ziu2 hei3沼氣沼气
Jyutpingziu2 hei3
Yalejíu hei
Definition
Biogas, marsh gas, or sewer gas; a flammable gas produced by the decomposition of organic matter in the absence of oxygen.
neutralother
How it's used
沼氣 is a technical term primarily used in scientific, environmental, or news contexts rather than casual daily conversation. It is frequently associated with safety warnings regarding confined spaces like sewers or waste management facilities. Unlike 煤氣, which refers to the piped gas used for cooking in Hong Kong households, 沼氣 is specifically linked to the decomposition of organic matter.
Examples
The biogas inside the sewer is very dangerous, don't just go down there.
Will this landfill produce a lot of biogas?
Related words
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Grammar guides
- In 30 secondsThe whole language at a glance. No tenses, no plurals, six tones, sentence particles. Read this before you dive into any specific topic.
- ParticlesSentence particles add tone, emotion, and nuance. Learn the most common particles in Cantonese and how to use them.
- Possession (嘅)How to say my, your, and his, and how to link a describing word to a noun, all with the little word 嘅 (ge3).



