International NGOs have sent an urgent letter to International Maritime Organization (IMO) Secretary-General, Mr Kitak Lim, calling on him to take action to address international shipping’s climate impact, ahead of Friday’s crucial decision on IMO measures on black carbon emissions in the Arctic.
The Reduction on the Arctic of Emissions of Black Carbon from International Shipping: This document comments on document PPR 8/5. It recommends a way forward with respect to a policy option that does not require a measurement method and urges Member States to commence action to reduce the impact on the Arctic of emissions of Black Carbon from international shipping.
This document comments on document PPR 8/5/1 and offers some additional information that the co-sponsors believe is relevant to put the results presented in document PPR 8/5/1 in perspective (The Reduction on the Arctic of Emissions of Black Carbon from International Shipping)
In terms of overall Black Carbon emissions, it is not seen that setting an H/C limit would address the issues since VLSFOs are generally not prone to aromaticity and furthermore the hydrocarbon structure of a fuel is only one element in the factors which govern BC emissions – The Reduction on the Arctic of Emissions of Black Carbon from International Shipping
In this document, the final results of a Black Carbon measurement campaign on a single cylinder 4-stroke medium speed research engine are presented. The aim of the study was to analyse the impact of fuel oil quality on Black Carbon emissions. Furthermore, the composition of the particulate matter in the exhaust gas and a detailed fuel oil analysis of the VLSFOs are presented. The formation of Black Carbon is dominated by the aromatic content and H/C ratio of a fuel and could not be compensated by engine settings (injection timing or pressure). The aromatic fraction of investigated VLSFO fuels were dominated by harmful polycyclic aromatic hydrocarbons (PAH).
This document provides the report of the Correspondence Group on Reduction of the Impact on the Arctic of Black Carbon Emissions from International Shipping