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Pollutant in Irish (Truailleán): Meaning, Pronunciation, Usage

The Irish for pollutant is truailleán, a masculine noun (plural truailleáin).
Updated October 2026Report a mistake

How to say “pollutant” in Irish

Irish:
truailleán
English:
pollutant
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“TROO-uh-lyawn”  /ˈt̪ˠɾˠuəl̠ʲaːnˠ/
Various forms
Plural:
truailleáin (pollutants)
Genitive singular:
truailleáin, an truailleáin (e.g. leibhéal an truailleáin, level of the pollutant)
Genitive plural:
truailleán, na dtruailleán (e.g. astaíochtaí na dtruailleán, the emissions of the pollutants)

What does “truailleán” mean?

pollutant
A substance that pollutes or contaminates air, water or land.Also: contaminant, polluting substance.

“Truailleán” with the article

The plural of pollutant in Irish is truailleáin. Here is truailleán after the article (an t-alt), in the singular and the plural.

an truailleán
the pollutant
No change after an
na truailleáin
the pollutants
Plural: no change after na

“Truailleán” in a sentence: Irish examples

Common Irish sentences using truailleán, the Irish word for pollutant.

Is truailleán contúirteach í an luaidhe.
Lead is a dangerous pollutant.
Fuarthas an truailleán san abhainn inné.
The pollutant was found in the river yesterday.
Tá truailleáin éagsúla san aer sa chathair.
There are various pollutants in the air in the city.
Rinneadh tástáil ar leibhéal an truailleáin.
The level of the pollutant was tested.
Ní mór astaíochtaí truailleán a laghdú.
Emissions of pollutants must be reduced.
Scaoileann an mhonarcha truailleáin isteach sa loch.
The factory releases pollutants into the lake.
Tá an truailleán sin i bhfad ródhíobhálach.
That pollutant is far too harmful.

Other nouns in Irish

More everyday Irish nouns to learn next.

Pollutant in Irish: frequently asked questions

What is the Irish for pollutant?

The Irish for pollutant is truailleán (pronounced “TROO-uh-lyawn”). It’s a masculine noun and the plural is truailleáin.

How do you pronounce truailleán in Irish?

Truailleán is said like “TROO-uh-lyawn” (IPA /ˈt̪ˠɾˠuəl̠ʲaːnˠ/).

What is the plural of pollutant in Irish?

The plural of truailleán is truailleáin; with the article, na truailleáin means “the pollutants”. The genitive plural is truailleán, as in astaíochtaí na dtruailleán (the emissions of the pollutants).

Why does truailleán change to thruailleán or dtruailleán?

Irish changes the start of some words after certain words. After mo (my) truailleán becomes mo thruailleán (lenition), and after ár (our) or i (in) it becomes ár dtruailleán (eclipsis).

What is the difference between 'truailleán' and 'truailliú'?

'Truailleán' is the substance that pollutes, a pollutant, while 'truailliú' is the process or state of pollution.

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