This study reports on the polybrominated diphenyl ether (PBDE) atmospheric dynamics in the dense urban environment of downtown Paris (France). Eight PBDE congeners (BDE-28, BDE-47, BDE-100, BDE-99, BDE-154, BDE-153, BDE-183 and BDE-209) were simultaneously analysed in bulk and wet atmospheric deposition, as well as in ambient air (gaseous/particulate phases), twice a month over a 12-month period (May 2008–May 2009). The total air concentration of Σ 8PBDEs ranged between 12 and 185 pg m−3, and the seasonal variations of PBDE levels were controlled by air temperature (except for BDE-209). Regarding bulk deposition, Σ 8PBDE flux was in the range 5–94 ng m−2 day−1, and it was positively correlated with atmospheric particulate phase PBDE concentrations. Meanwhile, the measured wet deposition flux of Σ 8PBDE ranged between 2 and 24 ng m−2 day−1, and its median contribution to bulk deposition was 39% only, which highlights the importance of dry deposition.