Improvement of Arsenic Phytoextraction Using Indigenous Bacteria and Mobilizing Agents

Among inorganic contaminants, arsenic (As) is known for its toxicity and the risks to environment human health that could derive from presence. Phytoremediation represents an effective strategy removal of contaminated soil, provided suitable plant species adequate operational plans are exploited. With reference a disused area located in Southern Italy which was subject previous study, this work, new strategies were investigated further improve effectiveness phytoremediation plan arsenic. The usefulness Cannabis sativa (hemp) Zea mays (corn) evaluated work by microcosm (300 g mixed soil per test) mesocosm (4 kg + 1 inert gravel experiments. addition arsenic-tolerant bacteria isolated rhizosphere native herbaceous grown employed promote growth, while different mixtures mobilizing agents tested bioavailability. After combined treatment, content aerial parts plants increased about 10 times case corn (from 1.23 10.41 mg kg−1) 8 hemp 1.05 8.12 kg−1).