Properties 1–7 should be assessed in any study. Often only the CO 2 -footprint of
a process is evaluated, that is not enough to correctly determine the environmental
impact of a process.
Table G.1 (continued)
Impact
category/Indicator
Unit
Description
Eutrophication
kg PO 4
3−
-eq
Indicator of the enrichment of the aquatic
ecosystem with nutritional elements, due to the
emission of nitrogen or phosphor-containing
compounds
Photochemical ozone
creation
kg ethene-eq
Indicator of emissions of gases that affect the
creation of photochemical ozone in the lower
atmosphere (smog) catalyzed by sunlight
Depletion of abiotic
resources—elements
kg Sb-eq
Indicator of the depletion of natural non-fossil
resources
Depletion of abiotic
resources—fossil
fuels
MJ
Indicator of the depletion of natural fossil fuel
resources
Human toxicity
1,4-DCB-eq
Impact on humans of toxic substances emitted
to the environment (Dutch version of EN15804
only)
Fresh water aquatic
ecotoxicity
1,4-DCB-eq
Impact on freshwater organisms of toxic
substances emitted to the environment (Dutch
version of EN15804 only)
Marine aquatic
ecotoxicity
1,4-DCB-eq/sup>
Impact on seawater organisms of toxic
substances emitted to the environment (Dutch
version of EN15804 only)
Terrestrial
ecotoxicity
1,4-DCB-eq
Impact on land organisms of toxic substances
emitted to the environment (Dutch version of
EN15804 only)
Water pollution
m
3
Indicator of the amount of water required to
dilute toxic elements emitted into water or soil
(french version of EN15804 only)
Air pollution
m
3
Indicator of the amount of air required to dilute
toxic elements emitted into air (French version
of EN15804 only)
246
Appendix G