Aures - The Advanced Environment Noise Monitoring System -Leq(A) or new measurement technology?

摘要

Noise has become one of the major environmental pollutions in urban areas. To ensure that the environmental noise requirements are fulfilled, the noise emission from industries must stay within allowable limits under normal operating conditions. APL Systems has developed an automatic noise surveillance system "Aures" in close cooperation with Waertsilae Finland. The system includes Aures 2.0 -units and a server operating the Aures Analyzer -software. The possibility of long-term recording and analysing the surrounding noise in frequency domain has enabled this application to be one of the best available environmental noise surveillance systems in the market. The technology of frequency domain measurement and analysis has made it possible to understand better the components of certain noise source. With this feature, it is also possible to get more reliable measurement data when comparing to calculations. This paper questions present environmental legislation it's compatibility with the present needs of the different stakeholders including industry and public authorities. The paper also discusses presenting noise data in frequency domain instead of overall levels and especially why it should done so.