Data for last 1 month:

Data LAFmax Time LAFmax LAFmin Time LAFmin Lnight Lday Levening LAF10 LAF90 LАden Report
2026-09-13 98.5 dB 18:02:54 29.0 dB 04:05:48 76.3 dB 77.4 dB 77.1 dB 78.5 dB 71.6 dB 82.6 dB
2026-09-12 93.8 dB 18:14:10 38.5 dB 02:33:21 37.2 dB 77.4 dB 75.3 dB 78.3 dB 71.3 dB 82.6 dB
2026-09-11 100.7 dB 16:05:54 33.8 dB 02:24:47 36.7 dB 78.1 dB 75.5 dB 78.8 dB 71.0 dB 83.1 dB
2026-09-10 96.3 dB 16:08:31 31.1 dB 01:37:15 36.2 dB 78.0 dB 75.2 dB 79.1 dB 71.6 dB 83.0 dB
2026-09-09 97.0 dB 15:50:41 28.2 dB 02:37:29 36.6 dB 77.8 dB 75.3 dB 78.7 dB 70.9 dB 82.8 dB
2026-09-08 99.8 dB 13:24:09 28.5 dB 03:07:23 36.1 dB 78.1 dB 75.8 dB 79.3 dB 72.0 dB 83.3 dB
2026-09-07 102.0 dB 17:08:02 32.0 dB 01:34:26 37.1 dB 77.0 dB 75.5 dB 77.8 dB 71.9 dB 82.3 dB
2026-09-06 99.2 dB 14:19:09 34.8 dB 05:54:59 36.7 dB 76.6 dB 75.3 dB 77.8 dB 70.8 dB 81.9 dB
2026-09-05 100.4 dB 13:11:26 32.9 dB 04:24:31 37.2 dB 77.0 dB 75.6 dB 78.0 dB 71.7 dB 82.4 dB
2026-09-04 99.2 dB 17:17:03 33.6 dB 02:45:26 36.8 dB 78.0 dB 75.8 dB 79.0 dB 72.1 dB 83.2 dB
2026-09-03 93.7 dB 01:32:40 37.0 dB 03:35:11 36.6 dB 77.6 dB 75.0 dB 78.8 dB 71.3 dB 82.7 dB
2026-09-02 94.5 dB 16:18:04 38.1 dB 05:06:39 36.6 dB 77.8 dB 75.0 dB 78.8 dB 71.4 dB 82.8 dB
2026-09-01 95.6 dB 09:21:22 35.5 dB 05:11:40 36.2 dB 77.9 dB 75.4 dB 78.8 dB 72.1 dB 83.0 dB
2026-08-31 96.8 dB 17:03:20 34.0 dB 04:57:41 37.0 dB 77.3 dB 75.3 dB 78.4 dB 71.1 dB 82.6 dB
2026-08-30 94.0 dB 16:11:17 35.7 dB 05:41:20 36.8 dB 76.9 dB 75.5 dB 77.9 dB 70.3 dB 82.1 dB
2026-08-29 101.7 dB 17:30:22 32.0 dB 04:41:08 36.9 dB 77.4 dB 75.3 dB 78.3 dB 71.1 dB 82.6 dB
2026-08-28 96.5 dB 17:59:12 36.6 dB 04:05:35 36.7 dB 77.5 dB 75.5 dB 78.4 dB 71.8 dB 82.8 dB
2026-08-27 94.4 dB 09:50:25 35.9 dB 05:43:52 36.3 dB 77.9 dB 75.2 dB 79.0 dB 71.2 dB 82.9 dB
2026-08-26 103.5 dB 18:27:17 40.5 dB 05:47:51 37.1 dB 77.8 dB 75.2 dB 78.5 dB 70.6 dB 82.9 dB
2026-08-25 95.8 dB 05:14:39 37.1 dB 04:54:43 36.7 dB 77.5 dB 75.1 dB 78.3 dB 72.3 dB 82.7 dB
2026-08-24 95.1 dB 09:28:54 38.4 dB 03:32:25 36.8 dB 77.1 dB 75.1 dB 78.2 dB 70.8 dB 82.4 dB
2026-08-23 94.6 dB 15:06:50 40.4 dB 05:24:26 36.1 dB 76.6 dB 75.2 dB 77.6 dB 71.2 dB 81.9 dB
2026-08-22 98.9 dB 04:01:34 41.3 dB 05:06:05 36.7 dB 77.1 dB 75.4 dB 78.1 dB 72.9 dB 82.5 dB
2026-08-21 94.1 dB 15:35:35 39.0 dB 05:25:15 37.4 dB 76.7 dB 75.5 dB 77.8 dB 70.8 dB 82.1 dB
2026-08-20 96.7 dB 13:50:22 36.8 dB 03:42:29 36.2 dB 77.6 dB 75.5 dB 78.6 dB 71.4 dB 82.8 dB
2026-08-19 97.9 dB 07:37:11 35.3 dB 04:19:22 36.5 dB 77.7 dB 75.1 dB 78.7 dB 71.3 dB 82.7 dB
2026-08-18 96.0 dB 06:23:59 34.1 dB 04:05:34 36.5 dB 77.6 dB 75.7 dB 78.5 dB 71.8 dB 82.8 dB
2026-08-17 94.6 dB 12:48:30 32.2 dB 03:44:42 36.6 dB 77.3 dB 74.9 dB 78.5 dB 71.4 dB 82.5 dB
2026-08-16 98.1 dB 15:45:38 31.4 dB 03:29:17 36.5 dB 76.8 dB 75.8 dB 77.8 dB 71.3 dB 82.2 dB
2026-08-15 97.2 dB 12:46:04 31.6 dB 04:58:59 36.6 dB 77.3 dB 76.5 dB 78.4 dB 71.5 dB 82.7 dB
2026-08-14 96.3 dB 09:15:03 36.5 dB 05:55:05 36.7 dB 77.6 dB 75.4 dB 78.5 dB 70.8 dB 82.8 dB
2026-08-13 97.9 dB 10:24:01 42.1 dB 05:36:11 36.4 dB 77.7 dB 75.6 dB 78.7 dB 71.1 dB 82.9 dB


Mezdra - 40071, republic road I-1, km coordinates 160+506 , SN ESMU-16-066


Daily indicators:


  L24 = 82.6 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 = 76.3 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 = 77.4 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. = 77.1 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 = 98.5 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 = 29.0 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 = 78.5 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 = 71.6 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.