Mechanisms influencing the BFR distribution patterns in office dust and implications for estimating human exposure

► Distribution patterns of BFRs in office dust were investigated. ► Influencing factors on distribution patterns of BFRs were discussed. ► Selection of dust fraction is influential on BFR analytical results, especially for deca-BDE. ► Human exposure will be underestimated if non-adherent larger particles are included for analysis. ► It is recommended that hand dust samples can be synchronously sampled when sampling indoor dust.