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Diffusion Tube Data

The link below is to an Excel spreadsheet which containing the diffusion tube monitoring data recorded by Hillingdon Borough Council. The analysis laboratory and preparation method used is as follows:

Parameter	Laboratory	Preparation Method
Nitrogen Dioxide	Casella Stanger	50% TEA in acetone
BTEX	Casella Stanger	Chromosorb 106

Please click on the link below to download the data in Excel format:
Diffusion Tube Monitoring results up to 2010

The spreadsheet of monitoring results will be updated every six months.