Levels, compositions, and gas-particle partitioning of polybrominated diphenyl ethers and dechlorane plus in air in a Chinese northeastern city

► A whole year HiVol air sampling was conducted in Dalian, China. ► Mean air concentrations (pg m−3) were104 ± 95 for ∑12PBDEs and 3 ± 6 for DP. ► KOA-based model was more suitable for predicting lower PBDEs than higher ones. ► The accuracy of predictions decreases along with decrease of temperatures.