Methane Leaks
Oil & gas · Not seen recently

Methane emitter CHN_S_300

O&G facility (generic) in China. Satellites have detected 8 methane plumes here since 20 Oct 2023, most recently on 30 May 2025.

8
Plumes
4
Plumes, last 12 months
5,254 kg/h
Largest detected rate
1,664 kg/h
Typical (median) rate
Satellite map of methane plume locations in CHN_S_300
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.

Other candidates

  • PetroChina Weak (context only)

What do confidence levels mean?

Write to the operator

Response so far

Source type
O&G facility (generic)
UNEP notified
Yes
Operator responded to UNEP
No
First seen
20 Oct 2023
Last seen
30 May 2025
Coordinates
45.46668, 85.12358 · Open in Google Maps (satellite)

Plume history

30 May 2025: 986 kg/h28 May 2025: 1,408 kg/h4 Apr 2025: 1,940 kg/h31 Mar 2025: 842 kg/h15 Jun 2024: 5,254 kg/h27 May 2024: 1,649 kg/h21 Apr 2024: 1,680 kg/h20 Oct 2023: 2,471 kg/h 20 Oct 2023 30 May 2025 5,254 kg/h
Emission rate of each detected plume over time
Detected Emission rate Likely operator
30 May 2025Oil & gas 986 kg/h Not yet attributed View
28 May 2025Oil & gas 1,408 kg/h Not yet attributed View
4 Apr 2025Oil & gas 1,940 kg/h Not yet attributed View
31 Mar 2025Oil & gas 842 kg/h Not yet attributed View
15 Jun 2024Oil & gas 5,254 kg/h Not yet attributed View
27 May 2024Oil & gas 1,649 kg/h Not yet attributed View
21 Apr 2024Oil & gas 1,680 kg/h Not yet attributed View
20 Oct 2023Oil & gas 2,471 kg/h Not yet attributed View

Authorities you can notify

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