noun HSK 5
Traditional 廢氣
waste gas · exhaust fumes · emissions
Meaning
废气 refers to gases released as byproducts of combustion or industrial processes that are no longer useful and often harmful. It most commonly describes vehicle exhaust or factory emissions that pollute the air.
Usage
This term is widely used in environmental and automotive contexts. Native speakers commonly use it when discussing air pollution, car emissions, or industrial waste. It appears frequently in news about environmental protection and public health.
Examples
- 01这个城市的空气污染主要来自汽车废气。.The air pollution in this city mainly comes from vehicle exhaust.
- 02工厂必须安装设备来处理废气排放。.Factories must install equipment to treat waste gas emissions.
Characters
Common collocations
- 汽车废气automobile exhaust
- 排放废气to emit waste gases
- 工业废气industrial waste gas
- 废气处理waste gas treatment
Antonyms
Origin
The word combines 废 (waste/discarded) with 气 (gas/air) to literally mean 'waste gas.' It emerged as a standard term during China's industrialization to describe harmful emissions.