Nitrogen Oxides (NOx) – Definition and Pronunciation
What is NOx?
Nitrogen oxides (NOx) are a group of gases composed of nitrogen and oxygen, primarily including nitric oxide (NO) and nitrogen dioxide (NO2). They are significant air pollutants produced from combustion processes, such as those in vehicles and power plants, and can contribute to smog, acid rain, and respiratory problems.
Examples of NOx
A direct and sustainable reduction in emissions (SOx, NOX and PM) should be assessed together with a relevant set of measures to mitigate the risk of any methane emissions to the atmosphere.
From “LNG Bunkering Feasibility: An Analytical Framework”.
The international framework for LNG as fuel, similarly to the European context, starts with the main environmental instrument MARPOL, imposing restrictions on air emissions from ships, through it Annex VI regulations 13 and 14, for NOx and SOx emissions, respectively.
From “LNG Regulatory Framework International and European Maritime Safety Overview”.
LNG fuel systems require specialist crew and we expect their use to be limited to new build vessels due to the expense of retrofitting: infrastructure for LNG bunkering will be less established than for other fuel types in 2020. LNG has low NOx and SOx emissions.
From “Low Sulfur Fuel Operational Challenges for Ships”.