Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:20:p3
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 20 (pt 3/3)
Character Range: 1345736–1347057

can be used to derive SQGs for a variety of different land uses and purposes
    * considers bioavailability and can therefore derive soil-specific EILs if the necessary data is available for the contaminant to ensure a uniform protection level for different types of soils
    * considers ageing and leaching for aged soil contamination
    * accounts for the ambient background concentration issue
    * is consistent and incorporates the most recent advances in risk assessment, terrestrial toxicity and soil chemistry
    * is consistent with the Australian and NZ water quality guidelines.

2.4.13.2     Limitations
The EIL derivation methodology:
    * does not incorporate the different sources and types of contamination, and the bioavailability of different sources of contamination
    * is relatively complex and will require researchers with expertise to derive reliable EILs
    * uses a secondary poisoning method that is not optimal and may require improving in the future. The methodology does not use complex secondary poisoning models due to a serious lack of data necessary for these models, especially a lack of Australian data. If, in the future, the data is available, it is recommended that these types of models for EIL derivation be considered for contaminants showing biomagnification potential.