For example, the number of particles with size 5 μm from 1.3 × 107 (Number/mL) at 30 min declined to 2.1 × 106 (Number/mL) at 120 min, while the number of particles with size 25 μm increase from 2.1 × 106 (Number/mL) at 30 min to 8.1 × 106 (Number/mL) at 120 min. From Fig. 5 showing particle counts as a function of time it is concluded that growth of TCA is dominated by agglomeration.