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EcoSpold 1 · Calculation comparison

BAFU 2025 v2, Resource use minerals and metals

A comparison of published impact results with VoLCA calculations from the same source data and the publisher’s impact factors. Points on the diagonal agree.

This page shows engine v0.13.0, which is not the newest measured. Compare the engine versions, or see the current comparisons.

Engine version
volca 0.13.0 (8c0396c, v0.13.0, linux)
Measured on
Comparison measurements and reference
DatabaseBAFU 2025 v2
Source formatEcoSpold 1
Impact method collectionEF 3.1 adapted 1.05
Impact categoryResource use minerals and metals
Unitkg Sb eq
Activities compared11,551
Median ratio (VoLCA / published)0.9905
Comparison band1%
Activities outside the band5,704
Share outside the band49.38%
VerdictDisagrees: misses the agreement a release is held to
Points drawn2,094
Largest relative deviation+2,781,699.85%
Activity with largest deviationStibnite ore, 70% stibnite, at mine {CN}
Published referenceBAFU-2025 version2_LCIA Results.xlsx
BAFU 2025 v2, Resource use minerals and metals
Each point is one activity: what BAFU 2025 v2 published for Resource use minerals and metals (kg Sb eq), against what VoLCA computes from the same EcoSpold 1 source under the publisher's own EF 3.1 adapted 1.05 factors. The black line is equality and the grey band is 1%. 11,551 activities were compared; 5,704 fall outside the band, more than a picture can hold, so 1,926 of the 11,551 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 168 of the 200 farthest from equality that this walk missed are added. Where several fall on one spot, at most three markers are drawn there, since a fourth would not darken it. Median ratio 0.9905, 49.38% outside the band. This misses the agreement a release is held to: at most 5% of activities outside the band and a median ratio inside it.