1. A space or place that lacks cleanliness; an area with dirt, dust, or other unclean materials
The factory workers complained about the dirty environment in the warehouse.
Os operários da fábrica reclamaram do ambiente sujo no armazém.
2. A setting characterized by unethical, corrupt, or morally questionable practices
He refused to work in such a dirty environment of corruption and bribery.
Ele se recusou a trabalhar em um ambiente sujo de corrupção e suborno.