The Port Authority of Genoa has published its latest annual report on inspection activities for the fight against naval air pollution, which highlights how In 2025, 228 inspections were carried out on 146 ships foreign and 82 Italian companies to verify the levels of emissions of nitrogen oxides (NOx), for a total of over 2,600 checks individual. The outcome of this activity led to the detection of 31 deficiencies and the provision of eight ship detention measures in the most critical cases.

A significant part of the inspection work was focused precisely on emissions of nitrogen oxides, with controls - specified the Harbour Master's Office - which are not limited to simple bureaucratic checks, but involve physical inspections, even invasive, on engines. In particular, inspectors shall verify that every part of the engine (such as injectors, pumps, turbine heads) has the correct IMO ID marking, ensuring compliance to the approved Technical File. On this front - he specified the Genoese Harbour Master's Office - a recent sentence of the TAR Liguria confirmed the correctness of the Guard's actions Coastal, establishing that: "the Technical File is a a binding compliance parameter, not an indicative guide; the absence of IMO marking of the components is in itself sufficient to justify the detention."

Regarding the emission controls of sulphur oxides (SOx), and therefore on the sulphur content of marine fuels, in the 2025 in the port of Genoa, a total of 32, of which 12 with sampling and analysis in the laboratory, and an irregularity of a which was immediately corrected.

As for the monitoring of CO2 emissions, the controls as part of the European Union's MRV system for monitoring, The communication and verification concerned 196 ships and They did not find any irregularities.

The annual report recalls that 2025 marked a important change: from the first of May, in fact, the Mar Mediterraneo is officially a SECA (Sulphur Emission Control Area), with the obligation to use fuels with sulfur not exceeding 0.10%. Genoa had already anticipated this measure with the voluntary Genoa Blue Agreement protocol.

Alongside the inspection activity, the Harbour Master's Office has continued the monitoring of visual emissions and the comparison direct with the shipping companies, obtaining a progressive reduction of the most recurrent critical issues. The Capitaneria highlighted that "the most significant are not only in numbers, but in the ability to concretely affect those situations of greatest suffering with simultaneous reduction of smoke and better engine efficiency".