Among the regulated sources of pollutants, shipping has a significant contribution to NOx and SOx global emissions, impacting air quality of coastal cities. The regulations of maritime transport,Annex VI of MARPOL, was updated in 2020 lowering the sulfur content in marine fuel globally to maximum 0.5% (from 3.5%) . Specific Sulphur Emission Control Areas have been established where the emissions of sulphur are further restricted, such as the Channel between France and the U.K. However, other pollutantsemitted by maritime transportation, such as VOCs or PM, are not regulated.. However VOCs are of importance in the atmospheric chemistry processes, notably because of their role in harmful ozone and SOA formation, notably in proximity of densely populated coastal zones. This raises the following questions: what are the VOCs emitted by ships under these new emission norms, what are their emission rates and their impact on air quality? Few studies considered the speciation of VOC, yet speciated data is crucialto provide reliable gas-phase atmospheric chemistry modelling and to correctly assess their impact. This study presents the analysis of a dataset obtained during an one-month intensive field campaign in the harbour of Dunkirk inthe North of France . The site was located near ferry and cargo terminals and provides high time resolution measurements of VOC, using a PTR-ToF-MS, and many other parameters (meteorology, particles,gases). Data analysis allowed to identify 76 ship plumes based on favourable meteorological conditions, confirmed by harbour office entries and video monitoring. Statistical methods show that emission factors for SO2 are consistent with the exhaust measurements (REF) and that VOC factors could be of smaller importance . We plan to use Positive Matrix Factorisation (PMF) to better discriminate the variety of VOC sources of the site, to precise the emission factors. The outputs of this study will enhance the atmospheric modelling of regional air quality monitoring agencies and can help improve emission inventories.