Contents
  1. Introduction
  2. Background to Study
  3. Objectives of Study
  4. Monitoring Methodology
    4.1        Selection of Sampling Locations
    4.2        Sampling Technique
    4.3        Exposure Sheets
    4.4        Duplicate Tubes & Travel Blanks
    4.5        Analysis of Diffusion Tubes
    4.6        Operational Difficulties
  5. Results
    5.1        Introduction
    5.2        Data Pre-processing
    5.3        Comparison of Diffusion Tube vs Chemiluminescent Measurements
    5.4        Comparison of Sheltered and Unsheltered Tubes
    5.5        Comparison of 2 v 4 Week Sample Exposure
    5.6        Estimates of Accuracy and Precision
    5.7        Implication of Study for Analysis of Diffusion Tube Measurements
  6. Conclusions
  7. References
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Study undertaken jointly by Stanger Science and Environment and the National Environmental Technology Centre.
Site prepared by the National Environmental Technology Centre, part of AEA Technology, on behalf of the UK Department of the Environment, Transport and the Regions