A warning has been issued to road users as Scotland's first Low Emission Zone (LEZ) comes into force this week.
Drivers may face fines up to £480 as strict standards limit many vehicles from driving through areas in Glasgow. The zones have been set out across the city, with zones in Edinburgh, Aberdeen and Dundee coming into effect next year.
The rules have been brought in to reduce air pollution, meaning that vehicles must meet a polluting emission to avoid a penalty charge. However, not every car will break the rules as other exemptions also apply for those living within or travelling through Glasgow's Low Emission Zones.