Fine particles: the electric car also emits them when braking

In a study published in April 2022, the Ecological Transition Agency (Ademe) points out that the tightening of regulations and the generalization of the exhaust filter since September 2018 have led to a reduction in the volume of fine particles emitted. during the combustion of premium fuel and diesel. The relative proportion of these carbon particles also tends to decrease compared to that of rubber, brakes and road dust, as the number of vehicles with 100% electric traction in traffic increases. And that won’t improve, because the various brake particle collection systems that have been successfully tested are not yet installed in Mr. Car’s car. Everyman.

Engines emit less than half of the particles generated by road traffic in Europe

It is precisely the “typical compact sedan of the average European motorist” that the British analysis firm Emissions Analytics tested in real traffic conditions. Inflated at the recommended pressure, its four tires emitted 5.8 grams of particles per kilometer, while the exhaust only released 4.5 grams per kilometer. The researchers conclude that “the particles extracted from the tires can be up to a thousand times more numerous than those from the exhaust.” Consolation, these microscopic fragments of rubber and silica are less fine (and perhaps less harmful) than the carbon particles resulting from the combustion of diesel and gasoline, classified as carcinogenic by the WHO since 2012.

Read on tooTire wear, the primary source of fine particles

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