Structural noise pollution can happen by vibrations running through the earth and into the framework of the building as the foundation and framework of a building are anchored permanently to the ground using heavy duty anchor systems into concrete slabs.
For professional studios, floating floors are used to separate the ground from the floor of the studio itself, eradicating the potential for structural noise pollution. Thick rubber pads are used as the feet of the framework which act as shock absorbers for any vibrations running through the earth.
The seals around doors and windows are also a big culprit for noise pollution and effective means of sealing should be practiced. To detect more potential for noise pollution, you may run some practical methods of discovery by finding where inside sound seeps to the outside, for noise dilution is potential for noise pollution.