The previous USA document highlighted that more detailed assessment was required to determine the effect of the following pollutants from the sources identified below:
-Particulates (PM10) from a number of busy roads within Burton upon Trent
-Sulphur dioxide and nitrogen dioxide from Coors Shobnall Maltings in Burton upon Trent.
Hyder Consulting (UK) Ltd was appointed to undertake detailed computer dispersion modelling of particulate emissions from a number of busy roads in Burton upon Trent.
The dispersion model was used to calculate 2005 particulate values and also predict concentrations for 2010, at nearby sensitive receptors.
The modelled particulate concentrations were validated using local monitoring data.
This dispersion modelling showed no exceedences, or likely exceedences for any of the Government Objectives limits for particulates.
Since the previous Screening Assessment in 2000, Coors have had a series of reports conducted, which included dispersion modelling and on-site monitoring.
The conclusions of these assessments are that there are no predicted Objective exceedences for nitrogen dioxide or sulphur dioxide.
During the course of these assessments however, the short-term 24-hr Objective for particulates was identified as potentially being exceeded at nearby sensitive receptors.
It was therefore decided Coors would commission a three-month period of off-site monitoring in the vicinity of nearby sensitive receptors.
This monitoring was undertaken in July-October 2007 and concluded that there were no annual objective exceedences. In addition, although the 24-hr objective limit was exceeded on three occasions, this did not constitute a failure, since the objective allows up to thirty-five exceedences per year.
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