The present work evaluated the lead absorption capacity of three vegetative species: Amaranth Hybridus (amaranth), Beta Vulgaris (chard) and Medicago sativa (alfalfa); the three species were germinated in seedbeds, using black soil and mixed soil, and replanted in artificially contaminated soils with concentrations of 2.5, 5 and 10%, in order to determine the amount of lead absorbed at different times. The evolution of lead absorption in the different vegetative species was measured using the acid digestion technique and quantified in an atomic absorption spectrophotometer at 0, 20, 30, 30, 45, 60 and 90 days of exposure. Lead uptake was directly influenced by the biomass generated. Amaranth showed detoxification stages, while alfalfa and chard showed continuous absorption. This factor involves a potential problem in food safety since it retains the contaminant in the vegetative structure, causing contamination of animals and humans due to direct consumption in juices or precooked foods.
|Translated title of the contribution||Absorption of Lead from Highly Contaminated Soils in Vegetative Species Used for Animal and Human Consumption|
|Original language||Spanish (Ecuador)|
|Number of pages||12|
|State||Published - 1 Jun 2016|
- Food contamination
CACES Knowledge Areas
- 118A Agricultural and livestock production