| Metal type | Number of samples | Mass PCDD and PCDF per tonne of metal (μg I-TEQ tonne-1)a | ||||
|---|---|---|---|---|---|---|
| Lowest | Highest | Average | Geometric mean | Median | ||
| Ferrous | 11 | 0.0058 | 89 | 8.2 | 0.10 | 0.045 |
| Copper and otherb | 5 | 0.0053 | 17 | 3.5 | 0.13 | 0.16 |
| Aluminiumb | 8 | 0.0027 | 17 | 2.9 | 0.15 | 0.13 |
| All non-ferrous | 12 | 0.0027 | 17 | 1.9 | 0.096 | 0.11 |
a Values include half the LODs.
b Includes sample S12, where both aluminium and copper were being melted.
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Table 9: PCDD and PCDF mass emissions per tonne of metal, by metal type
March 2021
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