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Should the categorisation of elementary flows be the same in input and output in lca analysis? For example, a chemical-X is in a process bot in input and output. For input part, I have shoosen chemical-x as elementary flow/ emission to air/ industrial, but for outpart, I have chosen chemical -x as elementary flow/ emission to soil/ agricultural. Is this correct,or do I have to choose the same?
in openLCA by (120 points)

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by (126k points)

Hm your question is a bit abstract, but an emission is not an input thus I would not follow you with

For input part, I have shoosen chemical-x as elementary flow/ emission to air/ industrial

An input is rather a resource.

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