Resumen

ZENDER PENA, Valeria et al. Presence of heavy metals in soils of the Ica River bed during the dry season. Rev. Inv. Cs. Agro. y Vet. [online]. 2025, vol.9, n.26, pp.450-464.  Epub 05-Mayo-2025. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v9i26.358.

Heavy metal pollution in riverbeds is serious due to its toxicity, persistence, and bioaccumulation, affecting ecosystems, human health, and causing irreversible damage. Therefore, the objective of this research was to determine the level of soil contamination caused by the presence of unwanted waste located in the Ica River bed during the dry season. The research was conducted using a quantitative approach, with a descriptive scope, observational, prospective, and cross-sectional design. Soil monitoring was carried out at four designated points (P-01, P-02, P-03, P-04). Samples were collected from an area of 23 meters wide by 30 meters long at each sampling point. The analyzed heavy metals recorded average concentrations significantly below regulatory limits. Arsenic showed an average of 2.235 mg/kg, equivalent to 1.6% of the permitted standard (140 mg/kg). Barium reached 160.075 mg/kg, only 8% of its limit (2000 mg/kg). Lead averaged 226.125 mg/kg (28.3% of the 800 mg/kg threshold). Finally, chromium remained at 3.895 mg/kg (0.39% of the 1000 mg/kg standard). Heavy metal analyses revealed detectable concentrations of arsenic, barium, lead, and chromium, most of which did not exceed the Environmental Quality Standard (EQS) limits. These results indicated a controlled presence of pollutants, with no immediate risks.

Palabras clave : Soil contamination; Unwanted waste; Heavy metals; Human health; Environmental education.

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