Noise measurement

Industrial Noise Measurement
Noise measurement of industrial source

The overall environmental noise pollution is generally a resultant of many different noise sources. Larger settlements are usually primarily affected by road or railway noise, but nearby facilities or premises (industrial sites, pub trade, agricultural work in smaller settlements) can add to the total noise level . The most astute method for evaluating the total noise level are in situ measurements performed with according equipment. Practically speaking, in situ measurements are the only means of in situ determining the sound power of noise sources in operation and a test of competence for the values determined by modelling. The equipment and other standards that have to be met, when performing noise measurements, are set by the Rules on the first evaluation and operational monitoring of noise sources and the conditions for its implementation.

When measuring noise, the general placement of equipment is near the fasade of noise sensitive buildings (residential buildings, healthcare facilities, educational institutions). When the dominant noise source varies in contribution (roads, railways, cyclical sources) long term measurements are required, if constant (transformers, air conditioning devices, etc.) short term measuring suffices.

In situ noise measurement

The former case is generally tackled with 24 hour long measurements, the latter can be adequately dealt with in 5-10 minutes. The total level of noise pollution in long term measurements is estimated directly from the results, short term measurements deduce it in combination with the operational characteristics of the source. Short term measurements are also employed to determine sound power at location when it isn’t significantly variable (fans, compressors, ventilation installations, transformers, etc.).

Epi Spektrum Ltd. has been executing measurements with proper equipment and authorisation ever since its inception. We have executed more than 1.000 measurements for varying purposes and developed our own program for data analysis compliant to standard ISO 1996-2 that also creates measuring reports compliant to standard ISO 7025.


Noise measurements of industrial plants and facilities

  • Talum d.d.: Operational noise monitoring of Talum d.d. (2000, 2003, 2006, 2009, 2012, 2015)
  • Silkem d.o.o.: Operational noise monitoring of Siklem d.o.o. (2000, 2003, 2006, 2009, 2012, 2015)
  • SIJ d.d.: Operational noise monitoring of SIJ d.d. – Metal Ravne (2011, 2015)
  • Impol d.d.: Operational noise monitoring of Impol d.d. (2012, 2015)
  • MLM d.d.: Operational noise monitoring of MLM d.d. (2006)
  • TDR d.d.: Noise map of the industrial zone in Ruše (2005)
  • Treibacher Schleifmittel d.o.o.: Noise map of the company Treibacher Schleifmittel d.o.o. (2007, 2010)
  • Noise map of the company Impol PCP d.o.o. (2009)
  • Noise map of the company Impol FT d.o.o (2009)
  • Noise map of the company Impol LLT d.o.o. (2008)
  • ZEDPS: A study on the impacts of distribution transformers on environmental noise pollution in Slovenia (2010)

Road traffic noise measurements

  • DARS d.d.: Operational monitoring of roads for the Motorway Company in the Republic of slovenia (2006, 2012)
  • Ministry of infrastructure: Operational monitoring of roads operated by the Slovenian infrastructure agency (2006, 2011, 2017)
  • DARS d.d.: First noise measurements on motorway sections:
    • Motorway A1 section Dragučova – Maribor Zrkovska – Maribor Ptujska (2010, 2011, 2013)
    • Motorway A1 Celje – Arja vas (2013)
    • Motorway A1 Vransko – Trojane – Blagovica (2013)
    • Motorway A1 section Unec – Postojna – Razdrto (2013)
    • Motorway A1 section Divača – Kozina (2013)
    • Motorway A1 section Črni Kal – Srmin (2013)
    • Motorway A2 section Hrušica – Lipce – Lesce (2013)
    • Motorway A2 section Kranj vzhod – Kranj zahod – Brnik – Vodice – Vodice – Brod
    • Motorway A2 section Malence – Šmarje Sap – Grosuplje – Ivančna Gorica – Bič (2013)
    • Motorway A2 section Kronovo – Dobruška vas – Drnovo (2013)
    • Motorway A4 section Dragučova – Lenart  – Sv. Tojica – Sv. Jurij ob Ščavnici – Vučja vas – Murska Sobota – Lipovci (2010, 2011, 2013)
    • Express road H2 Pesnica – Maribor Melje – Maribor Tezno  (2013)
    • Express road H4 section Nanos Razdrto – Podnanos – Vipava (2013)
    • Express road H5 section Škofije – Srmin (2013)