Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Noise - EPA Protective Levels

The noise level should not exceed certain values to protect public health and welfare.

Sponsored Links

According to the Environmental Protection Agency - EPA - the Day-Night Sound Levels - Ldn - and the Equivalent Sound Level - Leq - should not exceed certain limits to protect public health and welfare.

Values that should not be exceeded:

Noise - EPA Protective Levels
EffectLevelArea
Hearing Leq(24) < 70 dBA All areas
Outdoor activity interference and annoyance Leq < 55 dBA Outdoors in residential areas and farms where people spend varying amounts of time in which quiet is a basis for use
Outdoor activity interference and annoyance Leq(24) < 55 dBA Outdoor areas where people spend limited time such as school yards playgrounds, etc.
Indoor activity interference and annoyance Leq < 45 dBA Indoor residential areas
Indoor activity interference and annoyance Leq(24) < 45 dBA Indoor areas with human activities such as schools, etc.
  • Outdoor yearly Ldn levels protect public health and welfare if they do not exceed 55 dB in sensitive areas as residences, schools, hospitals, etc.
  • Inside buildings yearly Ldn levels protect public health and welfare if they do not exceed 45 dB.

Note! To protect against hearing damage, one's 24-hour noise exposure at the ear should not exceed 70 dB.

Sponsored Links

Related Topics

  • Acoustics

    Room acoustics and acoustic properties, decibel A, B and C, Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity and sound attenuation.

Related Documents

Sponsored Links

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

Citation

This page can be cited as

  • The Engineering ToolBox (2004). Noise - EPA Protective Levels. [online] Available at: https://www.engineeringtoolbox.com/epa-protective-noise-level-d_720.html [Accessed Day Month Year].

Modify the access date according your visit.

close

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































9.19.12

Sponsored Links
.