> We find that brake wear produces both positive and negative charged particles that can hold in excess of 30 elementary charges and show evidence that more neg

> We find that brake wear produces both positive and negative charged particles that can hold in excess of 30 elementary charges and show evidence that more negative charges are produced than positive. So like with a "negative ion generator" air filter; the ionized particles should stick to the nearest grounded surface. Brakes are often located quite close to the actual ground, handily enough. Anyone who has done brake shoes on a drum brake car likely remembers a pile of brake dust. Unpleasant but not as bad imo as say, perlite dust. Certainly it's no mystery that the consumable brake parts are consumed; where did anyone think they were going? Just exactly how many pounds of brake pads are sold a year? that's probably not far from the amount that winds up as road dust. Seems querying the manufacturers and parts stores might be a good data source.