Hi, interesting question. Aggregation within a sector is not possible so far via the LCIA method, as you would need to distinguish by contributing process, but it should be possible via the grouping feature in openLCA, in the analysis result. You could do this for the "LCIA" result, and also for the single risk scores. You can also of course modify the exponential factors in the LCIA method, I invented them some time ago, then still for the SHDB, as the risks seem not really linear, but do not take the factor values too seriously. Let me know if these suggestions work for you, thank you.