This is the 5232nd most frequent Portuguese word.
poluição
Pollution; the introduction of harmful substances or elements into the environment.
Here, 'poluição' refers to environmental contamination related to air quality.
A poluição do ar na cidade está aumentando.
Air pollution in the city is increasing.
In this sentence, 'poluição' pertains to contamination of water bodies.
O governo implementou medidas para reduzir a poluição nas águas.
The government implemented measures to reduce water pollution.
Here, 'poluição' is used to describe sound-related disturbances and contamination.