Table 18: Updated PCDD and PCDF estimates for the secondary metals sector, 20002/03
Return to the point in the document where this table is located.
|
Metal production sector |
Basis of production estimate |
Annual production |
Measured range |
Geometric mean a |
Emission range |
|---|---|---|---|---|---|
|
Secondary steel |
One large plant in Auckland (as per 1998 inventory) |
170,000 |
0.098 - 0.37b |
NA |
0.017 - 0.063 |
|
Ferrous foundries |
Estimated from 2002 survey |
21,000 |
0.0058 - 89 |
0.10 |
0.00012 - 1.90 |
|
Non-ferrous metals (copper and other) |
Estimated from 2002 survey |
23,200 |
0.0053 - 17 |
0.13 |
0.000012 -0.394 |
|
Secondary aluminium |
Estimated from 2002 survey |
47,000 |
0.0027-17 |
0.15 |
0.00013 - 0.799 |
|
Total |
- |
261,200 |
- |
- |
0.017 - 3.10 |
a Taken as the geometric mean of the measured data.
b Data from 1998 dioxin inventory.
