Registration Dossier

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Hazard to aquatic environment: Acute chronic Category 1 H410

The classification derived is applicable to all Sulphuric acid, waste gas washing and cooling, copper smelting.   

The tested sample is representative for a worst case (max across industry), defined within the concentration ranges outlined under IUCLID section 1.2

Self-classification of the UVCB substance (IUCLID Section 2.1 & 2.2) was performed based on below outline:

1. Characterization

The material is accurately described from their elemental composition (typical concentrations and concentration ranges across production sites –IUCLID Section 1.2), and the specific speciation data (chemical information) obtained from a representative sample (IUCLID Section 4, in particular 4.23). This information is enough to initiate the classification process.

2. Classification by the Mixture Approach

The UVCB is treated as a complex metal containing substance with a number of discrete constituting compounds (metals, metal compounds, non-metal inorganic compounds). The hazard classifications of each compound are then factored into a combined classification of the UVCB as a whole. For health endpoints, UVCB classifications are based on the combined hazards of the compounds whereby additivity or key cut off levels, specified in look-up tables are used, depending on the endpoint and amount of information available for the constituting compounds. For environmental endpoints, additivity and/or summation algorithms are applied to quantitatively estimate the mixture’s toxicity to aquatic organisms. These concepts and rules are incorporated in easy to use IT tools, which can be used to classify the UVCB.

3. Bridging or Read-Across

(Eco)-toxicological data are not available for the specific UVCBs being evaluated. Considering the knowledge and variability in composition, read-across and bridging is done by using  a "representative" mineralogical/speciation analysis"  combined with the  "worst case" metal concentration (across companies)  as a basis for the classification of the UVCB substance (chemical and mineralogical surrogates with similar origin/production process and physical/chemical properties –see IUCLID 1.4 for information on Sampling procedure).

4. Eventual correction

No correction for (bio)availability was made  

See furthermore attached documents: Arche CLP tool version June 2010 Incorporated to tool (or attached): how elemental composition is translated into Mineralogical composition relevant for classification (i.e. “ input sheets”)