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Fractionation, Bioaccessibility, and Risk Assessment of Heavy Metals in the Soil of an Urban Recreational Area Amended with Composted Sewage Sludge

Author

Listed:
  • Kai Yang

    (Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China)

  • Tao Zhang

    (Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
    College of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, China)

  • Yanqiu Shao

    (Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China)

  • Chao Tian

    (Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China)

  • Stephen R. Cattle

    (Sydney Institute of Agriculture, School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Eveleigh, NSW 2015, Australia)

  • Ying Zhu

    (Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China)

  • Jinjuan Song

    (Quality, Safety and Environmental Protection Department, China International Water and Electric Corporation, Beijing 100120, China)

Abstract

A composted sewage sludge (CSS) was added to the soil of an urban garden at 5%, 10%, and 25% ( w / w soil) and stabilised for 180 days. Samples were then collected and analysed for total heavy metal concentrations, chemical fractions, and bioaccessibility, together with some physicochemical properties. The results showed that the total chromium (Cr), copper (Cu), lead (Pb), and zinc (Zn) concentrations were increased with CSS addition rate. The CSS addition decreased the residual fractions of these four elements. The exchangeable Cr, Cu, and Pb fractions were very small or not detected, while Zn exhibited an increasing trend in its exchangeable fraction with CSS addition rate. The bioaccessibility of these four elements was increased with the CSS addition rate. Moreover, the Cr, Cu, and Zn bioaccessibility correlated positively with the total concentration, while the bioaccessibility of these four elements exhibited a negative correlation with the residual fraction. The fractionation and bioaccessibility of heavy metals may have also been influenced by pH, cation exchange capacity, and organic matter. The risk assessment code reflected the amended soil showed no or low environmental risks for Cr, Cu, and Pb and a medium risk for Zn. The hazardous index values and cancer risk levels indicated that the heavy metals in the soil amended with 25% CSS posed negligible potential noncarcinogenic and carcinogenic risks to children and adults via incidental ingestion.

Suggested Citation

  • Kai Yang & Tao Zhang & Yanqiu Shao & Chao Tian & Stephen R. Cattle & Ying Zhu & Jinjuan Song, 2018. "Fractionation, Bioaccessibility, and Risk Assessment of Heavy Metals in the Soil of an Urban Recreational Area Amended with Composted Sewage Sludge," IJERPH, MDPI, vol. 15(4), pages 1-15, March.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:4:p:613-:d:138384
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    Citations

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    Cited by:

    1. Yanqiu Shao & Kai Yang & Rongchang Jia & Chao Tian & Ying Zhu, 2018. "Degradation of Triclosan and Carbamazepine in Two Agricultural and Garden Soils with Different Textures Amended with Composted Sewage Sludge," IJERPH, MDPI, vol. 15(11), pages 1-14, November.
    2. Marion Porcherie & Nyan Linn & Anne Roué Le Gall & Marie-Florence Thomas & Emmanuelle Faure & Stéphane Rican & Jean Simos & Nicola Cantoreggi & Zoé Vaillant & Linda Cambon & Jean-Philippe Regnaux, 2021. "Relationship between Urban Green Spaces and Cancer: A Scoping Review," IJERPH, MDPI, vol. 18(4), pages 1-19, February.
    3. Enzo Antonio Lecciolle Paganini & Rafael Barroca Silva & Ludmila Ribeiro Roder & Iraê Amaral Guerrini & Gian Franco Capra & Eleonora Grilli & Antonio Ganga, 2024. "A Systematic Review and Meta-Analysis of the Sustainable Impact of Sewage Sludge Application on Soil Organic Matter and Nutrient Content," Sustainability, MDPI, vol. 16(22), pages 1-16, November.
    4. Yujie Pan & Hongxia Peng & Shuyun Xie & Min Zeng & Changsheng Huang, 2019. "Eight Elements in Soils from a Typical Light Industrial City, China: Spatial Distribution, Ecological Assessment, and the Source Apportionment," IJERPH, MDPI, vol. 16(14), pages 1-17, July.
    5. Jorge Paz-Ferreiro & Gabriel Gascó & Ana Méndez & Suzie M. Reichman, 2018. "Soil Pollution and Remediation," IJERPH, MDPI, vol. 15(8), pages 1-3, August.

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