EcoSpold 1 · Calculation comparison

BAFU 2026 v1, Ecotoxicity freshwater (inorganics)

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: 2026-09-18

Comparison measurements and reference
Database	BAFU 2026 v1
Source format	EcoSpold 1
Impact method collection	EF 3.1 adapted 1.05
Impact category	Ecotoxicity freshwater (inorganics)
Unit	CTUe
Activities compared	11,656
Median ratio (VoLCA / published)	26.8348
Comparison band	1%
Activities outside the band	11,651
Share outside the band	99.96%
Verdict	Disagrees, for a known reason
Known reason	The two published columns carry each other's labels: the method file files copper compounds under inorganics and glyphosate under organics, and held against the organics column the median ratio is 0.9246 instead of 36.5. The 7 percent that remain say the split itself differs, which no matching of names would recover.
Points drawn	2,110
Largest relative deviation	+177,088,241,829,711.35%
Activity with largest deviation	Disposal, spoil from coal mining, in surface landfill
Published reference	BAFU-2026 v1 LCIA Results.xlsx

Each point is one activity: what BAFU 2026 v1 published for Ecotoxicity freshwater (inorganics) (CTUe), 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%. 11,656 activities were compared; 11,651 fall outside the band, more than a picture can hold, so 1,943 of the 11,656 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 167 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 26.8348, 99.96% 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), for a known reason: The two published columns carry each other's labels: the method file files copper compounds under inorganics and glyphosate under organics, and held against the organics column the median ratio is 0.9246 instead of 36.5. The 7 percent that remain say the split itself differs, which no matching of names would recover.