Emissions & Ratings
Until zero emissions vehicles are being used at scale, we need to choose the cleanest technology available to reduce urban NOx and CO2 emissions.
What causes air pollution?
Air pollution is a local, regional and international problem caused by the emission of pollutants which lead to negative impacts on human health and ecosystems. There are many sources of air pollution including:
- Power stations
- Traffic and vehicle emissions
- Household heating
- Industrial processes
Why is air pollution dangerous?
Air pollution caused by vehicle emissions like NOx gases can affect our respiratory system through potentially lethal inflammation and decreased function. Release of CO2 can also reach harmful levels for humans and the environment.
In the UK a nine-year-old girl’s fatal asthma attack has been linked to illegally high levels of air pollution. During the time she lived in an air pollution ‘hot spot’ in London, local air pollution levels breached EU legal limits. No individual death had been directly linked to air pollution until now.
Types of vehicle emissions
NOx refers to nitric oxide and nitrogen dioxide. They are released from vehicle engines and can reach harmful levels in towns and cities. They are an irritant and cause inflammation of the airways.
Vehicles produce CO2 when they use fuel. The amount of CO2 produced is directly linked to how much fuel they consume. Excess levels of CO2 can be harmful to humans and the environment.
The AIR Index is an independent vehicle emissions rating for cars and vans. Ratings range from A (best) to E (worst), based on the true on-road urban NOx and CO2 emissions using the same test on every vehicle.
Cabin Air Quality
Cabin air quality is the measure of the air quality within the vehicle itself. While you sit in traffic and drive through cities in towns, your vehicle should filter out the harmful emissions to keep you safe.
All vehicles on European roads must have a Euro emissions rating which reports the results of lab-based tests carried out by car and van makers to simulate the levels of harmful emissions produced in certain driving conditions.
Miles per gallon (Mpg) or consumption in litres per 100km is a measure of how economical a car or van is based on how far it can travel with just one gallon of fuel (petrol or diesel) or how many litres of fuel needed to travel 100km.
Real Driving Emissions
Real-world and on-road driving emissions and actual fuel economy tests are designed to be a much more accurate reflection of how vehicles perform with typical use.