Introduction:This self-learning tutorial is intended to help you learn about the determinants of air quality, using UK examples of actual air quality data, and to give some guidance as to the understanding of these data. It also provides some indication of why an understanding of air quality is important for Environmental Health, i.e. the implications for human health.
This tutorial is meant to complement other forms of learning about this
subject area, and there are three parts to this:
You should try coming back at different times of the year to gain the most benefit out of this part of the tutorial series. If, on returning to this page, you find that the images are out of date, please exit from this page, clear the memory in your cache, avoid using an external cache, and then return to this page - the latest available images should then load.
1 and 2
(see above) by enabling you to learn from tomorrow's Air Quality. It therefore
has the following learning objectives:
Tomorrow's air quality:Be guided by what you have learnt so far, in tutorials 1 and 2. Then consider the factors which are likely to make tomorrow's air quality different from today's:
Are tomorrow's emissions at your location, or the locations about which you are interested, likely to be more or less than today's e.g if you are interested in an urban area - is traffic likely to be higher or lower?
Now consider tomorrow's weather conditions - are they likely to favour high, or low concentrations? You may access a 24 hour weather forecast from the Met Office. Unfortunately the Met Office is somewhat limited in its free on-line information, since you may be particularly interested in more detail in the wind conditions in a particular locality. You may wish to look at a better UK weather map instead . Such an image would show the wind speed and direction, temperature, and isobars etc forecast for the British Isles. You may look one up in today's newspaper or try to access one online.
|Now comes the opportunity to match your UK Air Quality predictions
for tomorrow with the official version. (But first you may need to remind
yourself about Air Quality Bands
for data from the UK Dept of the Environment etc.)
The accompanying image shows Tomorrow's Air Quality Forecast for the UK. How does it compare with your expectations? The chances are that the quality will be labelled as 'Very Good', but if it is not, can you find an explanation?
Beyond tomorrow's air quality:
Other questions...Some of your questions may have been answered, but probably not all. What exactly is 'very good' in terms of air quality, especially when a mixture of pollutants is concerned? Is it good enough?... for most people?... for everybody?
Work is in progress to adapt teaching material that answers these questions, or to provide links to other sites which do.