Volatility of a Ship’s Emissions in the Baltic Sea Using Modelling and Measurements in Real-World Conditions
Artikel i vetenskaplig tidskrift, 2023

Shipping emissions are a major source of particulate matter in the atmosphere. The volatility of gaseous and particulate phase ship emissions are poorly known despite their potentially significant effect on the evolution of the emissions and their secondary organic aerosol (SOA) formation potential. An approach combining a genetic optimisation algorithm with volatility modelling was used on volatility measurement data to study the volatility distribution of a ship engine’s emissions in real-world conditions. The fuels used were marine gas oil (MGO) and methanol. The engine was operated with 50% and 70% loads with and without active NOx after-treatment with selective catalytic reduction (SCR). The volatility distributions were extended to higher volatilities by combining the speciation information of the gas phase volatile organic compounds with particle phase volatility distributions and organic carbon measurements. These measurements also provided the emission factors of the gas and particle phase emissions. The results for the particle phase volatility matched well with the existing results placing most of the volatile organic mass in the intermediate volatile organic compounds (IVOC). The IVOCs also dominated the speciated gas phase. Partitioning of the emissions in the gas and particle phases was affected significantly by the total organic mass concentration, underlining the importance of the effect of the dilution on the phase of the emissions.

marine emissions


atmospheric emissions


volatility basis set


Oskari Kangasniemi

Tampereen Yliopisto

Pauli Simonen

Tampereen Yliopisto

Jana Moldanova

IVL Svenska Miljöinstitutet

Hilkka Timonen

Finnish Meteorological Institute

Luis M.F. Barreira

Finnish Meteorological Institute

Heidi Hellén

Finnish Meteorological Institute

J. P. Jalkanen

Finnish Meteorological Institute

E. Majamäki

Finnish Meteorological Institute

Barbara D’Anna

Aix-Marseille Université

Grazia Lanzafame

Tampereen Yliopisto

Aix-Marseille Université

Brice Temime-Roussel

Aix-Marseille Université

Johan Mellqvist

Chalmers, Rymd-, geo- och miljövetenskap, Geovetenskap och fjärranalys

Jorma Keskinen

Tampereen Yliopisto

Miikka Dal Maso

Tampereen Yliopisto


2073-4433 (eISSN)

Vol. 14 7 1175

"SCIPPER" Shipping contributions to inland pollution push for the enforcement of regulations

Europeiska kommissionen (EU) (EC/H2020/814893), 2019-05-01 -- 2022-04-30.





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