Euro III (popularly referred to as Euro3) is the emission standard for vehicles introduced in the EU in 1999. It limits diesel car emissions to 0.5 g/km of NOx and 0.05 g/km of Particulate Matter (PM), petrol cars to 0.15 g/km NOx and Heavy Goods Vehicles (HGVs) to 5 g/kWh of NOx and 0.1 g/kWh of PM. Emission standards limit the amount of pollution that can be released into the atmosphere. ... There are several possible use of the 3 letter word/formula nox: Nox is a goddess of Night: see Nyx. ... Particulates, alternately referred to as Particulate Matter (PM) , aerosols or fine particles are tiny particles of solid or liquid suspended in the air. ... Heavy Goods Vehicle (HGV) is a generic and formal designation in British English for classification of large road vehicles intended to carry goods. ...
It has been replaced by Euro IV in 2005. EURO IV is the emission standard for vehicles that will be introduced in the EU in 2005. ...