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    Application of phytotoxicity data to a new Australian soil quality guideline framework for biosolids.

    117961_Application%20of%20phytotoxicity%20dataDeliveryManager.pdf (220.0Kb)
    Access Status
    Open access
    Authors
    Heemsbergen, D.
    Warne, M.
    Broos, K
    Bell, M.
    Nash, D.
    McLaughlin, M.
    Whatmuff, M.
    Barry, G.
    Pritchard, Deborah
    Penney, N.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Heemsbergen, Diane and Warne, Michael and Broos, K. and Bell, Mike and Nash, David and McLaughlin, Michael and Whatmuff, Mark and Barry, Glenn and Pritchard, Deborah and Penney, Nancy. 2009. Application of phytotoxicity data to a new Australian soil quality guideline framework for biosolids. Science of the Total Environment 407 (8): pp. 2546-2556.
    Source Title
    Science of the Total Environment
    DOI
    10.1016/j.scitotenv.2009.01.016
    ISSN
    00489697
    Faculty
    Department of Applied Chemistry
    Science and Engineering
    School
    Muresk Institute
    Remarks

    Copyright © 2009 Elsevier B.V. All rights reserved

    The link to the journal's home page is: http://www.sciencedirect.com/science/journal/00489697

    URI
    http://hdl.handle.net/20.500.11937/10028
    Collection
    • Curtin Research Publications
    Abstract

    To protect terrestrial ecosystems and humans from contaminants many countries and jurisdictions have developed soil quality guidelines (SQGs). This study proposes a new framework to derive SQGs and guidelines for amended soils and uses a case study based on phytotoxicity data of copper (Cu) and zinc (Zn) from field studies to illustrate how the framework could be applied. The proposed framework uses normalisation relationships to account for the effects of soil properties on toxicity data followed by a species sensitivity distribution (SSD) method to calculate a soil added contaminant limit (soil ACL) for a standard soil. The normalisation equations are then used to calculate soil ACLs for other soils. A soil amendment availability factor (SAAF) is then calculated as the toxicity and bioavailability of pure contaminants and contaminants in amendments can be different. The SAAF is used to modify soil ACLs to ACLs for amended soils. The framework was then used to calculate soil ACLs for copper (Cu) and zinc (Zn). For soils with pH of 4-8 and OC content of 1-6%, the ACLs range from 8 mg/kg to 970 mg/kg added Cu. The SAAF for Cu was pH dependant and varied from 1.44 at pH 4 to 2.15 at pH 8. For soils with pH of 4-8 and OC content of 1-6%, the ACLs for amended soils range from 11 mg/kg to 2080 mg/kg added Cu. For soils with pH of 4?8 and a CEC from 5-60, the ACLs for Zn ranged from 21 to 1470 mg/kg added Zn. A SAAF of one was used for Zn as it concentrations in plant tissue and soil to water partitioning showed no difference between biosolids and soluble Zn salt treatments, indicating that Zn from biosolids and Zn salts are equally bioavailable to plants.

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