Why does a temperature inversion trap smog and prevent it from dispersing

This means that convection is less effective because the air above is already warmer, and so there is less mixing of air between altitudes. Since pollution is generally produced at ground level, temperature inversions can trap the pollution (e. g. smog) at ground level.

convection is less effective because the air above is already warmer, and so there is less mixing of air between altitudes. Since pollution is generally produced at ground level, temperature inversions can trap the pollution (e. g. smog) at ground level.