This is the 10453rd most frequent Spanish word.
contaminadas
"Contaminadas" means "contaminated" in English.
Here, 'contaminadas' is used as an adjective referring to the state of the water being polluted by external factors.
Las aguas del río están contaminadas por la industria.
The waters of the river are contaminated by the industry.
In this sentence, 'contaminadas' again functions as an adjective, describing areas affected by pollution or other degrading influences.
Algunas áreas urbanas están contaminadas debido a la falta de políticas adecuadas.
Some urban areas are contaminated due to the lack of adequate policies.
Here, 'contaminados' refers to the food that has been tainted or made unsafe, illustrating its usage to describe a condition of being impure or unhealthy.