Earthster

The TRACI 2.1 impact categories are available for users <a href="https://docs.earthster.org/en/articles/6819750-benefits-of-having-a-full-ecoinvent-license">with a full Ecoinvent license</a>.

Tool for the Reduction and Assessment of Chemical and other environmental Impacts (TRACI)

<a href="https://www.epa.gov/chemical-research/tool-reduction-and-assessment-chemicals-and-other-environmental-impacts-traci" rel="nofollow noopener noreferrer" target="_blank">TRACI 2.1</a> (the Tool for the Reduction and Assessment of Chemical and other environmental Impacts) is an environmental impact assessment method developed by the U.S. Environmental Protection Agency.

It provides characterization factors for Life Cycle Impact Assessment (LCIA), industrial ecology, and sustainability metrics. Characterization factors quantify the potential impacts that inputs and releases have on specific impact categories in common equivalence units. Impact categories include: 

List of the TRACI 2.1 impact categories and corresponding units.

<a href="https://docs.earthster.org/en/articles/8224478-viewing-other-impact-categories">Follow these instructions</a> to learn how to view other impact categories.

- Global warming:
 - added characterization factors (CFs) for <code>Carbon dioxide, land use</code> based on <code>Carbon dioxide</code>,
 - added -1 CF for <code>Carbon dioxide emission/ground</code> (and subcontexts, e.g. <code>emission/ground/human-dominated/urban</code>, etc.)
 - added CFs to <code>Methane, biogenic</code> and <code>Methane, land use</code> (based on <code>Methane</code>)
- Human health - particulate matter: added CFs to <code>Carbon monoxide, biogenic</code> and <code>Carbon monoxide, land use</code> (based on <code>Carbon monoxide</code>)
- Smog formation:
 - added CFs to <code>Carbon monoxide, land use</code> and <code>Carbon monoxide, biogenic</code> (same as <code>Carbon monoxide</code>)
 - added CFs to <code>Methane, land use</code> and <code>Methane, biogenic</code> (same as <code>Methane</code>)

- 2024-11-29: 
 - Global warming:
 - added characterization factors (CFs) for <code>Carbon dioxide, land use</code> based on <code>Carbon dioxide</code>,
 - added -1 CF for <code>Carbon dioxide emission/ground</code> (and subcontexts, e.g. <code>emission/ground/human-dominated/urban</code>, etc.)
 - added CFs to <code>Methane, biogenic</code> and <code>Methane, land use</code> (based on <code>Methane</code>)
 - Human health - particulate matter: added CFs to <code>Carbon monoxide, biogenic</code> and <code>Carbon monoxide, land use</code> (based on <code>Carbon monoxide</code>)
 - Smog formation:
 - added CFs to <code>Carbon monoxide, land use</code> and <code>Carbon monoxide, biogenic</code> (same as <code>Carbon monoxide</code>)
 - added CFs to <code>Methane, land use</code> and <code>Methane, biogenic</code> (same as <code>Methane</code>)
- 2023-07-25: TRACI2.1 becomes available

Impact category	Unit
Acidification	kg SO2 eq
Eutrophication	kg N eq
Freshwater ecotoxicity	CTUeco
Global warming	kg CO2 eq
Human health - cancer	CTUcancer
Human health - non-cancer	CTUnoncancer
Human health - particulate matter	PM 2.5 eq
Ozone depletion	kg CFC-11 eq
Smog formation	kg O3 eq

Tool for the Reduction and Assessment of Chemical and other environmental Impacts (TRACI)

TRACI 2.1 impact categories

Viewing the TRACI 2.1 impact categories

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