Kids wear special backpacks to help tackle air pollution

Kids in London are helping scientists find out more about what dirty air does to our bodies.

They're wearing special backpacks which can measure air pollution outside their school.

Exhaust waste from cars is a problem because the fumes get into the air we breathe.

We can't see these particles but they can get into our lungs.

Scientists want to learn more about how this affects us. Watch the report to find out how.