Activity Data

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Definition

Activity Data are quantitative measures of a level of activity that results in GHG Emissions. It is a measure that models what is taking place during a given period of time (e.g., volume of gas used, kilometers driven, tonnes of solid waste sent to landfill, etc.)

Data Sourcing (Collection) is an integral part of developing and updating a GHG Inventory. This includes gathering existing data, generating new data, and adapting data for inventory use. [1]


Usage

Activity data is multiplied by an GHG Emission Factor to derive the GHG emissions associated with a process or an operation. [2]

Examples

  • kilowatt-­hours of electricity used
  • quantity of fuel used
  • output of a process
  • hours equipment is operated
  • distance traveled, and
  • floor area of a building


References

  1. Global Protocol for Community-Scale Greenhouse Gas Inventories, An Accounting and Reporting Standard for Cities, Version 1.1, 2021. WRI, C40, IOCLEI
  2. The Greenhouse Gas Protocol, Policy and Action Standard