01Atmospheric CO₂
Terminal air, HVAC return air, outdoor air intakes, enclosed spaces, parking structures, baggage buildings, and high-traffic zones. Best suited for DAC/HVAC capture, e-fuel screening, and public education where economics and energy use are credible.
02Fossil or Mixed CO₂
Boilers, CHP, central plants, backup generators, ground equipment, WtE plants, or nearby industrial systems. Best suited for point-source capture, utilization, storage, e-fuel analysis, and emissions-reduction claims.
03Biogenic Solids and Liquids
Food waste, landscaping waste, biosolids, paper, cardboard, wood, used cooking oil, fats, oils, and greases. Best suited for HEFA feedstock, AD/RNG, compost, biochar, hydrochar, or diversion pathways.
04Fossil Solids and Liquids
Plastics, synthetic materials, conventional fuel residues, oils, lubricants, and certain packaging streams. Best suited for recycling, chemical recycling, pyrolysis, gasification, controlled disposal, or careful waste-to-fuels screening.
05Mixed Municipal Waste
Airport trash, airline cabin waste, tenant waste, packaging, food residuals, plastics, fibers, and contaminated recyclables. Best suited for sorting, diversion, MSW-to-SAF screening, waste-to-energy linkage, or landfill-reduction strategies.
06Methane and Biogas
Landfill gas, anaerobic digestion gas, wastewater treatment gas, and organic-waste methane risk. Best suited for methane mitigation, RNG, power, CO₂ capture from biogas upgrading, or regional carbon-corridor planning.
07Regional Carbon Infrastructure
Landfills, transfer stations, wastewater plants, WtE facilities, food distributors, hotels, universities, hospitals, logistics parks, and nearby industrial emitters. Best suited for regional SAF corridors, carbon hubs, offtake aggregation, and infrastructure capital planning.