Translate the following English sentence to French:
"The airports were built haphazardly and no practical assessment of the environmental impact was made as the towns, or certain parts of them, grew up around the airport structures."
Les aéroports ont été construits n' importe comment et les villes - ou certains de leurs quartiers - se sont développées autour des structures aéroportuaires sans évaluer concrètement l' impact environnemental.