noise survey Articles

  • Is a background noise survey worth doing? - Case Study

    As a plant owner or designer you will logically try to keep construction costs down wherever possible. So noise control features can easily be sidelined as an “optional extra” to be added later if the need arises. You might also be confident a new industrial plant will comply with all regulations on completion, but that doesn’t mean a future neighbour won’t complain about ...


    By Innova Global Limited.

  • A survey of wheel tyre cavity resonance noise

    Noise, vibration, and harshness (NVH) are synonymous with quality factor in automotive engineering. This quality factor is influenced by the internal noise such as engine noise, and external noise such as aerodynamic noise and tyre–road noise. Whereas many studies have been done to identify noise sources and reduce the noise and vibration transmission from the engine and aerodynamic sources to ...


    By Inderscience Publishers

  • Noise Measurement

    Definitions Threshold and criterion levels The threshold level is the A-weighted sound level at which a personal noise dosimeter begins to integrate noise into a measured exposure. For example, if the threshold level on a sound level meter is set at 80 decibels (dB), it will capture and integrate into the computation of dose all noise in the employee's hearing zone that equals or exceeds 80 dB. ...


  • I Need A Noise Dosimetry Survey. What Do I Do?

    Employees in noisy workplaces are at risk of permanent damage to their hearing. For a noisy workplace, establishing a Hearing Conservation Program is imperative to protecting both employee health and employer liability. Where to start? Sometimes, determining the appropriate type of protection for each employee can be tricky, because individual employees may have varying levels of exposure to ...

  • Methods for Removing Signal Noise from Helicopter Electromagnetic Survey Data

    A geophysical analysis was conducted over the abandoned T&T subsurface mines and portions of the Muddy and Roaring Creek watersheds in northeastern Preston County, West Virginia. The data were collected using helicopter-borne measurements of frequency-domain electromagnetic (FDEM) conductivity (390, 1555, 6254, 25,800, and 102,680 Hz). Noise was a significant issue in the lowest frequency EM ...


    By Springer

  • Environmental Noise

    Introduction The ability to hear sounds is a sensory function vital for human survival and communication. However, not all sounds are wanted. 'Unwanted sounds', for which the term 'noise' is normally used, often have their origin in human activities (mainly transport, industry and households). This article addresses environmental noise ­ also referred to in the scientific literature as ...

  • 5 Tips for Building Your Company EHS Culture in a Low-Risk Environment

    Environment, health and safety (EHS) programs can do more for your company than simply checking off compliance boxes. EHS can also be an integral part of your company’s culture, demonstrating to employees that their happiness, health and safety is a priority—leading to more productivity and a more proactive approach to minimizing risk. Even in low risk environments, like offices or ...


    By Antea Group - USA

  • Noise Pole Power Station Noise case study

    Equipment Summary Invictus Environmental Noise Pole Noise-Hub Noise Management Software Before the Cirrus System was installed we could never investigate noise complaints properly ...


    By Cirrus Environmental

  • Occupational noise - Noise control at the workplace starts with measurements

    We often automatically turn to personal protective equipment in order to restrict noise. Yet there are other solutions. NoiseAtWork software enables us to map the situation quickly. It has been scientifically proven that exposure to noise which exceeds 80 dB(A) causes hearing loss, but lower levels can also cause physical and mental complaints. Noise also has a disruptive effect on communication ...


    By Softnoise GmbH

  • Deep utility survey application

    Introduction Deep utility surveys are in most cases a nightmare to any GPR operator. The fact is that most of the utilities are in urban areas where there is a high amount of EM noise sources. Usually it is a complex net of entangled utilities, buried trenches and shafts that needs to be recorded and interpreted. The deeper one has to go, the harder it is to collect good quality data ...


    By Geoscanners AB

  • Comprehensive linguistic steganography survey

    Contemporary steganography approaches suffer from many serious deficiencies; generally, they attempt to hide data as detectable and suspicious noise in a cover that is assumed to look innocent. In addition, steganography approaches found in literature have focused on how to conceal a message and not on how to camouflage its transmittal. This paper presents a comprehensive survey that focuses ...


    By Inderscience Publishers

  • Measuring Road Traffic Noise

    As part of an overall measurement programme to monitor road traffic noise in Århus (Denmarks second largest city), the Local Authority set up a noise measurement station on one of the major approach roads to Århus Harbour. This noise measurement station continually measures noise levels and can give a round-the-clock picture of noise level variations. Like most other districts, Århus Local ...

  • Noise Mapping in Lille

    Lille, with a population of 1091 million inhabitants is the 4th largest agglomeration in France after Paris, Lyon, and Marseille. Situated at the heart of a network of 464 km motorways connecting six European cities (Brussels, Bonn, the Hague, London, Luxembourg and Paris), the metropolis of Lille also has the densest railway network of France after Paris. Pascal Thomas and his team of 8 ...

  • Former Ordnance Survey – Case Study

    Project Highlights Envirochem carried out environmental perimeter monitoring during the demolition of the former Ordnance survey site in Southampton. Airborne Dust, noise and vibration levels were all monitored using state of the art equipment. Project Description ...

  • In-depth workplace noise risk assessments

    Don’t miss a thing with a custom-made noise measurement kit Pulsar Safety Professional System: the-all-in one solution to noise measurement Pulsar Instruments’ Safety Professional noise measurement system offer Safety, Health, Environmental and Quality (SHEQ) experts a custom-made solution for resolving their complex workplace noise risk ...


    By Pulsar Instruments plc

  • Noise at Work Regulations: 10 Years On

    Doesn’t time fly? It’s already been 10 years since Control of Noise at Work Regulations were introduced in the UK. But have you been following the legislation correctly? Here’s an overview of what the Noise at Work Regulations mean and some common mistakes you should be avoiding. Considering that legislation to limit ...


    By Cirrus Environmental

  • An Industrial Noise Map is Basic to Hearing Conservation

    An Industrial Noise Map Is Basic to Hearing Conservation In the U.S., OSHA has set regulations on worker noise exposure. The usual measurement method is to use a portable noise dosimeter attached to a worker that measures noise exposure as the person moves about the work area. However, this does nothing to identify the source and location of the noise. When conducing a noise survey, a noise ...

  • Aircraft noise valuation studies and meta-analysis

    Aircraft noise has a negative impact on consumer welfare in the regions affected. One of the consequences is that property values decrease. This paper gives a survey of studies from various countries on the relationship between the volume of aircraft noise and the values of dwellings. A meta-analysis is carried out to arrive at a synthesis of these studies and to find factors that explain the ...


    By Inderscience Publishers

  • Former Ordnance Survey (2) – Case Study

    Project Highlights Envirochem carried out environmental perimeter monitoring during the demolition of the former Ordnance survey site in Southampton. Airborne Dust, noise and vibration levels were all monitored using state of the art equipment. Project Description ...

  • British American Tobacco Survey – Case Study

    Project Highlights Envirochem carried out environmental perimeter monitoring during the demolition of warehouses at the British American Tobacco site in Southampton. Airborne Dust, noise and vibration levels were all monitored using state of the art equipment. Project ...

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