Table: Annual PCDD and PCDF emissions from the secondary metallurgical industry, 2002
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|
Metal production sector |
Basis of production estimate |
Annual production |
Measured emission factors |
Emission range |
|---|---|---|---|---|
|
Secondary steel |
One large plant in Auckland (as per 1998 inventory) |
170,000 |
0.098 - 0.37a |
0.017- 0.063 |
|
Ferrous foundries |
Estimated from this survey |
21,000 |
0.0058 - 89 |
0.00012 - 1.90 |
|
Non-ferrous metals (copper and other) |
Estimated from this survey |
23,200 |
0.0053 - 17 |
0.000012 - 0.394 |
|
Secondary aluminium |
Estimated from this survey |
47,000 |
0.0027 - 17 |
0.00013 - 0.799 |
|
Total |
- |
261,200 |
- |
0.017 - 3.10 |
a Data from 1998 dioxin inventory.
