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Spatial Distribution of Minor Elements in the Tazlău River Sediments: Source Identification and Evaluation of Ecological Risk

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  • Andreea E. Maftei

    (Department of Research, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, 20A Carol I Blv., 700505 Iasi, Romania)

  • Andrei Buzatu

    (Department of Geology, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, 20A Carol I Blv., 700505 Iasi, Romania)

  • Nicolae Buzgar

    (Department of Geology, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, 20A Carol I Blv., 700505 Iasi, Romania)

  • Andrei I. Apopei

    (Department of Geology, Faculty of Geography and Geology, “Alexandru Ioan Cuza” University of Iasi, 20A Carol I Blv., 700505 Iasi, Romania)

Abstract

Minor elements received more attention in recent years due to their contamination susceptibility and environmental impact. Surface sediment samples were collected from 29 sites and total contents of eight minor elements (Cr, Co, Ni, Cu, Zn, As, Cd, and Pb) were investigated in order to determine the geostatistical distribution and to predict ecological implications. The relationship between metals and ecological implications was analyzed by using the geochemical normalization approach and ecological prediction indicators such as the enrichment factor (EF), the contamination degree (CD), the environmental toxicity quotient (ETQ), and the health risk assessment. Based on the studied toxic metals, it was observed that the most toxic element in Tazlău River sediments is Cr. The assessment results of carcinogenic and non-carcinogenic risks via dermal contact indicate that the study area shows no human health risk. The correlation matrix and principal component analysis (PCA) provide an overview of the major sources, anthropogenic versus geogenic, where Cr and Cd mainly originate from anthropogenic sources, while Pb is derived from a geogenic source. The approaches used in this study will provide a baseline regarding the accumulation of minor elements in the sediment and will be useful for other studies to easily identify the major contaminates and to estimate the health human risk.

Suggested Citation

  • Andreea E. Maftei & Andrei Buzatu & Nicolae Buzgar & Andrei I. Apopei, 2019. "Spatial Distribution of Minor Elements in the Tazlău River Sediments: Source Identification and Evaluation of Ecological Risk," IJERPH, MDPI, vol. 16(23), pages 1-16, November.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:23:p:4664-:d:290088
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    References listed on IDEAS

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    1. Fang Shen & Longjiang Mao & Runxia Sun & Jijing Du & Zhihai Tan & Min Ding, 2019. "Contamination Evaluation and Source Identification of Heavy Metals in the Sediments from the Lishui River Watershed, Southern China," IJERPH, MDPI, vol. 16(3), pages 1-14, January.
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    Cited by:

    1. Iolanda-Veronica Ganea & Ramona Bălc & Robert-Csaba Begy & Ioan Tanțău & Delia Maria Gligor, 2023. "Combining Contamination Indices and Multivariate Statistical Analysis for Metal Pollution Evaluation during the Last Century in Lacustrine Sediments of Lacu Sărat Lake, Romania," IJERPH, MDPI, vol. 20(2), pages 1-17, January.

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