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Information Journal Paper

Title

Ecological risk assessment of heavy metals in landfill soil of Tehran and its adjacent residential area

Pages

  621-638

Abstract

 Background and Objective: Landfills as municipal solid waste are considered as the source of pollution. The present study aimed to assess the Ecological risk of Heavy metals in Tehran landfill soil and the adjacent residential area. Materials and Methods: Having consulted with the specialists and considered the waste processing facilities, 12 sampling points were selected and sampled in four seasons. Soil samples were digested using HNO3: HClO4: HCl: HF. The levels of metals were measured using ICP-OES which further applied for the calculation of Ecological risk. Kolmogorov-Smirnov, Kruskal-Wallis, and Pearson correlation coefficient analyses were run to determine the significant differences between metals concentrations in various seasons and sampling points. Results: Metal concentration showed to follow theorder: Al > Fe > Mn > Zn > Cr > Pb > Cu >Ni > Co > As > Cd. Kruskal-Wallis results and pairwise comparison showed a statistically significant difference between metal concentrations across sampling points and seasons, especially in rainy seasons. Pearson correlation coefficient displayed a strong relationship between the mean concentrations of Cu-Pb, Cu-Zn, and Pb-Zn with obtained values of 0. 932, 0. 874, and 0. 883, respectively. Cu exhibited the highest contamination factor at the compost and fermentation sites (13. 2 and 9. 89, respectively). The geo-accumulation index proved the anthropogenic sources of pollution. The potential Ecological risk index (ERI) for the sampling sites ranged from 67. 3 to 154, with the order of Cd > Cu > Pb > Ni > As > Cr > Zn > Co > Mn. Conclusion: Due to the obtained moderate to severe Ecological risk and exceeded background concentrations of Heavy metals, it can be concluded that metal changes and Soil pollution are both affected by landfill activities.

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    Cite

    APA: Copy

    Karimian, Shahla, Shekoohiyan, Sakine, & MOUSSAVI, GHOLAMREZA. (2021). Ecological risk assessment of heavy metals in landfill soil of Tehran and its adjacent residential area. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 13(4 ), 621-638. SID. https://sid.ir/paper/416182/en

    Vancouver: Copy

    Karimian Shahla, Shekoohiyan Sakine, MOUSSAVI GHOLAMREZA. Ecological risk assessment of heavy metals in landfill soil of Tehran and its adjacent residential area. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2021;13(4 ):621-638. Available from: https://sid.ir/paper/416182/en

    IEEE: Copy

    Shahla Karimian, Sakine Shekoohiyan, and GHOLAMREZA MOUSSAVI, “Ecological risk assessment of heavy metals in landfill soil of Tehran and its adjacent residential area,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 13, no. 4 , pp. 621–638, 2021, [Online]. Available: https://sid.ir/paper/416182/en

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