Temporal evolution of the following dust characteristics in the 300 L_⊙ model 2: maximal dust grain size (top-left), dust growth rate (bottom-left), characteristic timescale of dust growth (top-right), and ratio of the characteristic timescale of dust growth to the grown dust drift timescale (bottom-right). Disk regionswhere dust growth is halted by the fragmentation barrier are filled with white color. The horizontal black dashed linesindicate the terminal time of the burst.