Noise - Environmental Noise - Introduction
In this Section of the site Environmental Noise is considered. The main sections are
Read this section if you are "new" to noise; if not pick and choose from the menu. For noise professionals Statutory Nuisance and Weather should both be of interest. There are many other codes of practice for example entertainment and pub and club music noise assessment is covered by a draft code issued by the ioa which is no longer available on their website - although they may post you a copy.
In the near future we will be adding to the above content.
Factors Affecting Noise Impact
From the noise terms section you should understand both LA90 and LAeq; these factors are used to measure or represent the level of noise, in the following sections, but other factors, which cannot be measured with a meter, are also important when assessing whether disturbance is likely to be caused:-
Nature of noise
- Is the noise bland and easy to ignore? or
is the noise tonal and/or information rich drawing attention to itself? for
example traffic noise is easier to ignore than a baby crying.
Yet more factors could be added to this list, but it demonstrates that noise
standards have to take into account many factors. Also it tends to indicate that
it is difficult to use a standard developed for one type of noise when
considering a different type. For example 
industrial noise, but it has been (wrongly) used for clay target shooting, motor
bike scrambling and cockerel crowing.