Milieu
Milieu (noun) /mɪˈljɜː/ US /miːlˈjɜː/
the surroundings and conditions in which someone lives and is influenced by – setting – environment – background – ambiance – atmosphere – locale – surroundings:
In that ethnographic and anthropological study, a systematic and longitudinal research has been carried out to cast more light on the social milieu of the indigenous people.