● stabilization: the plant converts the contaminant into a form which is not bioavailable, or the plant prevents the spreading of a contaminant plume (UNEP, 2003). Phytoremediation appears to be a ‘natural technology’, i.e., relatively simple. There are, however, some important factors that should be observed carefully in order to achieve the expected results and avoid disappointments:
● plant species used for phytoremediation should be selected appropriately
● indigenous species locally adapted and resistant to the substances polluting the soil should be given preference
● optimally, the plant should not require special care but should be tolerant to natural variability of weather conditions and capable of adapting to the characteristics of the remediated aquatic habitat (e.g., flow and hydroperiod).