Knowing if electric cars pollute and, if so how much, is very important to the many motorists who choose these vehicles at least partially, if not mostly, for their sustainability. We can say for sure that electric vehicle engines do not emit exhaust gases, because they do not undergo an internal combustion process, which translates into the complete elimination of CO2, nitrogen oxide (NOx) and fine particulate matter (PM). For this reason, electric vehicles are often referred to as zero-emission cars, which greatly benefit air quality in urban centers.
The question, however, is broader and also encompasses energy sources as well as the production of the vehicle and its components, starting with batteries. As we shall see, even broadening the analysis to include these aspects, electric mobility still proves to be sustainable.