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Good afternoon,

I’ve recently got the Agrifootprint database and i’m struggling with the LCA of my scenario. I’ve read and watched all the tutorials, and I still couldn’t make it right.

I’ve created six processes and when I assemble them in a product system, the LCA results only shows the emissions of the first the process; but when i do it individually, they have relevant impacts.

So, I’m hoping that you can assist me in order to assemble all of the processes in one product system, and have the proper result of the LCA.

Thank you for your attention,

Giovana.
in openLCA by (120 points)

1 Answer

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by (126k points)
Difficult to answer without pictures, but maybe you need to adjust the reference product for your product system. Results are calculated "downwards" for products (to the supplier of your input, to the input supplier of your supplier, etc.) and "upwards" for waste (the receiver of your output, etc.). You need to select a product and process that sits at the end of the product supply chain and the beginning of the waste treatment chain. If you choose a process in a different position, you do not get all results. Hope this helps!
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