Noise Pollution Articles

  • A holiday from noise pollution

    Tourism is one of the fastest growing economic sectors in the world and offers significant benefits, but among the many challenges the industry faces is protecting the local population, environment, and the travellers themselves, from excessive noise.  The modes of transport (especially planes and cars) and mass arrivals at airports, railway stations, and ports and harbours, mark just the ...


    By SoundPLAN International LLC

  • Bespoke noise protection: AERZEN relies on the advantages of reactive silencers

    With reactive silencers, AERZEN reduces the noise emissions on the discharge side of its screw compressors, positive displacement blowers, and rotary lobe compressors. The innovative concept of these reactive silencers is superior to classic dissipative silencers in many respects. The sound waves developing on the discharge side of a Delta Screw compressor made by AERZEN can reach 170 to 190 dB. ...

  • Seeking Clarity in Noise

    Environmental noise regulation can be frustrating. The noise limits, applicable measurement metrics, assessment methods and level of enforcement vary a lot by region and jurisdiction and rarely do they all align. Historically, noise emitters and sensitive receivers could afford to use distance to separate themselves. Consequently, environmental noise laws were first developed in regions with high ...


    By Innova Global Limited.

  • Traffic Noise Mapping in Chile

    Against this backdrop of economic change, a two-year study got underway across three Chilean cities led by the Univ. Austral. and was supported by the Chilean Ministry of the Environment. Academically titled: “Development and analysis of noise maps of three urban agglomerations using modeling software”, the study concentrated on the Chilean cities of Coquimbo – La ...


    By Cirrus Research plc

  • NoiseTools for Noise Nuisance Users

    At Cirrus, we’ve always looking for ways to enhance our products to better help our customers meet their noise measurement needs. The NoiseTools software that you are using with your Cirrus Noise Nuisance equipment is always being updated and enhanced with new functions and features all the time. At regular intervals, we will release a new version which contains these updates so to make ...


    By Cirrus Research plc

  • How listening to the ocean can help reveal environmental damage

    In 2013, Katherine Indeck listened to recordings of sounds made in a channel between the Gulf of Mexico and Tampa Bay, Florida. Some of the audio files had been collected in 2005 during an unusually severe red tide, a bloom of toxic algae that killed fish, dolphins and sea turtles. Other recordings were made after the ecosystem began to recover. During the recovery years, Indeck could hear sounds ...


    By Ensia

  • New test, new best practice to reduce hearing damage risk

    The availability of this new test will have a dramatic effect on the management of hearing loss prevention programmes… New technology has become available that provides companies with data that they can use to check the real world performance of their hearing conservation programmes very quickly and very easily. It is a development of otoacoustic emission ...

  • How to achieve triple bottom line sustainability benefits on airport runway projects

    CH2M delivers best-in-class sustainable approaches for airport clients worldwide by constantly seeking opportunities to apply sustainable development and design concepts. From planning through plowing, CH2M is leading the development of the most sustainable runway projects in the U.S. Through our life-cycle approach, airport clients have experienced significant benefits such as ...


    By CH2M Hill Companies, Ltd.

  • Case study - Use of the Nor848A acoustic camera on wind turbines

    The acoustic camera system Nor848 is a powerful tool to investigate noise sources. In realtime you listen to a beamformed audio signal so that you can hear individual sources one by one. Immediately you can identify the strongest over all noise source in a multisource environment, and you can do the same analysis for single frequencies, 1/3 or 1/1 octave bands or any given frequency range. This ...


    By Norsonic AS

  • The Noise Doctor’s Review of 2016

    2016 is rapidly coming to a close and 2017 is almost upon us. New Year is always a time for reflection. With this in mind, I reviewed all the NoiseNews updates from 2016 and can now reveal the top 10 blogs that aim to educate, inform and entertain. Are you sitting comfortably? Then let us begin. Top 10 Blogs of 2016 10. The Big Bang Theory: What You Really ...


    By Cirrus Research plc

  • Netherlands’ Mobile Emergency Pumps Provide Rapid Flood Response

    The Western European nation has 20 mobile diesel-driven pumps on standby, ready to assist in national and international emergencies. One of the smallest and most densely populated countries in Western Europe, the Netherlands has nearly 10 million residents who live and work below sea level. Without active water management and primary flood defenses, ...


    By BBA Pumps

  • 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.

  • What answers has the Government found to the environmental hurdles facing a third runway?

    With the Government now having officially announced its support for a new runway at Heathrow, despite having slashed the Airports Commission’s claim of a £147 billion benefit to the UK by almost 60% (referring instead ...


    By A.E.F. S.r.l.

  • Safeguarding neighbours from construction noise

    The project to modernise Twickenham railway station would affect residential properties standing only a few feet away from the station. Over the past few years, regular improvement works on the tracks have caused disturbance to residents, who already live with high background noise, and the area has a history of frequent noise complaints.  The authority wanted to make sure that ...

  • Utilising the Strengths of Different Sound Sensor Networks in Smart City Noise Management

    City noise management involves a variety of disciplines such as planning, mapping, action plans, policing, complaint management, abatement and public awareness. With the wide availability of mobile broadband internet access coupled with low cost noise sensors, many authorities and researchers are eager to use sound sensor networks for these tasks. A sensor network can be defined as a group of ...

  • NoiseNews Round-Up: Noisiest Dogs, Pokémon Go, Cinema Snacks & Opera

    Yes, it’s me – The Noise Doctor. I’m back with the NoiseNews Round-Up. I’ll be bringing you some of the latest and quirkiest noise-related news stories from around the world. In this edition, I’m looking at the top 10 noisiest dogs, Pokémon Go, cinema snacks and opera. Let’s get started. Ssssh! – Silent Snacks are Heading to the Big Screen at ...


    By Cirrus Research plc

  • Links between noise and air pollution and socioeconomic status

    Air pollution and noise pollution have a negative impact on all of society — but some groups are more affected than others. Lower socioeconomic status is generally associated with poorer health, and both air and noise pollution contribute to a wide range of other factors influencing human health. But do these health inequalities arise because of increased exposure to pollution, increased ...

  • What is an anechoic chamber and how quiet can it be?

    One of the things that we often talk about when we’re running our CPTC (Cirrus Product Training Courses) is how our hearing works and we often end up talking about how, if there’s no ambient sound, we can feel uncomfortable and can become disoriented very quickly. One of the best (or maybe the worst) places to experience this is in ...


    By Cirrus Research plc

  • Optimus and Invictus are the Classic Combination - Case Study

    Imagine a perfect summer’s evening with a 40-strong classical orchestra playing to an appreciative audience in a leafy green park. So far, so very English. Add in the fact the Park is in the heart of Lancaster city surrounded by thousands of homes and the orchestra is playing sets of the Hacienda’s classic 90s house music hits and you can understand the headache facing Acoustic ...


    By Cirrus Research plc

  • Mitigating the effect of weather on environmental noise measurements

    Many factors play a part when creating a reliable environmental noise assessment. This paper provides a practical look at the effect of weather conditions on sound levels to raise awareness of the importance of meteorology in noise measurements. It references requirements for measuring meteorology in BS-4142:2014 and compares them to legislation from other countries. It also covers how variations ...

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