Comparing emissions of polyaromatic hydrocarbons and metals from marine fuels and scrubbers
Journal article, 2021

In January 2020, new global regulations were implemented to limit the maximum sulphur content in marine fuels. As an alternative to switch to compliant fuels, the regulations allow for installations of exhaust gas cleaning systems, e.g. scrubbers, that enables a continued use of less expensive heavy fuel oils (HFOs). Characterization of scrubber discharge water shows that the acidified water also becomes enriched with contaminants, and large quantities of metals and polyaromatic hydrocarbons (PAHs) are thus being discharged directly to the marine environment. When emissions of contaminants to the atmosphere and the marine environment are evaluated simultaneously, the results show that HFO, with scrubbers installed, generates higher emission factors of both metals and PAHs compared to MGO. This highlights the importance of including both the marine and the atmospheric perspective when comparing environmental loads and impact of contaminants from shipping.

Environmental load

Heavy metals

Scrubbers

Emission factors

Marine fuels

Polyaromatic hydrocarbons

Author

Anna Lunde Hermansson

Chalmers, Mechanics and Maritime Sciences, Maritime Studies, Maritime Environmental Sciences

Ida-Maja Hassellöv

Chalmers, Mechanics and Maritime Sciences, Maritime Studies, Maritime Environmental Sciences

Jana Moldanova

IVL Swedish Environmental Research Institute

Erik Ytreberg

Chalmers, Mechanics and Maritime Sciences, Maritime Studies, Maritime Environmental Sciences

Transportation Research Part D: Transport and Environment

1361-9209 (ISSN)

Vol. 97 102912

Evaluation, control and Mitigation of the EnviRonmental impacts of shippinG Emissions (EMERGE)

European Commission (EC) (874990EMERGE), 2020-02-01 -- 2024-01-31.

Subject Categories

Other Environmental Engineering

Marine Engineering

Environmental Sciences

DOI

10.1016/j.trd.2021.102912

More information

Latest update

7/1/2021 1