NPC Online Library: Information on Levels of Environmental Noise Requisite to Protect Public Health and Welfare with an Adequate Margin of Safety. This document has been approved for general availability. It does not constitute a standard, specification, or regulation. For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price $2.10 Table of Contents NPC Online Library NPC Law Library NPC Noise News NPC Home The Congress included among the requirements of the Noise Control Act of 1972 a directive that the Administrator of the Environmental Protection Agency "...develop and publish criteria with respect to noise... " and then "publish information on the levels of environmental noise the attainment and maintenance of which in defined areas under various conditions are requisite to protect the public health and welfare with an adequate margin of safety.
" Not all of the scientific work that is required for basing such levels of environmental noise on precise objective factors has been completed. Foreword measurement of health and welfare effects has not yet arrived. Foreword-2 i ii Section 1 1. Environmental noise monitoring system. The present invention relates to the field of remote environmental noise monitoring. For airports and communities, it is useful to conduct medium-term (one to two week) continuous measurements of sound levels. At the present time, there are no sound level meters or systems that can do this type of monitoring at costs that are affordable for small regional airports and smaller communities. Existing monitors of this type cost in excess of $10,000, and are so complicated that only professional noise consultants can use them. Systems and methods herein provide for continuous measuring and recording of sound levels over the course of a one to two week period, in accordance with national and international noise measurement standards.
One method of monitoring environmental noise levels includes of detecting and converting sound waves into two identical analog electrical signals. The first signal is filtered to leave only A-weighted information. Step 114 is a decision. Step 118 is a decision. Noise Free America. NoiseNet. Acoustics.com. Acoustics.com is an alliance of educators, experts and design professionals dedicated to promoting the importance of acoustics in the architecture, design, construction and building communities, as well as to the general public.
We support and facilitate the integration of practical knowledge, smart design and innovative thinking and provide an essential online tool for acoustic related information and education. Our efforts are born out of concern for public health and safety and the integrity of architecture, design, construction and related industries. Our mission is to: Educate professionals on the importance of acoustics. Simplify the process of searching, comparing and specifying acoustic products. Provide reliable, accurate information to help professionals educate their clients. Acoustics.org. AIA Georgia. NRC Canada. NRC facilitates access to international R&D network for Canadian firms New innovation advantage for Canadian companies through access to technology, expertise, and markets in Europe and beyond. Digital technology adoption resources Improve your understanding of the link between digital technologies and productivity from actual technology adoption experiences that are featured in learning documents, videos and success stories.
NRC Success stories Take a look out how NRC's market-driven research, technology development and commercialisation support services help companies bring their product to the marketplace. NPC. AVNC Courses. Applied Acoustics.