Data for last 7 days:

Data LAFmax Time LAFmax LAFmin Time LAFmin Lnight Lday Levening LAF10 LAF90 LАden Report
2017-12-1269.0 dB09:16:1745.9 dB04:13:1951.1 dB53.6 dB50.2 dB0.0 dB0.0 dB57.7 dB
2017-12-1179.0 dB13:17:4938.5 dB01:04:1246.4 dB53.8 dB51.5 dB0.0 dB0.0 dB54.7 dB
2017-12-1078.9 dB07:46:3040.8 dB05:27:2951.6 dB55.8 dB47.9 dB0.0 dB0.0 dB58.7 dB
2017-12-0976.4 dB15:37:5441.5 dB01:56:0249.7 dB54.2 dB56.1 dB0.0 dB0.0 dB56.9 dB
2017-12-0875.5 dB18:56:1240.0 dB03:25:1248.9 dB54.3 dB57.1 dB0.0 dB0.0 dB56.4 dB
2017-12-0799.2 dB17:45:4541.8 dB02:59:0248.6 dB65.0 dB50.5 dB0.0 dB0.0 dB63.3 dB
2017-12-0691.2 dB10:29:2939.0 dB02:42:0146.4 dB59.4 dB50.6 dB0.0 dB0.0 dB58.3 dB

Burgas Municipality, Territorial Directorate Osvobojdenie

Name of the location: Burgas Municipality, Territorial Directorate Osvobojdenie

Address of the location: Burgas, Complex "Slaveikov"

The beginning of the noise monitoring: November 2010г.

Noise categorization: Location with predominantly impact of noise from road traffic, as well as accidental overflying airplanes, departing from the main routes (Warning: changed situation in the summer of 2013. - with regard to the new defined ATC routes for landing / takeoff / test flights).

Excerpt from the Official Strategic noise map for the region – with mapped loop "Road Traffic - conflict values for L24 > 65 dB(A), as well as loop for „Airline loop actual before Summer 2013”. – for LAmax > 85 dB(A):


Daily indicators:



  L24 = 58.3 dBL2424-hour noise level, which is an indicator of the noise associated with discomfort (defined according to the ”Law for protection against environmental noise”)

  Lnight = 48.9 dBLAnightnight noise level is the A-weighted equivalent noise level averaged over a long period of time, relative to all the night periods in a year, as specified in standard ISO 1996-2:1987

Defined period "night period: (according to the Regulation No 6 of 26 June 2006 for" performance of noise in the environment "): 23- 07 h


  Lday = 60.5 dBInformationLAdaydaily noise level is the A-weighted equivalent noise level averaged over a long period of time, relative to all the day periods during the year, as specified in the standard BDS ISO 1996-2: 1987;

Defined period "day period" (according to Regulation No 6 of 26 June 2006 on "indicators of environmental noise"): 07-19 h.


  Lev. = N/A dBInformationLAeveningevening level of noise is the A-weighted equivalent noise level averaged over a long period of time, relative to all the evening periods in a year, as specified in standard ISO 1996-2: 1987;

Defined period "evening period: (according to the Regulation No 6 of 26 June 2006 for" performance of noise in the environment "): 19 – 23 h.


  LAmax = 90.8 dBInformationLAmaxmaximum A-weighted sound level in decibels [dB (A)].
This is the maximum value of the current A-weighted noise level for a given time interval.


  LAmin = 39.8 dBInformationLAminminimum A-weighted sound level in decibels [dB (A)].
This is the minimum value of the current A-weighted noise level for a given time interval.


  LAF10 = N/A dBLAF10The level of noise along a curve and which has exceeded 10% of the measurement time (T).
The parameter is used as a measure of the noise from the main measured (released) source.


  LAF90 = N/A dBLAF90The noise level in a curve which is exceeded for 90% of the time of measurement (T).
The parameter is used as an indicator of the ambient (background) noise.