Methane Leaks
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Coal · Frequent

Methane emitter CHN_S_121

Venting shaft in China. Satellites have detected 16 methane plumes here since 7 Feb 2023, most recently on 17 Aug 2026.

16
Plumes
5
Plumes, last 12 months
8,118 kg/h
Largest detected rate
2,506 kg/h
Typical (median) rate
Satellite map of methane plume locations in CHN_S_121
Map imagery © Mapbox © OpenStreetMap © MaxarOpen the interactive map →
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Who likely operates it

We don't have enough evidence to name an operator for this site yet. If you know who runs it, tell us below.

What do confidence levels mean?

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Response so far

Source type
Venting shaft
UNEP notified
Not applicable
Operator responded to UNEP
Not applicable
First seen
7 Feb 2023
Last seen
17 Aug 2026
Coordinates
37.74429, 113.55029 · Open in Google Maps (satellite)

Plume history

17 Aug 2026: 2,079 kg/h27 Jun 2026: 2,687 kg/h3 Apr 2026: 1,829 kg/h29 Sep 2025: 719 kg/h25 Sep 2025: 4,271 kg/h18 Aug 2025: 2,715 kg/h11 Jun 2025: 1,883 kg/h8 Jun 2025: 8,118 kg/h4 Jun 2025: 2,326 kg/h22 Apr 2025: 3,874 kg/h14 Apr 2025: 3,158 kg/h1 Feb 2025: 1,740 kg/h23 Apr 2024: 1,676 kg/h28 Mar 2024: 2,812 kg/h30 Jan 2024: 5,871 kg/h7 Feb 2023: 2,086 kg/h 7 Feb 2023 17 Aug 2026 8,118 kg/h
Emission rate of each detected plume over time
Detected Emission rate Likely operator
17 Aug 2026Coal 2,079 kg/h Not yet attributed View
27 Jun 2026Coal 2,687 kg/h Not yet attributed View
3 Apr 2026Coal 1,829 kg/h Not yet attributed View
29 Sep 2025Coal 719 kg/h Not yet attributed View
25 Sep 2025Coal 4,271 kg/h Not yet attributed View
18 Aug 2025Coal 2,715 kg/h Not yet attributed View
11 Jun 2025Coal 1,883 kg/h Not yet attributed View
8 Jun 2025Coal 8,118 kg/h Not yet attributed View
4 Jun 2025Coal 2,326 kg/h Not yet attributed View
22 Apr 2025Coal 3,874 kg/h Not yet attributed View
14 Apr 2025Coal 3,158 kg/h Not yet attributed View
1 Feb 2025Coal 1,740 kg/h Not yet attributed View
23 Apr 2024Coal 1,676 kg/h Not yet attributed View
28 Mar 2024Coal 2,812 kg/h Not yet attributed View
30 Jan 2024Coal 5,871 kg/h Not yet attributed View
7 Feb 2023Coal 2,086 kg/h Not yet attributed View

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