Steel plant processes and their significant pollutant types
| Process | Significant Pollutant Types |
| Integrated Steel Plants | |
| Sintering | Carbon dioxide, carbon monoxide, particulate matter, volatile organic compounds, nitrogen oxides, dioxins and furans |
| Cokemaking | Carbon dioxide, volatile organic compounds, nitrogen oxides, sulphur oxides, carbon monoxide, particulate matter, benzene, and PAHs |
| Ironmaking (Blast Furnace) |
Carbon dioxide, carbon monoxide, sulphur oxides, volatile organic compounds, nitrogen oxides, and particulate matter. |
| Steelmaking (Basic Oxygen Furnace) |
Carbon dioxide, carbon monoxide, particulate matter, and nitrogen oxides. |
| Boilers | Carbon dioxide, carbon monoxide, particulate matter, and nitrogen oxides. |
| Non-Integrated Steel Plants | |
| Steelmaking (Electric Arc Furnace) | Carbon dioxide, carbon monoxide, nitrogen oxides, particulate matter, dioxins and furans. |
| All Steel Plants | |
| Hot Rolling | Carbon dioxide, carbon monoxide, nitrogen oxides, particulate matter, and volatile organic compounds. |
| Cold Rolling | Volatile organic compounds. |
| Finishing | Carbon dioxide and nitrogen oxides. |
