What is NOx?

Nitrogen oxides (NOx) are waste gases which lead to acid rain and increased concentrations of ground-level ozone. Emissions may have harmful effects on the eco system and vegetation in addition to being hazardous to people’s health.

Smoke from a chimney

NOx is emitted from the combustion of oil, gas and bio-fuel. The emissions may be reduced by improving the combustion processes and through a change-over to fuels which serve to reduce emissions, or by installing cleansing equipment.

The Gothenburg Protocol
Through the Gothenburg Protocol Norway has committed itself to reducing its total annual emissions of NOx up to a maximum 156 000 tonnes. The goal of the Environmental Agreement on NOx is to reduce the annual emissions of NOx with approximately 30 000 tonnes. Emissions from enterprises that are eligible to join the Agreement constitute approximately 124 000 tonnes. This means that the reduction will constitute one fourth of the overall emissions. The Agreement will be in force for 2008, 2009 and 2010, with 2011 as a year for implementation.  

The Environmental Agreement on NOx
Emission reductions as a result of the Agreement are first and foremost expected to come from the shipping and the fishing fleet, but also measures in the mainland industry and the offshore petroleum industry are possible. Ship owners may reduce emissions by installing cleansing equipment, upgrading the ship engine or by switching from diesel to gas.