Emissions of nox and sox from baltic shipping effects on air quality and marine eutrophication
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Emissions of NOx and SOx from Baltic shipping Effects on air quality and marine eutrophication. Tapani Stipa , Jukka-Pekka Jalkanen, Marke Hongisto , Jari Walden ( Finnish Meterological Institute) Juha Kalli ( University of Turku) Anders Brink (Åbo Akademi University ).

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Shipping is a global source of emissions

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Emissions of nox and sox from baltic shipping effects on air quality and marine eutrophication

Emissions of NOx and SOx fromBalticshippingEffects on air quality and marine eutrophication

Tapani Stipa, Jukka-Pekka Jalkanen, MarkeHongisto, Jari Walden (Finnish Meterological Institute)

Juha Kalli (University of Turku)

Anders Brink (Åbo Akademi University)


Shipping is a global source of emissions

Shipping is a globalsource of emissions

  • Shippingenjoyslong-standingfreedoms of the highseas

  • Emissionsfromshipsaredifficult to measure

    • Previousestimateswerebased on bunkerused and estimatedshiproutes

    • Updatesevery 5-10 years

  • Emissionshardlyregulated (until 2005 at least)


Goals emission inventory

Goals (Emission inventory)

AIS information

Revised emission factors


Live emissions

Live emissions


Distribution of annual nox emission

Distribution of annual NOx emission


Verification of emission estimates fuel consumption estimate

Verification of emission estimatesfuelconsumptionestimate


Wind waves and fuel consumption by hour

Windwaves and fuelconsumptionbyhour


Nox deposition mgn m 2 due to shipping

NOx deposition (mgN/m2) due to shipping


Percentage of monthly nox deposition due to ship emissions

Percentage of monthly NOx deposition due to ship emissions

July 2006

January 2007


Emission measurements

Emission measurements


Measurement station in aegna

10,65 m

7 m

6 m

Measure-ment cabin

measurement station in Aegna

  • - Wind direction and –speed

  • - Temperature

  • - Measurement of gas compounds: O3, SO2 and NO/NOx

    • Mesurement frequency: 10 min discontinuous periods

    • -Windspeed

  • - Temperature

    • -Wind speed

  • - Temperature

  • - Measurement of gas compounds: O3, SO2 and NO/NOx


  • Measured data example 9h period 29 7 2007

    Measured data; example, 9h period 29.7.2007


    Shipping is a potential contributor to marine eutrophication

    Shipping is a potential contributor to marine eutrophication

    Thought experiment:A month’s worth of shipping emissions would increase the nitrogen level in the sea within 10 km of the shipping lane significantly. The increase is comparable to about 5-20% of winter nutrient concentrations.


    Scenario with 5 2 growth

    Scenario with 5.2% growth


    Conclusions

    Conclusions

    • In the Balticregion, shipemissionsaccount for up to 50% of the Nox deposition

    • Balticshippingcreatesmore SOx emissionsthanNordiccountries (FI, SE, NO, DK) togetherfromland-basedsources

    • Muchpolicy-levelactivityboth in the Baltic and internationally

    • Should WMO liaisemorecloselywith IMO to promote the study of shippingemissions and theireffects?


    Thank you

    Thankyou!

    [Quiz: where is the abovepicturetakenfrom?]


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