Typically, the emission factor for landfilling is comprised of four parts: landfill CH4, CO2 emissions from
transportation and landfill equipment operation, landfill carbon storage, and avoided utility emissions. However, as
with other inorganic materials for which EPA has developed emission factors, there are no CH4 emissions, or
avoided utility emissions associated with landfilling concrete. Studies have indicated that over time, the cement
portion of concrete is capable of absorbing CO2.
20 The amount of carbon stored is affected by age, cement content,
and the amount of exposed surface area. While this effect would represent landfill carbon storage when concrete is
deposited in a landfill, the results of this with respect to the emission factor are difficult to quantify and beyond the
scope of this report.
Typically, the emission factor for landfilling is comprised of four parts: landfill CH4, CO2 emissions fromtransportation and landfill equipment operation, landfill carbon storage, and avoided utility emissions. However, aswith other inorganic materials for which EPA has developed emission factors, there are no CH4 emissions, oravoided utility emissions associated with landfilling concrete. Studies have indicated that over time, the cementportion of concrete is capable of absorbing CO2.20 The amount of carbon stored is affected by age, cement content,and the amount of exposed surface area. While this effect would represent landfill carbon storage when concrete isdeposited in a landfill, the results of this with respect to the emission factor are difficult to quantify and beyond thescope of this report.
การแปล กรุณารอสักครู่..
