The data from the air monitors is downloaded and published in graph format
Recent advances in technology have made available a range of sophisticated, portable devices that can perform these functions. Emission-Watch uses instruments manufactured by Turnkey Instruments Ltd in Northwich, Cheshire. The placing of such machines around the point source to be monitored, takes in to account not only manufacturers recommendations and the location of residential areas, but also the best available air-models of wind flows around the plant.
Measurements are taken continuously every 15 seconds and then calculated to 15 minute averages for ease of data handling. This data is then downloaded via a mobile telephone network in to our central computer and stored.
We are currently recording wind speed and direction, the total particulate burden, particulates below PM10, below PM2.5 and also below PM1.
In addition these machines collect particulate matter from the air on to a pre-weighed filter. These filters are changed regularly according to a strict protocol and sent to TES Bretby for analysis. TES Bretby is a large, well recognised and fully accredited laboratory. The results of the filter analysis are placed on permanent record.
Emission-watch has and will consult eminent scientists as to how the particles captured by the filters should be analysed. At present they are analysed for 18 heavy metals plus sodium, potassium and uranium, total organic matter, and also for volatile organic compounds. Future analysis can be varied to cover different conditions and other recommendations.
Emission-Watch has decided that the results of their monitoring and filter analysis will be kept as a permanent archive for environmental and medical research.
View our graphs section.
View our analysis section.
