On 30 July 2007, the State Hermitage issued the following communiqué:

The State Hermitage Museum has made an announcement about internal sound levels during the Rolling Stones concert held on 28 July 2007 on Palace Square.

The State Hermitage Museum announces that during the Rolling Stones concert held on Palace Square on 28 July 2007, the sound levels were monitored and that these levels remained within health guidelines inside the palace halls, but outside these guidelines were exceeded.
The recommended permissible volume for both confined and open spaces should not exceed 85 decibels.