RT null T1 Aerial and ground-based measurements of coal mine methane emissions in Poland A1 United Nations Environment Programme, K1 coal mine K1 methane K1 emission level K1 Poland YR 2024 FD 2024-11 LK https://wedocs.unep.org/handle/20.500.11822/46608 UL https://wedocs.unep.org/handle/20.500.11822/46608 NO UNEP’s International Methane Emissions Observatory supports measurement and research studies around the world to close the knowledge gap on methane emissions and provide policy-relevant insights to decisionmakers. The following study provides insights related to: Assessing methods to quantify emissions from ventilation shafts, the single largest source of coal mine methane. DS UN Environment Document Repository RD Sep 22, 2026