Emissões resíduo em aterro
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
This calculator estimates greenhouse gas (GHG) emissions from the disposal of solid waste in landfills. It considers the global warming potential of gases generated by anaerobic decomposition of organic matter, mainly methane (CH4) and carbon dioxide (CO2). The result is expressed in tonnes of CO2 equivalent per tonne of waste (tCO2eq/t).
The calculation is based on an average emission factor of 1.1 tCO2eq per tonne of waste sent to landfill. This value incorporates the degradable organic carbon fraction, typical methane capture efficiency (if any), and the global warming potential of methane (28 times that of CO2 over 100 years). The calculator multiplies the input waste mass by the fixed factor, providing a simplified estimate.
Use this tool to assess the carbon footprint associated with domestic, commercial or industrial waste generation. It is useful for emission inventories, sustainability reports, waste reduction planning, or carbon offsetting. The result can guide actions to divert waste from landfills, such as recycling, composting, or biogas energy recovery.
Note: the 1.1 tCO2eq/t factor is a global average that can vary depending on waste composition, presence of methane capture systems, and local climate conditions. For landfills with high recycling rates or methane flares, actual emissions may be lower. Consult specific data from your country or landfill for greater accuracy.
Frequently asked questions
Does the 1.1 tCO2eq/t factor consider methane capture?
Yes, the average factor assumes typical methane capture efficiency, but does not reflect very efficient or absent systems. For more accuracy, adjust with local data.
Can I use this calculation for composted organic waste?
No. Composting has a different emission profile and generally produces less methane. Use a specific calculator for composting.
Does the calculator account for biogenic carbon?
The 1.1 tCO2eq/t factor already includes biogenic CO2 and methane emissions per IPCC standard. Biogenic CO2 is considered neutral in some inventories, but methane is the main contributor.
What is the difference between a sanitary landfill and a dump?
Sanitary landfills have liners and gas capture systems, reducing emissions. Uncontrolled dumps emit more methane. This calculator uses average factor for landfills, not dumps.
How can I reduce the calculated value?
Reduce waste sent to landfill through recycling, composting, reuse, or thermal treatment with energy recovery. Each tonne diverted avoids 1.1 tCO2eq.