Norway has a national Road Tolling Scheme with a low emission aspect, which operates major and national roads, and in a number of cities. 

Some Norwegian cities have a Low Emission Zone, where the cost of the road toll is higher for more polluting vehicles. These cities have a green LEZ scheme below, but the information can be found under the toll scheme for the city in question.

A number of Norwegian cities have also introduced Emergency Schemes for times of high air pollution.

One city has a Zero Emission Zone in place: Oslo.
Bergen, Oslo and Trondheim have also a Studded Tyre Charge.

The Netherlands has a national framework for Low Emission Zones, which are called 'milieuzone'. Low emission zones only ever apply to diesel vehicles. Vehicles using other fuels are always allowed to enter.

Access is regulated on the basis of the Euro standard for light duty vehicles on the one hand and heavy duty vehicles and/or coaches on the other. No stickers or registration is required. Cameras and special enforcement officers ensure compliance.

Cars and vans

Currently, Amsterdam, Arnhem, The Hague, Utrecht and Eindhoven have an LEZs for light duty diesel vehicles. The traffic sign shows a passenger car and a van followed by a circle with a 5 in it. This means that only light duty diesel vehicles that meet the Euro 5 standard and above can enter the zone.

Heavy duty vehicles and coaches

Seven cities have low emission zones that apply to trucks: Amsterdam, Arnhem, Breda, Delft, Maastricht, Maasvlake Rotterdam and Rijkswijk. 

These cities have low emission zones for coaches and buses: Amsterdam, Eindhoven, Rijkswijk, Den Haag and Utrecht. The minimum standard for diesel buses and coaches is Euro 6.

The Netherlands also has Access Regulations such as car-free zones in various cities and a transit ban. 
Many Dutch provinces and municipalities have joined the Amsterdam regional Zero Emission Zone Logistics.

Malta has an Urban Tolling Scheme in the capital Valetta.

Lithuania has a Urban Tolling Scheme in the city of Kaunas.

Riga has two Access Regulations and Jurmala has a Charging Scheme in place. 

Ireland has one Access Regulation in place, a restriction on heavy goods vehicles with over 5 axles in Dublin.

Hungary has an Access Regulation in Budapest for all types of vehicles. There are tolls that are cheaper for cleaner vehicles.
Budapest also has an Emergency Scheme in place that is activated when certain air quality limits are exceeded.

Athens has had an odd and even number plate scheme outside the summer months for some time.
Now cleaner vehicles are exempted, to give it aspects of a Low Emission Zone.
Thessaloniki also has a low emission zone that applies to diesel vehicles > 2.2t.