2022
DOI: 10.21203/rs.3.rs-2005906/v1
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Bioavailability of heavy metals in surface sediment of Anzali International Wetland, Iran

Abstract: The study aimed to determine the metal concentration, mobility, bioavailability, ecological risk, and toxicity in the surface sediment of Anzali International Wetland. Pb, As, Cd, Cr, Ni, Zn, and Fe Concentrations in 33 samples are reported here. A five-step sequential extraction technique was used to determine the chemical forms of metals. To assess ecological risk (Er), Risk Index (RI), Toxic Unit (TU), the sum of Toxic Units (ΣTUs), Toxic Risk Index (TRI), and modified Hazard Quotients (mHQ) were calculated… Show more

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