Table 1.

Subindicators describing environmental impact indicator.

Indicator	Unit
Global warming potential, GWP	kg CO2 equiv
Depletion potential of the stratospheric ozone layer, ODP	kg CFC 11 equiv
Acidification potential of land and water; AP	kg SO2− equiv
Eutrophication potential, EP	kg (PO4)3− equiv
Formation potential of tropospheric ozone photochemical oxidants, POCP	kg ethene equiv
Abiotic resource depletion potential for elements; ADP_elements	kg Sb equiv
Abiotic resource depletion potential of fossil fuels ADP_fossil fuels	MJ