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Risk Assessment of Heavy Metals in Surface Sediments from the Yanghe River, China

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  • Jing Li

    (Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

Abstract

The magnitude and ecological relevance of metal pollution from the upstream of water sources after emergency pollution events was investigated by applying a set of complementary sediment quality assessment methods: (1) geochemical assessment based on background value (the geoaccumulation index); (2) comparisons with sediment quality guidelines (SQGs); (3) an evaluation of the combined pollution according to the risk index (RI); and (4) investigation of the chemical patterns of target heavy metals (Cd, Zn, Cr, Pb, Ni). The geoaccumulation indices ( I geo ) suggested that the magnitude of heavy metal pollution of the sediment of Yanghe River decreased in the order of Cd > Zn > Pb > Cr > Ni. Risk analysis also suggested that Cd and Zn concentrations were sufficiently elevated as to cause adverse biological effects in this study area. According to the RI values, 27% of total sampling sites showed considerable ecological risk for the water body, and 53% of total sampling sites showed very high ecological risk for the waterbody. Sediment-bound Cd was found to be predominantly associated with the exchangeable phase of the sediment (25%–68%), while Cr, Ni, Zn and Pb showed the strongest association with the residual fractions (60%–92%, 53%–67%, 24%–85% and 35%–67%, respectively).

Suggested Citation

  • Jing Li, 2014. "Risk Assessment of Heavy Metals in Surface Sediments from the Yanghe River, China," IJERPH, MDPI, vol. 11(12), pages 1-13, November.
    • Handle: RePEc:gam:jijerp:v:11:y:2014:i:12:p:12441-12453:d:42895
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    References listed on IDEAS

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    1. Urbain Fifi & Thierry Winiarski & Evens Emmanuel, 2013. "Assessing the Mobility of Lead, Copper and Cadmium in a Calcareous Soil of Port-au-Prince, Haiti," IJERPH, MDPI, vol. 10(11), pages 1-14, November.
    2. Yang Guan & Chaofeng Shao & Meiting Ju, 2014. "Heavy Metal Contamination Assessment and Partition for Industrial and Mining Gathering Areas," IJERPH, MDPI, vol. 11(7), pages 1-18, July.
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    Cited by:

    1. Kiri J. Rodgers & Andrew Hursthouse & Simon Cuthbert, 2015. "The Potential of Sequential Extraction in the Characterisation and Management of Wastes from Steel Processing: A Prospective Review," IJERPH, MDPI, vol. 12(9), pages 1-32, September.
    2. Elżbieta Skorbiłowicz & Mirosław Skorbiłowicz & Urszula Tarasiuk & Magdalena Korzińska, 2021. "Cadmium, Chromium, and Cobalt in the Organs of Glyceria maxima and Bottom Sediments of the Pisa River and Its Tributaries (Poland)," IJERPH, MDPI, vol. 18(19), pages 1-18, September.
    3. Sisira S. Withanachchi & Giorgi Ghambashidze & Ilia Kunchulia & Teo Urushadze & Angelika Ploeger, 2018. "Water Quality in Surface Water: A Preliminary Assessment of Heavy Metal Contamination of the Mashavera River, Georgia," IJERPH, MDPI, vol. 15(4), pages 1-25, March.

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