Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of environmental impact contribution for the proposed SHTES materials: (a) climate change (CO2 eq. emission); (b) ozone depletion (CFC11 eq. emission); (c) particulate matter (PM2.5 emission); (d) photochemical oxidant formation (NMVOC eq. formation); (e) terrestrial acidification (SO2 eq. production); (f) fossil fuel depletion (oil eq. consumption).
