RT null T1 Toolkit for Identification and Quantification of MercuryReleases - Guideline for Inventory Level 1 Version 2.2February 2023 A1 United Nations Environment Programme, K1 mercury YR 2023 FD 2023-02 LK https://wedocs.unep.org/handle/20.500.11822/30686 UL https://wedocs.unep.org/handle/20.500.11822/30686 NO The guideline and the calculation spreadsheet bring you step by step through the development of your mercury inventory on Inventory Level 1. The design of Inventory Level 1 makes it simple to organise and calculate your first national mercury inventory. We acknowledge however that mercury inventory development is generally challenging, especially getting hold of the needed data types for your country. DS UN Environment Document Repository RD Sep 21, 2026