EcoSpold 2 · Calculation comparison

ecoinvent 3.9.1 cut-off, human toxicity: non-carcinogenic, organics

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.

Engine version: volca 0.14.0 (bd7e64a, v0.14.0, linux)
Measured on: 2026-09-20

Comparison measurements and reference
Database	ecoinvent 3.9.1 cut-off
Source format	EcoSpold 2
Impact method collection	EF v3.1
Impact category	human toxicity: non-carcinogenic, organics
Unit	CTUh
Activities compared	19,785
Median ratio (VoLCA / published)	1.0000
Comparison band	1%
Activities outside the band	315
Share outside the band	1.59%
Verdict	Agrees: meets the agreement a release is held to
Points drawn	2,156
Largest relative deviation	+1,576,714.95%
Activity with largest deviation	amine oxide production
Published reference	ecoinvent 3.9.1_cutoff_cumulative_lcia_xlsx.7z

Each point is one activity: what ecoinvent 3.9.1 cut-off published for human toxicity: non-carcinogenic, organics (CTUh), against what VoLCA computes from the same EcoSpold 2 source under the publisher's own EF v3.1 factors. The black line is equality and the grey band is 1%. 19,785 activities were compared; 315 fall outside the band, more than a picture can hold, so 1,979 of the 19,785 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 177 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 1.0000, 1.59% outside the band. This meets the agreement a release is held to: at most 5% of activities outside the band and a median ratio inside it.