Spatial distribution of change in modelled atmosphere PAHs concentration. The spatial distribution patterns of change in atmospheric concentrations (ng m⁻³) of (A) 16 PAHs, (B) LMW PAHs, and (C) HMW PAHs, when the temperature rises 4°C under the RCP8.5 scenario. Green lines indicate the provinces and cities where the “2 + 26” cities are located, including Beijing, Tianjin, Hebei, Shanxi, Shandong, and Henan. The spatial distribution patterns of percentage change of atmosphere concentrations (%) of (D) 16 PAHs, (E) LMW PAHs, and (F) HMW PAHs, when the temperature rises 4°C under the RCP8.5 scenario. Data from Hainan and Taiwan are unavailable so that Hainan and Taiwan are uncolored in all the maps.