Restoration of Metal(loid) Contaminated Soil: Investigating the Potential Use of Microbes and Soil Amendments to Improve Outcomes

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Mining and smelting operations worldwide have left a nontrivial biogeochemical legacy of metal(loid)-contaminated soils. As a result, polluted soil and groundwater detrimentally impact flora and fauna, and negatively affect human health. Arsenic (As) alone affects 137 million people across 70 countries, and is toxic to many plant species at relatively low concentrations. Bioremediation has recently emerged as a potential tool to address the interrelated impacts to humans and vegetation from metal(loid) contaminated soil. The coupling of microbially-mediated soil remediation with phytoremediation is gaining traction as a promising tactic for promoting soil health and plant growth in the presence of a variety of pollutants, including As.

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