Flame retardants (FRs) were detected in settle dust from homes and public places.
Organophosphorus flame retardants were detected at the highest concentration.
BDE-209, DBDPE and BEH-TEBP were the most abundant brominated flame retardants.
PCA permitted to identify the main sources and distribution of all FRs.
FR levels and profiles in the different places were consistent with their sources.