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| sector:ippu:metal_production:iron_and_steel_production:start [2022/06/20 22:19] – [Method] reichel | sector:ippu:metal_production:iron_and_steel_production:start [2022/06/20 22:19] (current) – [Recalculations] reichel | ||
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| For more **information on recalculated emission estimates for the Base Year and 2019**, please see the pollutant specific recalculation tables in the following chapter [[general: | For more **information on recalculated emission estimates for the Base Year and 2019**, please see the pollutant specific recalculation tables in the following chapter [[general: | ||
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| + | **PAH** | ||
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| + | In the 2021 review the application of a consistent methodology in reporting of PAH emissions in 2C1-iron and steel production was claimed. As there is not enough data available to report individual PAHs Germany decided to only report total-PAHs for the whole time. But for pig iron production a national total-PAH emission factor was missing. For that source the national inventory solely included BaP emissions. Due to the limitation of data the total-PAH emission factor for pig iron production was derived from the BaP emission factor on the basis of the following conservative ansatz (not changing the overall PAH emission trend): | ||
| + | Emissions of PAH depend on the coating material used. The emission factor in table 3.8 of the actual emission guidebook 2019 for pig iron production (2500 mg/t) is only valid for tar containing coating material and excluded abatement technics. Both assumptions are not appropriate for Germany. As tar-free materials are used for coating PAH emissions should not play any role. And the blast furnace gas is conducted and used. But as PAH emissions could not be surely ruled out and in order to avoid an underestimation of PAH emissions in pig iron production the emission factor for total-PAH is set to the 10-fold of the BaP emission factor. | ||
| ===== Planned improvements ===== | ===== Planned improvements ===== | ||