Air pollution levels have been monitored in the UK for over 100 years, however, it has really only been in the last 25 years that the technology has been available to measure air pollution on a real-time basis. There are several reasons why it so important to measure air pollution:
To ensure that long-term goals and targets to reduce levels of air pollution are being met (i.e. National and EU Air Quality Objectives)
To provide information to the general public as to how good or bad the air quality is in their locality (as provided by this website).
To ensure compliance with limit values, particularly for industrial plants that are set strict emission limits by the Environment Agency.
To be considered alongside planning applications for new roads, waste incinerators, out-of-town shopping centres etc.
There are many ways of calculating the levels of air quality in an area - this can be done by estimating the rates of emissions from sources such as cars, housing estates and factories etc. However, in order to verify these calculations and get up-to-the-minute information on air quality, it is essential to measure air quality with sophisticated instrumentation such as that designed and supplied by Enviro Technology Services.
Enviro Technology has established this website to enable the general public and all other interested parties to look at the levels of air pollution in the Stroud area with hourly updates and daily, weekly and monthly graphs.