Direct test methods for hazard classification of waste

Coordinated by Alberto Pivato, University of Padova

Correct hazard classification of waste is crucial to provide sustainable and lawful management plans, from transport to final disposal. Especially in the case of waste classified as “mirror entry” in the European List of Waste, the choice of the specific assessment tool or method is a key step to ensure the transparency and reliability of the process.
Directive 2008/98/EC defines waste as hazardous if characterized by at least one of the 15 hazardous properties (HPs).

The assessment of the specific HP can be based on the measured content of potentially hazardous substances or on the result of a test of a given property. Here, a tiered assessment is recommended:

- 1st tier: Waste should be classified according to the European List of Waste (LoW) as “hazardous”, “non-hazardous”, or as “mirror entry”. In this latter case:

- 2nd tier: Some HPs can be assessed as through the so-called expert judgment;

- 3rd tier: The remaining HP can be assessed according to the total concentration of specific waste constituents under a “worst realistic case” hypothesis.

- 4th tier: If the “worst realistic case” approach leads to unsatisfactory or unrealistic results, a 4th tier can be performed by carrying out direct analytical methods, specifically developed for the target HP.

In this context, the session will discuss the current drawbacks and challenges posed by the current direct test procedures implemented in the 4th tier. In particular, the following Hazard Properties will be debated, being identified as the most discriminating or controversial ones: HP 4 Irritant; HP 8 Corrosive; HP 10 Toxic for reproduction; HP 14 ecotoxic.

Authors interested in sending their proposal for a presentation on this topic can submit their paper (either short or full) by 2nd October using the online submission form.

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