J Kentisbeer, S Leeson, H Malcolm, I Leith & J N Cape Mercury at the UK EMEP supersites Auchencorth Moss & Harwell The EMEP Supersites Google Earth, Google Inc. Site Characteristics: Auchencorth Moss Measurements Water-soluble gases + particles at PM2.5 & PM10 Black carbon PM2.5 NO/NO2 Meteorology (wind speed, dir’n., temp., RH, precip’n) Ozone PM2.5 and PM10 mass (daily) PM2.5 and PM10 mass (hourly) PAH (vapour and particle) Auchencorth Moss Harwell PAH (precipitation) TOMPS (air) Hydrocarbons (C2 – C8) Particle size and number Mercury (elemental) in air Mercury (speciated) in air (Auchencorth Only) Mercury (precipitation) Heavy metals PM10 (air) Heavy metals (precip’n) ECOC (weekly) OpenAir Package for R, NERC, Kings College London, Defra, University of Leeds Auchencorth - Summary Plots / Statistics 3.0 GEM ng m-3 3.0 2.0 3.0 1.0 3.0 0.0 PBM GOM, pg m-3 PBM GOM, This just needs to be white 2009-07 120 80 2010-01 2010-07 2011-01 2010-07 2011-01 2011-07 PBM 40 0 40 GOM 20 0 2009-07 2010-01 2011-07 White please OpenAir Package for R, NERC, Kings College London, Defra, University of Leeds GEM ng m-3 GEM ng m-3 GEM ng m-3 GEM ng m-3 Trends and Patterns OpenAir Package for R, NERC, Kings College London, Defra, University of Leeds GOM, PBM pg m-3 GOM, PBM pg m-3 GOM, PBM pg m-3 GOM, PBM pg m-3 Trends and Patterns OpenAir Package for R, NERC, Kings College London, Defra, University of Leeds PBM & GOM – Influences & Sources OpenAir Package for R, NERC, Kings College London, Defra, University of Leeds Google Earth, Google Inc. GEM - Influences and Sources N S 140 1.6 120 1.5 100 1.4 1.3 80 1.2 40 1.1 20 1 GEM OpenAir Package for R, NERC, Kings College London, Defra, University of Leeds Google Earth, Google Inc. Point source data, S. E. P. A. (SEPA), Scottish Pollutant Release Inventory (SPRI), http://www.sepa.org.uk/air/process_industry_regulation/pollutant_release_inventory.aspx, Accessed 20/05/2013, 2013. 60 White please E 1.7 White please Wind Spd. 25 20 15 10 5 W Kg Hg Long-range influences NOAA HYSPLIT Model - Air mass back trajectory cluster analysis Cluster temporal variations 2.0 White 1.6 1.2 C1 C2 C3 C4 C5 OpenAir Package for R, NERC, Kings College London, Defra, University of LeedsMap Plots, Original S code by Richard A. Becker and Allan R. Wilks. R version by Ray Brownrigg. Enhancements by Thomas P Minka [email protected] (2012). maps: Draw Geographical Maps. R package version 2.3-0. http://CRAN.R-project.org/package=maps Air mass back trajectories, R. R. Draxler and G. D. Rolph, HYSPLIT (HYbrid Single-Particle Lagrangian Inetgrated Trajectory) Model, http://ready.arl.noaa.gov/HYSPLIT.php, 2012. C6 Long-range influences OpenAir Package for R, NERC, Kings College London, Defra, University of LeedsMap Plots, Original S code by Richard A. Becker and Allan R. Wilks. R version by Ray Brownrigg. Enhancements by Thomas P Minka [email protected] (2012). maps: Draw Geographical Maps. R package version 2.3-0. http://CRAN.R-project.org/package=maps Air mass back trajectories, R. R. Draxler and G. D. Rolph, HYSPLIT (HYbrid Single-Particle Lagrangian Inetgrated Trajectory) Model, http://ready.arl.noaa.gov/HYSPLIT.php, 2012. GEM at Harwell Summary •Auchencorth Moss is a rural background monitoring site in south-east Scotland. •Harwell is a semi-rural monitoring site in southern England. •Influences on GEM at the supersites is both local, but with significant influence through long range transport. •At Auchencorth Moss: • Air masses from mainland Europe have been shown to bring the higher levels of GEM to site, whilst Atlantic / Polar air masses bring the lowest. • PBM and GOM are extremely low and generally <LoD. • PBM levels may be influenced by peat extract work close to the site, but further work is needed to investigate this. Thank you