exhaust gas
das Abgas, die Abgase
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exhaust gas
The gaseous waste product produced during combustion in engines, heating systems, or industrial plants. Exhaust gases are often harmful to the environment and to health.
Alte Autos stoßen oft zu viele schädliche Abgase aus.
Old cars often emit too many harmful exhaust gases.
| gender | neuter das |
|---|---|
| plural | die Abgase |
| genitive | des Abgases |
| singular | plural | |
|---|---|---|
| nominative | das Abgas | die Abgase |
| accusative | das Abgas | die Abgase |
| dative | dem Abgas | den Abgasen |
| genitive | des Abgases | der Abgase |
The article changes with the case; it is shown in colour.
'Abgas' is composed of the prefix 'ab-' and the noun 'Gas' (gas). The prefix 'ab-' here expresses that something goes away or is a waste product. So it is literally a 'gas that goes away.'
Die Industrie muss ihre Abgase filtern.
Industry has to filter its exhaust gases.
Although the singular form 'das Abgas' exists, the word is almost always used in the plural, 'die Abgase' (exhaust gases). This is because combustion typically produces a mixture of different gases.
In vielen Städten ist die Belastung durch Abgase zu hoch.
In many cities, pollution from exhaust gases is too high.
Common verbs used in connection with exhaust gases are 'ausstoßen' (to emit), 'produzieren' (to produce), or 'reduzieren' (to reduce). Typical adjectives are 'schädlich' (harmful), 'giftig' (toxic), or 'sauber' (clean).
Moderne Katalysatoren helfen, den Ausstoß schädlicher Abgase zu reduzieren.
Modern catalytic converters help reduce the emission of harmful exhaust gases.
exhaust
Both words belong to the area of vehicle emissions, but they do not mean the same thing. „Das Abgas“ is the gaseous product of combustion, whereas „der Auspuff“ is the device that directs this gas outside. Use Abgase when talking about the emitted air, and Auspuff when talking about the vehicle part.
An dieser Kreuzung riecht man die Abgase der vielen alten Autos.
You can smell the exhaust gases from the many old cars at this intersection.
Der Auspuff unseres Autos ist laut und muss repariert werden.
Our car's exhaust is loud and needs to be repaired.
