12. Inorganic metal contaminants Organic contaminants Radioactive contaminants Brake fern Poplar tree Indian mustard Oil spill Groundwater Soil Polluted groundwater in Polluted leachate Decontaminated water out Landfill Willow tree Phytoextraction Roots of plants can absorb toxic metals such as lead, arsenic, and others and store them in their leaves. Plants can then be recycled or harvested and incinerated. Phytodegradation Plants can absorb toxic organic chemicals and break them down into less harmful compounds which are stored or released into the air. Phytostabilization Plants can absorb chemicals and keep them from reaching groundwater or nearby surface water. Rhizofiltration Roots of plants with dangling roots can absorb pollutants such as radioactive strontium-90 and cesium-137 and various organic chemicals. Sunflower Groundwater Soil
In the other hands, if you don’t have a good barrier to control the tide of sub-standard e-products or e-wastes. Sooner or later, your country will become a dump site of such sub-standard e-products or e-wastes as Thailand have ever faced.