Braking Bad

While we may eventually reduce automobile pollution by developing more zero-emission cars, brake and tire dust show no signs of being lowered. Metals from brakes are emitted into the air as fine particles. These particles linger over busy highways.

Georgia Tech researchers have shown how that cloud of tiny particles can effect respiratory health. These particles, when mixed with acidic sulfates, change from their normally insoluble nature, making them more likely to cause stress when inhaled.

The Tech researchers took samples of ambient particles at two locations in Atlanta—one near a busy interstate highway and the other at an urban site about 1,370 feet from a roadway.

Read the entire story in Georgia Tech Research HORIZONS, Issue 1 2017.