本研究基于“自上而下”的方法，结合现有的地面观测数据、化学传输模式和多元线性回归模型，很好地表征了近年来中国东部高污染城市群BC排放的变化。初始排放清单和湿沉降对结果的影响较小。融合更多的地面观测结果，并充分考虑每个站点的空间代表性，得到的“自上而下”校验结果更好。
       祝贺赵雪芬！

   This work captured the changes in black carbon (BC) emissions from tightened pollution controls in a city cluster in eastern China through a top-down approach that incorporated available ground observations, chemistry transport model and multiple regression model. The uncertainty from a priori emission input and wet deposition was evaluated to be moderate. More ground measurements with better spatiotemporal coverage were recommended for constraining BC emissions effectively.
    Congratulations to Xuefen Zhao!

  The bottom-up and top-down estimates of BC emissions for southern Jiangsu for selected months.