RT null T1 Chapter 3 E-Annex: Methodology for estimating mercury emissionsto air and results of the 2015 global emissions inventory A1 Arctic Council, A1 United Nations Environment Programme, K1 mercury contamination K1 mercury K1 emission inventory YR 2019 FD 2019 LK https://wedocs.unep.org/handle/20.500.11822/29832 UL https://wedocs.unep.org/handle/20.500.11822/29832 NO This technical annex, serving as Chapter 3 of the Global Mercury Assessment, outlines the methodology used to estimate global mercury emissions to air for the 2015 emissions inventory. It applies a rigorous, three-step approach: collecting statistical activity data, applying unabated emission factors (UEFs), and incorporating technological controls for mercury abatement. Chapter 3 provides detailed examples, including sector-specific calculations such as for cement production in China and mercury emissions from artisanal and small-scale gold mining (ASGM). The annex highlights the critical role of assumptions due to sparse data, using proxies like GDP-PPP and regional technology profiles. It also presents emission factor tables and abatement technology profiles across diverse sectors—from coal combustion and metal production to waste incineration and cremation. DS UN Environment Document Repository RD Sep 16, 2026