Assessment of toxic metal contamination, distribution and risk in the sediments from lagoons used for fish farming in the central region of Peru

Autor: María Custodio, Ciro Espinoza, Edith Orellana, Fernán Chanamé, Anthony Fow, Richard Peñaloza
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Toxicology Reports, Vol 9, Iss , Pp 1603-1613 (2022)
Druh dokumentu: article
ISSN: 2214-7500
DOI: 10.1016/j.toxrep.2022.07.016
Popis: Toxic metal contamination, distribution and risk were evaluated in the sediments of three lagoons used for fish farming in the central region of Peru. The distribution of toxic metals in the sediment was in the following descending order of Zn > V > Ni > Cu > Pb > As > Cr > Co > Cd > Sb. Contamination factor (Cf) and geoaccumulation index (Igeo) values for Co, Cr, Cu, Ni, Pb, Sb, V and Zn indicated low contamination and for Cd moderate contamination. The pollution load index (PLI) ranged from 0.3856 to 0.5622; indicating no appreciable contamination and the modified degree of contamination (mCd) corroborated this result. The potential ecological risk (Ri) in the Tranca Grande and Pomacocha lagoons revealed a low potential ecological risk and in Tipicocha a moderate potential ecological risk. HI values
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