Data for last 7 days:

Data LAFmax Time LAFmax LAFmin Time LAFmin Lnight Lday Levening LAF10 LAF90 LАden Report
2017-10-2079.5 dB17:44:4632.0 dB01:59:3743.2 dB54.1 dB49.5 dB0.0 dB0.0 dB53.6 dB
2017-10-1986.2 dB07:18:2933.8 dB00:32:2646.5 dB55.8 dB55.0 dB0.0 dB0.0 dB55.8 dB
2017-10-1881.2 dB13:59:1339.1 dB00:10:3948.3 dB54.9 dB51.9 dB0.0 dB0.0 dB56.3 dB
2017-10-1776.5 dB18:33:0236.2 dB00:06:3546.5 dB53.9 dB50.5 dB0.0 dB0.0 dB54.8 dB
2017-10-1680.7 dB16:35:4338.9 dB00:55:2448.5 dB54.9 dB51.8 dB0.0 dB0.0 dB56.4 dB
2017-10-1580.5 dB08:22:1639.2 dB05:03:5448.9 dB52.4 dB47.1 dB0.0 dB0.0 dB55.8 dB
2017-10-1478.0 dB10:29:4933.8 dB06:09:3345.6 dB52.5 dB48.0 dB0.0 dB0.0 dB53.7 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 = 57.7 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 = 48.3 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 = 52.3 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 = 79.1 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 = 39.3 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.