I hear a lot about lower CO2 emissions, but nothing about lower heavy metal contamination … and we should!
In many places, the largest contributor to heavy metal contamination (PM10) in storm water systems is from the metal in car brakes. While this has been partially addressed by watching what types of metals are now used in brakes, it is still an issue.
Think about how many brake pads on your ICE car had to be replaced. With 1 billion cars in the world with a replacement every 50K miles equates to about 1.6 billion brake pads every year (8 per car once every 5 years) ... about 100,000 cubic meters of PM10 contaminates or about 1,000 semi-trailers full of PM10. Guess where all the brake pad material went? Onto roads and then down storm drains, and then …
I rarely have to use the brakes in the Tesla because of Regenerative Braking. And, when I do, the braking is lighter because of the regenerative assist. Less and light braking means less PM10 contamination.
So why don’t I hear about this in Tesla brochures. Less CO2. Less PM10 contamination!