I recently read about the recommended amount of exposure time to high sound volumes: http://www.dangerousdecibels.org/education/information-center/decibel-exposure-time-guidelines/. Since I am in the Band at school I was somewhat concerned about if the sound intensity would be too much. Practice time is 120 minutes and our band has 3 tenor saxophones, 2 trombones, 2 trumpets, 5 alto saxes, 1 drummer, and 1 bari sax. I found that my own tenor comes to 83 decibels. What would the sound intensity be and would I have reason to be concerned?