Tires create fine particle dust which seeps in the ground as they wear on the pavement
Electric vehicles being heavier than comparable gasoline powered vehicles, their tires wear out more quickly
The level of tire pollution created can be worse than the tailpipe emissions of comparable vehicles
Automotive tires are a large source of the pollution created by the transport sector since the rubber they are made of creates fine particle dust by rubbing off on the pavement.
This dust settles on the ground and can seep into the underground water table, which can lead to health problems.
The problem with EVs is that their battery adds a very large amount of weight that makes them much heavier than comparably sized vehicles powered by gasoline engines.
This added weight means that electric vehicles wear out their tires faster and can create up to 400 times more pollution than the tailpipe emissions of a comparable car powered by gasoline.
This means that every kind of pollution combined, electric vehicles can turn out to be more damaging to the environment in everyday driving than competing cars equipped with combustion engines.
The news is not all bad however, since the study also found that careful drivers who accelerate slowly and use the regenerative braking functions of their EVs can limit the tire wear to a level that reduces the pollution under the level of tailpipe emissions.
In addition, several tire manufacturers are working on new tire materials that are better for the environment. For example, Goodyear is testing biodegradable tires, Continental showed a concept made of 50% recycled or renewable materials and Michelin currently commercialises the first carbon-neutral tire.
Source: Emissions Analytics