WebJul 26, 2024 · In particular, Beijing-Tianjin-Hebei (BTH), the Yangtze River Delta (YRD), and the Pearl River Delta (PRD), the three major urban agglomerations located on the …
A gridded emission inventory of semi-volatile and intermediate ...
WebFeb 17, 2024 · Compared with YRD and PRD, BTH have been in a weak position for a long time. At present, there was an unreasonable urban hierarchical structure in BTH. It has obvious polarization in Beijing and Tianjin but insufficient development in secondary cities, at low level of integration. ENs changed around the two centers. WebMar 20, 2024 · The total S/IVOC emission was the highest in YRD, followed by the BTH, SC, and PRD regions. However, the S/IVOC emissions per unit area in PRD was largest, followed by those in YRD, BTH, and SC because of different economic development levels and regional land areas. Furthermore, the analysis of source contributions showed that … pottery world indoor fountains
observation-based perspective of winter haze days in four major ...
WebApr 2, 2024 · By 2024, the PM2.5 declines of BTH, YRD, and PRD exceeded the targets by two, three, and four times, respectively. However, the PM2.5 exposure risks in urban areas are 10–20 times higher than ... WebSep 26, 2024 · The BTH, YRD, and PRD urban megaregions are distributed from the north to south of the eastern coastal region and are the three largest megaregions with relatively long development histories . The BTH urban megaregion includes two municipalities directly under the Central Government, Beijing and Tianjin, and Hebei Province. ... WebJun 15, 2024 · Air pollution is principally found in dense urban areas such as the BTH and YRD regions (Gui et al., 2024; Han et al., 2024), so we took the BTH, PRD, YRD, GZP and NEM regions in the eastern region as key areas, counted the daily anomalies and average variation of O 3 and PM 2.5 in each key region under the different weather patterns … pottery world furniture