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EcoSpold 1 · Calculation comparison

BAFU 2026 v1, Heavy metals into water

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 2026 v1
Source formatEcoSpold 1
Impact method collectionEcological Scarcity 2021
Impact categoryHeavy metals into water
UnitUBP
Activities compared11,647
Median ratio (VoLCA / published)9.8227
Comparison band1%
Activities outside the band11,644
Share outside the band99.97%
VerdictDisagrees: misses the agreement a release is held to
Points drawn2,112
Largest relative deviation+15,697,967,030,857,028%
Activity with largest deviationDisposal, spoil from coal mining, in surface landfill
Published referenceBAFU-2026 v1 LCIA Results.xlsx
BAFU 2026 v1, Heavy metals into water
Each point is one activity: what BAFU 2026 v1 published for Heavy metals into water (UBP), against what VoLCA computes from the same EcoSpold 1 source under the publisher's own Ecological Scarcity 2021 factors. The black line is equality and the grey band is 1%. 11,647 activities were compared; 11,644 fall outside the band, more than a picture can hold, so 1,942 of the 11,647 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 170 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 9.8227, 99.97% 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.