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EcoSpold 2 · Calculation comparison

ecoinvent 3.8 cut-off, water pollutants

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
Comparison measurements and reference
Databaseecoinvent 3.8 cut-off
Source formatEcoSpold 2
Impact method collectionecological scarcity 2013
Impact categorywater pollutants
UnitUBP
Activities compared18,429
Median ratio (VoLCA / published)1.0000
Comparison band1%
Activities outside the band0
Share outside the band0%
VerdictAgrees: meets the agreement a release is held to
Points drawn1,843
Largest relative deviation0%
Activity with largest deviationmarket for cement, alternative constituents 45%
Published referenceecoinvent 3.8_cutoff_cumulative_lcia_xlsx.7z
ecoinvent 3.8 cut-off, water pollutants
Each point is one activity: what ecoinvent 3.8 cut-off published for water pollutants (UBP), against what VoLCA computes from the same EcoSpold 2 source under the publisher's own ecological scarcity 2013 factors. The black line is equality and the grey band is 1%. 18,429 activities were compared; 1,843 from inside the band are drawn, evenly spaced over the published value. Where several fall on one spot, at most three markers are drawn there, since a fourth would not darken it. Median ratio 1.0000, 0.00% 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.