant immobilizes the pollutants by binding them to soil
particles making them less available for plant of human uptake.
 The reduction of the mobility of heavy metals in soil.
 Converting heavy metal pollutant into a less toxic form.
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9. 4.Phytostimulation
 Plant release carbohydrates and acids that stimulate micro-
organism acidity which results in the biodegradation of the
organic contaminants.
 Process occurs within rhizosphere.
 Enhancement of soil microbial activity for the degradation of
organic contaminants.
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10. 5.Phytodegration
 Is the degradation of the organic pollutants by plants with the
help of enzymes such as dehalogenase and oxygenase.
 Root secrete enzymes that degrade organic pollutants in soil.
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11. 6.Rhizofiltration
Process that filters water through a mass of roots
to remove toxic substances or excess nutrients.
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