
Inflow
Physical Movement
Inflow often denotes physical entry, like water entering a reservoir.
The dam controls the inflow of water into the lake.
Quantity Emphasis
Emphasizes the quantity — usually substantial — when describing the movement.
The inflow of donations after the broadcast was phenomenal.
Not Always Positive
'Inflow' can indicate problems if what's incoming is undesirable.
The city struggled with the inflow of pollutants into the river.