CAEP

The China Products Carbon Footprint Factors Database (2022), published by the Chinese Academy of Environmental Planning (CAEP), is used as a source of China-specific emission factors for products, materials, fuels, and manufactured goods. According to CAEP, the database is developed with reference to the principles and methods of ISO 14067:2018 (Greenhouse gases - Carbon footprint of products - Requirements and guidelines for quantification) and compiles product carbon footprint data from publicly available literature, technical reports, and life-cycle studies.

Product and material emission factors generally represent production-stage emissions (cradle-to-gate), including electricity use and transportation, rather than a full cradle-to-grave product footprint.

For fuel emission factors, the database distinguishes between upstream emissions and fuel combustion/use emissions where both are available.

This dataset standardises all emissions as CO2-equivalent (CO2e) using GWP(100) values from the IPCC Sixth Assessment Report (2021).

Note that wood and bamboo-based products include an adjustment for carbon storage (reported by CAEP as 1.834 tCO2 per tonne of material).

System boundaries are not fully consistent across all emission factors, because the database is compiled from different public studies and literature sources.

Wood and bamboo product factors include a carbon storage adjustment, so results may not be directly comparable with datasets that exclude temporary biogenic carbon storage.