Data & Methods

Level(s) Reporting

The level(s) approach is linked to the Level(s) European Reporting Framework for Sustainable Buildings adapted. The Level(s) Reporting System uses Environmental Product Declarations (EPDs) in accordance with EN15804+A2. This approach can also be used for other assessment systems that accept the Level(s) system, e.g. in the context of the category LEED BD+C: New Construction of the LEED certification system.

Life cycle phases

The following life cycle modules are used for level(s) reporting: Production A1-A3, transportation to construction site A4, replacement/replacement B4, energy B6, disposal (C3, C4), recycling (material D1, energy D2).

Environmental impact indicators

Core indicators according to EN15804+A2.

Abbreviation	Indicator	Unit
GWP_total	Global Warming Potential, total	kg CO2-eq.
GWP_fossil	Global Warming Potential, fossil	kg CO2-eq.
GWP_biogenic	Global Warming Potential, biogenic	kg CO2-eq.
ODP	Ozone depletion potential	kg CFC 11 eq.
POCP	Photochemical Ozone Creation Potential	kg NMVOC-Eq
AP	Acidification potential	mol H+-Eq
EP_freshwater	Eutrophication potential, aquatic freshwater	kg P-eq.
EP_marine	Eutrophication potential, aquatic marine	kg N-eq.
EP_terrestrial	Eutrophication potential	Mole of N eq.
PENRT	Total use of non-renewable primary energy resources	MJ
PERT	Total use of renewable primary energy resources	MJ
ADPE	Abiotic depletion potential - non-fossil resources	kg Sb-eq.
ADPF	Abiotic depletion potential - fossil resources	MJ
WDP	Use of net fresh water	m³