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Airborne monitoring of compliance to NOx emission regulations from ocean-going vessels in the Belgian North Sea Van Roy, W.; Scheldeman, K.; Van Roozendael, B.; Van Nieuwenhove, A.; Schallier, R.; Vigin, L.; Maes, F. (2022). Airborne monitoring of compliance to NOx emission regulations from ocean-going vessels in the Belgian North Sea. Atmospheric Pollution Research 13(9): 101518. https://dx.doi.org/10.1016/j.apr.2022.101518 In: Atmospheric Pollution Research: Buca. ISSN 1309-1042 Is gerelateerd aan: Van Roy, W.; Scheldeman, K.; Van Roozendael, B.; Van Nieuwenhove, A.; Schallier, R.; Vigin, L.; Maes, F. (2023). Corrigendum to ‘Airborne monitoring of compliance to NOx emission regulations from ocean-going vessels in the Belgian North Sea’ [Atmos. Pollut. Res. 13 (2022), 101518]. Atmospheric Pollution Research 14(12): 101922. https://dx.doi.org/10.1016/j.apr.2023.101922, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 382244 [ aanvragen ]

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Trefwoord

Marien/Kust

Author keywords

Ship emissions; Air pollution; Airborne surveillance; Maritime policy; Marine environment; Nitrogen dioxide

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Auteurs		Top
Van Roy, W. Scheldeman, K. Van Roozendael, B. Van Nieuwenhove, A.	Schallier, R. Vigin, L. Maes, F.

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Abstract

Along the worldwide tightening of standards for sulphur emission from ocean going vessels (OGVs) come actions that are also being taken to reduce nitrogen emission. Particularly, as a milestone in this regard, on January 1st, 2021 the NOx Emission Control Area (NECA) for the North Sea and Baltic Sea came into effect. In response to the newly established NECA, the sniffer sensor system on the Belgian coastguard aircraft was modified and extended with a NOx sensor. Moreover, a methodology was developed to evaluate OGV compliance to the NOx emission limits through in situ measurements of the plume exhaust. The quality and uncertainty of the measurements demonstrate that it is likely to achieve an effective compliance monitoring of the NOx emission standards on the sea. Those emission standards are further divided into four tiers depending on the keel laying date. As has been proved by the results, NOx emissions for Tier II OGVs, contrary to what might be expected, are on average higher than those for Tier I OGVs. What is even more problematic, Tier II OGVs have also more often been found to be non-compliant than Tier I OGVs.

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