Data for last 1 month:

Data LAFmax Time LAFmax LAFmin Time LAFmin Lnight Lday Levening LAF10 LAF90 LАden Report
2019-08-22 0.0 dB 00:00:00 0.0 dB 00:00:00 74.4 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-21 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-20 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-19 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-18 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-17 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-16 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-15 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-14 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-13 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-12 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-11 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-10 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-09 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-08 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-07 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-06 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-05 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-04 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-03 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-02 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-08-01 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-07-31 0.0 dB 00:00:00 0.0 dB 00:00:00 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB 0.0 dB
2019-07-30 91.8 dB 09:26:04 32.5 dB 04:15:42 75.1 dB 75.8 dB 0.0 dB 76.9 dB 69.1 dB 0.0 dB
2019-07-29 95.3 dB 00:20:19 35.1 dB 04:17:18 74.6 dB 75.7 dB 73.7 dB 76.4 dB 70.4 dB 81.0 dB
2019-07-28 93.8 dB 11:21:29 32.0 dB 03:34:49 73.0 dB 74.0 dB 72.8 dB 74.9 dB 69.4 dB 79.3 dB
2019-07-27 95.0 dB 06:41:27 35.2 dB 01:57:16 74.3 dB 75.4 dB 74.0 dB 76.3 dB 70.2 dB 80.8 dB
2019-07-26 96.5 dB 09:40:36 31.3 dB 02:04:03 74.4 dB 75.6 dB 74.1 dB 76.3 dB 70.2 dB 80.8 dB
2019-07-25 92.1 dB 13:37:00 28.6 dB 04:56:20 74.3 dB 75.3 dB 74.2 dB 76.2 dB 69.4 dB 80.6 dB
2019-07-24 91.8 dB 17:47:10 32.8 dB 02:17:50 73.9 dB 75.3 dB 73.9 dB 76.3 dB 68.0 dB 80.3 dB
2019-07-23 96.7 dB 09:46:05 27.5 dB 03:24:34 73.9 dB 75.3 dB 73.5 dB 76.0 dB 68.9 dB 80.3 dB
2019-07-22 92.2 dB 04:12:15 27.9 dB 02:24:01 74.2 dB 75.3 dB 73.9 dB 76.1 dB 70.0 dB 80.6 dB


To automated count unit ID 3086: Route I-8, Kalotina - Sofia


Daily indicators:



  L24 = N/A 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 = 74.4 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 = N/A 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 = N/A 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 = N/A 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.