Phytoremediation

                          Phytoremediation

Toxic metals and explosives are also a major environmental hazard since they are a source of pollution in water and soil. Toxic metals can be classified into two groups the heavy metals and radionuclides.

The primary sources of this pollution are the burning fossil fuels, mining and melting of metaliferrous ores, municipal waste, fertilizers, pesticides and sewage.

Naturally occurring plants for phytoremediation 

Excessive levels of above metals that occur in contaminated soils are generally toxic to most plant species.

Method of phytoremediation can be classified into four technologies-

                     1. Phytoextraction

                      2. Rhizofiltration

                        3. Phytodegradation

                           4. Phytostabilisation 

Transgenic plants for phytoremediation

Transgenic plants have also been produced for detoxification of soils contaminated with metals like mercury aluminium arsenic.    These transgenic plants can be grown in contaminated soils to allow detoxification of these contaminated soils 

thanks for visiting ALL SCIENCESS