DataTopic LCA

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Lifecycle Assessment data structure

List of LCA impact indicators

Status: DRAFT

Background presentation on LCA indicator data points

Indicator overview
Group IndicatorKey Indicator(eng) Definition ValueUnits
Emissions CarbonFootPrint Greenhouse Gas (GHG) Emissions Measures the emissions of GHGs, often expressed in terms of CO2 equivalents kgCO2e
Water WaterFootprint Blue Water Footprint Quantifies the consumption of surface and groundwater resources CBM
Energy EnergyUse Energy Use Assesses the total energy consumption, often distinguishing between renewable and non-renewable sources MJ or KWH
Eutrophication Potential LcaNitroEmissions H+ Nitrogen Emissions Indicates the impact on aquatic ecosystems due to excess nutrients MOL
Eutrophication Potential LcaPhospEmissions H+ Phosphorus Emissions Indicates the impact on aquatic ecosystems due to excess nutrients MOL
Acidification Potential LcaAcidPotential H⁺ Ion Acidification Potential Measures the potential of substances to cause acid rain (measured in moles of H+ or equivalent) MOL
Ozone Depletion Potential LcaOzoneDepPot Ozone Depletion Potential Assesses the impact on the ozone layer KGCFC11E
Resource Depletion LcaRenewResDep Renewable Resource Depletions Evaluates the depletion of renewable natural resources KG
Resource Depletion LcaNonRenewResDep Non-Renewable Resource Depletions Evaluates the depletion of non-renewable natural resources KG
Waste LcaWasteGenerate Waste Generation Quantifies the amount and type of waste produced KG or CBM
Toxicological Impact LcaToxicImpact Toxicological Impact Assesses the potential toxic impacts on human health and ecosystems (measured in comparative toxic units) CTU

Value Units and Unit Of Measure

Value units are the units related to the LCA indicator (e.g. for GHG Emissions this is kgCO2e) and the Unit of Measure is to define for what quanity this value applies (e.g. per meter, per kg or per piece).

ValueUnits, for the various impact indicators

  • KGCO2E | Kilogram CarbonDioxide equivalent
  • KGCFG11E | Kilogram Chlorofluorocarbon-11 equivalent
  • CBM | Cubic meter {is also an Unit of Measure}
  • KG | Kilogram {is also an Unit of Measure}
  • MJ | Megajoule
  • KWH | Kilowatt-hours
  • MOL | Mole
  • CUT | Comparative Toxic Units

Functional Units, to indicate to what the impact indicator applies, so x per y Unit of Measure

  • Length (UnitDomain)
    • MTR | Meter
    • DCM | Decimeter
    • CM | Centimeter
    • MM | Milimeter
  • Surface (UnitDomain)
    • SQM | Square meter
  • Volume (UnitDomain)
    • CBM | Cubic meter
    • LTR | Liter
    • CL | Centiliter
    • ML | Milliliter
  • Mass
    • KG | Kilogram
    • GRM | Gram
    • MG| Miligram
    • UG | Microgram
  • Each | One consumer unit or trade item, typically a product with its packaging
  • PCE | Piece
  • PRT | Portion


For units this is the basis that is used Unified Code for Units of Measure is used to create UnitKeys for exahnge data.

Sample LCA Data set

This first example of a data point is for a raw material: The Greenhouse Gas emissions are 3,2 kgCO2e per 1 kg product (for example for raw materials in food like salt or flour) measured at the warehouse of the seller,so the LCAterm is SRD ((SRD= Ready for Dispatch), identified by GLN 1234567891023

  • IndicatorKey: CarbonFootPrint
    • IndicatorValue: 3,2
    • IndicatorValueUnit: kgCO2eq
    • FunctionUnitQty:1
    • FunctionalUnitUnit: KG
    • LCATerm: DAP
    • Location
      • GLN: 1234567891023
      • GPS: Long + Lat?
      • TrueCode: 5257f138-9f02-4768-89cb-a6b2327ce72c

Second example: Consumer Unit The Greenhouse Gas emissions are 2,7 kgCO2eq per consumer unit (TradeItemID, for example for a can of 8 hotdogs), the value included the transport emission to the buyer (e.g. retailer) since the LCAterms are Delivered at Buyer (DAB), and value is based on location 7834567891023 (GLN)

  • TradeItemID
    • GTIN: 2365897158624
  • IndicatorKey: CarbonFootPrint
    • IndicatorValue: 2,7
    • IndicatorValueUnit: kgCO2eq
    • FunctionUnitQty:1
    • FunctionalUnitUnit:TI {TradeItem}
    • LCATerm: DAB
    • PointofOrgin
      • GLN: 1234567891023
    • Destination:
      • GLN: 7834567896574

The data set above shown in a table:

LCA Data sharing in "Spreadsheet" format
LCAKEY IndicatorValue ValueUnit PerQty PerUom LCAterm PointofOrgin Destination
LCAGHG 3,2 KGCO2E 1 KG SRD GLN: 1234567891023 GLN: 7834567896574
LCAGHG 2,7 KGCO2E 1 TI DAB GLN: 1234567891023 GLN: 7834567896574

XML Sample for the first LCA Indicator 

<LCA xmlns="https://imde.io/schema/azlon/1.0/lca" xsi:schemaLocation="https://imde.io/schema/azlon/1.0/lca https://imde.io/schema/azlon/1.0/lca.xsd">
	<ImpactIndicators>
		<ImpactIndicator Key="LCAGHG">
			<Value>3.2</Value>
			<Unit>
				<UnitValue Type="IMDE">KGCO2E</UnitValue>
			</Unit>
			<Quantity>
				<Value>1</Value>
				<Unit>
					<UnitValue Type="GDSN">KGM</UnitValue>
					<UnitValue Type="DataReceiver">KG</UnitValue>
			</Unit>
			</Quantity>
			<Term>SRD</Term>
			<PointofOrgin>
				<PointofOrginValue Type="GLN">1234567891023</PointofOrginValue>
				<PointofOrginValue Type="TrueCode">5257f138-9f02-4768-89cb-a6b2327ce72c</PointofOrginValue>
			</PointofOrgin>
			<Destination>
				<DestinationValue Type="GLN">7834567896574</DestinationValue>
			</Destination>
		</ImpactIndicator>
	</ImpactIndicators>
</LCA>

You can combine this data with the weigth & dimensions data for this Trade Item. In the example below a can of 8 hotdogs

  • GrossWeight: 500 GRM
  • NetWeight: 450 GRM
  • DrainedWeight: 300 GRM
  • TaraWeight: 50 GRM (packaging weight)
  • 8 Pieces (this trade item contains 8 pieces, e.g. 8 hot-dogs)
  • 4 Portions (this item contains 4 portions

Now you can calculate:

  • GHG Emissions per Kg product including packaging, based on gross weight: 2,7kg/0,5 = 5,4 kgCO2eq per 1 kg product/trade item/consumer unit
  • GHG Emissions per Portion, based on 4 portions: 2,7kg/4 = 0,675 kgCO2eq per 1 Portion
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