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NORTRIP Kick off: NILU contribution and discussion

NORTRIP Kick off: NILU contribution and discussion. Bruce Denby. Contents. NILU interests Background Activities Projects NILU contributions Monitoring data Modelling NILU expectations. NILU interests. PM 2.5 : Particles < 2.5  m. PM 10 : Particles < 10  m.

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NORTRIP Kick off: NILU contribution and discussion

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  1. NORTRIPKick off: NILU contribution and discussion Bruce Denby

  2. Contents • NILU interests • Background • Activities • Projects • NILU contributions • Monitoring data • Modelling • NILU expectations

  3. NILU interests PM2.5: Particles < 2.5 m PM10: Particles < 10 m Anything bigger than a molecule (nm) and smaller than a fine grain of sand (1/10 mm) that is suspended in the air

  4. NILU interests: Background • Several cities in Norway are affected by road dust • > 25% studded tyres • Salting activities • Road authorities do not want to reduce studded tyres • In Oslo various measures seem to be effective • Environmental speed limit • Road cleaning • Prohibitive salting (MgCl2)

  5. NILU interests: Background • Carried out some campaigns • RV4 ‘hastighet’ project • Nordby Sletta ‘Afstand’ project • Earlier road dust loading measurements • Carried out some modelling • Tønneson model applied in AirQUIS • Generalised road wear and mass balance model (Berger, 2010) • Carried out some source apportionment • Dataset used in SRIMPART

  6. Chemical profiles and receptor modelling • Road side PM10 receptor modelling near Aker hospital Winter 2004 Winter 2005

  7. Chemical profiles and receptor modelling • Road side PM10 receptor modelling near Aker hospital 30% of PM10 road dust emissions are due to salting From Laupsa et al. (2007)

  8. Dispersion modelling • Winter time road side PM10 modelling near Aker hospital From Laupsa et al. (2007)

  9. NILU interests: Current activities • Development of a model for resuspension that can be used more generally, also for air quality planning purposes • Berger (2010) • Monitoring campaigns that provide improved information on: • The effect of road surface conditions on resuspension • The contribution of salt to resuspended PM • Relating road wear directly to emissions

  10. NILU interests: Current projects • TRANSPHORM (EU FP7): Health impact of transport emissions of PM • Source apportionment (ESCAPE filter samples) • Non-exhaust emissions • Modelling of particle numbers (exhaust) • Applications to health C-R relationships • Application to policy • www.transphorm.eu • Possible monitoring campaign: • 8 M NNOK, funding by KLIF • Too expensive for Norway • Relating road wear directly to emissions

  11. NILU data: • RV4 • Used in SRIMPART for SA • 80 analysed PM10 and PM2.5 filter samples • Nordby Sletta • 3 distance from the road + background • PM10, NOX and meteorology measure • Operational data • Several traffic stations monitoring over many years • Recent statistical analysis by Norsk Regnesentral • Road surface conditions • Measured by Veg Vessen (surface temperature and wetness) • Not so useful as hoped

  12. NR statistical analysis

  13. NILU expectations: • Learn and improve • Pooling and sharing of knowledge out of common interest • Exchange of opinions (what’s not in an article) • Access to other data sets • More data always provides more insight or questions • Comparability • Operational Nordic road dust model • Applicable over a wide range of conditions • Applicable for air quality planning activities (does not exist) • Possibility to organise a European workshop on non-exhuast emissions?

  14. What are the sources? Traffic exhaust Pollen Road, break and tire wear Fungal spores Wind blown dust Vulcanoes Road salting Wood burning Forest fires Building Agriculture Shipping Sea salt Secondary aerosols Secondary aerosols Industry

  15. What does it look like? Pollen Volcanic Salt Wood burning Exhaust

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