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October 2006

October 2006. Project Aims related to Monitoring and QA/QC. Overall Aim To assess the quality and variety of air quality data collected across Scotland and evaluate its compatibility Technical Requirements

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October 2006

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  1. October 2006

  2. Project Aims related to Monitoring and QA/QC Overall Aim • To assess the quality and variety of air quality data collected across Scotland and evaluate its compatibility Technical Requirements • To explore options for an automatic interrogation systems for collecting non-continuous air quality monitoring data from selected Scottish local authorities • To provide QA and QC procedures for capturing and handling air quality data and advising local authorities and others on these issues

  3. Presentation Overview • Availability of Air Quality Data in Scotland • Comparability of Air Quality Data in Scotland • Automatic integration of sampler data • QA/QC procedures – covered in March seminar

  4. Non - automatic data • The web based diffusion tube data collection system is up and running • 19 Scottish LAs already use this system

  5. UK Network Sites in Scotland

  6. National Network Measurements • Few Automatic Sites • 14 sites • Large number of pollutant species • 4 inorganic gases (CO, NO2, SO2 and ozone) • Particles PM10 and PM2.5 (8 new Partisol Monitors for Scottish Executive) • 26 organic compounds (including benzene and 1,3-butadiene) • 34 PAH compounds • 22 metallic species (both airborne and deposited) • ammonia and nitric acid and a number on anion and cation species in rainwater • Some data only available in reports and network contractors databases

  7. Automatic Sites in Scotland • Data collected automatically by telemetry • Proven technologies and procedures • Highly reliable process

  8. Local Authority Automatic Sites:Results of Scottish Executive Questionnaire in 2005 This was the situation in March 2006 Situation as of March 2006- • 32 Scottish Local Authorities • 8 no automatic monitoring • 19 LA automatic sites in 8 LAs • 150 NO2 diffusion tubes – • probably lots more We will be contacting Local Authorities to update the data as part of the Database Project

  9. LA Automatic Stations in Scotland • How many ? 82

  10. LA Diffusion tube sites in Scotland • How many ? 834

  11. Local Authority Data • Large number of Monitoring Stations • Focuses on Air Quality Strategy Pollutants • How comparable are all these data?

  12. How comparable are the data? • 14 site are National Network • 20 are Netcen Calibration Club • All sites have likely been used for Review and Assessment • However, for a comparable Scottish dataset, we recommend that a programme of harmonisation is required

  13. Harmonisation of Scottish Air Quality Data • Independent audit of every site • Check of analyser operation • Check of calibration gas standards • Regular data checks • Common site operational procedures in a “Site Operation Manual” and training • Longer term data checking and adjustment (ratification)

  14. PM episode 7 –12 May 2006

  15. Additional Scottish Data for Episode Analysis

  16. Summary • Scottish Executive Database successfully developed • With advanced web presence being finalised • It includes both National and additional LA data • There is still more LA data available, however • There is a need for data to be harmonised throughout Scotland

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