Pollution of the environment, particularly the soil, appears to be one of the major contemporary issues. In addition, many studies point to the involvement of ecological risk of heavy metals into the food chain throug...Pollution of the environment, particularly the soil, appears to be one of the major contemporary issues. In addition, many studies point to the involvement of ecological risk of heavy metals into the food chain through edible plants like Spinaceae oleraceae L. and Lactuca sativa L.. This paper presents the results of the ＂ex-situ＂ application of phytoacumulation on the soils of contaminated terrain using the plant species of spinach （Spinacea oleracea L.） and lettuce （Lactuca sativa L.）. Sequestration of arsen from the soil by these plant species was observed through phytoaccumulation factor--PF and limit values （mg/kg）. The main task and objective of this research was to establish the level of accumulation of toxic element As from the soil by plants and to calculate the PF factor of transfer. The experiment was set up in the control conditions where the soil from eight contaminated locations was placed in the experimental containers. The AAS method was used to analyze heavy metal in plant material and soil. PF factor values ranged from 0.1 to 1.0 which indicates that the spinach and lettuce plants rechargeable moderate compared to arsenic.展开更多
文摘Pollution of the environment, particularly the soil, appears to be one of the major contemporary issues. In addition, many studies point to the involvement of ecological risk of heavy metals into the food chain through edible plants like Spinaceae oleraceae L. and Lactuca sativa L.. This paper presents the results of the ＂ex-situ＂ application of phytoacumulation on the soils of contaminated terrain using the plant species of spinach （Spinacea oleracea L.） and lettuce （Lactuca sativa L.）. Sequestration of arsen from the soil by these plant species was observed through phytoaccumulation factor--PF and limit values （mg/kg）. The main task and objective of this research was to establish the level of accumulation of toxic element As from the soil by plants and to calculate the PF factor of transfer. The experiment was set up in the control conditions where the soil from eight contaminated locations was placed in the experimental containers. The AAS method was used to analyze heavy metal in plant material and soil. PF factor values ranged from 0.1 to 1.0 which indicates that the spinach and lettuce plants rechargeable moderate compared to arsenic.
