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I use the ef_secondary_data_202202_1 dataset and I observe that some elementary flows, which are used in processes, does not have impact factor provided.

Example with the Emission to air/Emission to air, unspecified/potassium. This elementary flow is used as an emission in plenty of processes of the dataset but I guess it don't have impact on the analysis.

Am I rigth ? Is this normal ?

Than you in advance.
in openLCA by (120 points)

1 Answer

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by (520 points)
Hello Nico, you may have to model the flows to the respective impact assessment method. Please be sure to use correct impact factors for each representative flow. Thanks