Extracted Data From: EPA GHG Emission Factors Hub

This submission includes publicly available data extracted in its original form. Please reference the Related Publication listed here for source and citation information <br /><br />

"EPA's GHG Emission Factors Hub was designed to provide organizations with a regularly updated and easy-to-use set of default emission factors for organizational greenhouse gas reporting. Key sources for emission factors include:
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(1) EPA's Greenhouse Gas Reporting Program
(2) EPA's Emissions & Generation Resource Integrated Database (eGRID)
(3) Inventory of U.S. Greenhouse Gas Emissions and Sinks
(4) EPA's Waste Reduction Model (WARM)
(5) Intergovernmental Panel on Climate Change (IPCC), Fifth Assessment Report (AR5)
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The 2025 annual update of the Emission Factors Hub (January 2025) includes updates to emission factors for purchased electricity from eGRID, mobile combustion, upstream and downstream transportation, business travel, product transport, and employee commuting. For the first time, grid gross loss percentages for each eGRID subregion have been added to table 6 which can be used to calculate scope 3, category 3 activity C (T&D losses)." [Quote from https://www.epa.gov/climateleadership/ghg-emission-factors-hub]
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If you have questions about the underlying source data, contact [e-mail]. If you have questions about this metadata entry contact the CAFE team at [e-mail]

本提交内容包含以原始形式提取的公开可用数据。请参阅此处列出的相关出版物以获取来源及引用信息。

美国环境保护署（Environmental Protection Agency, EPA）的温室气体排放因子中心（GHG Emission Factors Hub）旨在为各类机构提供一套定期更新、易于使用的默认排放因子集，用于机构温室气体报告编制。排放因子的主要来源包括：

1. 美国环境保护署（EPA）温室气体报告计划（Greenhouse Gas Reporting Program）
2. 美国环境保护署（EPA）排放与发电资源综合数据库（Emissions & Generation Resource Integrated Database, eGRID）
3. 《美国温室气体排放与汇清单》（Inventory of U.S. Greenhouse Gas Emissions and Sinks）
4. 美国环境保护署（EPA）废物减量模型（Waste Reduction Model, WARM）
5. 政府间气候变化专门委员会（Intergovernmental Panel on Climate Change, IPCC）第五次评估报告（Fifth Assessment Report, AR5）

本次2025年度更新版排放因子中心（2025年1月发布）对以下领域的排放因子进行了更新：外购电力（基于eGRID数据）、移动源燃烧、上下游运输、商务差旅、产品运输及员工通勤。本次更新首次将各eGRID子区域的电网总损耗占比纳入表6，可用于计算范围3、类别3活动C（输配电损耗）。以上内容引自https://www.epa.gov/climateleadership/ghg-emission-factors-hub

若您对基础源数据存在疑问，请联系[e-mail]；若您对本元数据条目存在疑问，请联系CAFE团队，邮箱地址为[e-mail]

搜集汇总

背景与挑战

背景概述

该数据集包含从EPA温室气体排放因子中心提取的公开数据，提供组织温室气体报告所需的默认排放因子。关键特点包括2025年更新的电力购买、移动燃烧等排放因子，并首次添加了电网总损耗百分比数据用于特定排放计算。