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Table 9: PCDD and PCDF mass emissions per tonne of metal, by metal type

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Metal type

Number of samples

Mass PCDD and PCDF per tonne of metal (&#956g 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.