In the UK many of us won't notice if the air quality has worsened, but if you have a lung condition it can be life-threatening.

Haziqah Zaman, six, Peter Edwards, 33, and Bridget Malin, 73, all feel the effects of pollution.

In January 2020 the city they live in will introduce a clean air zone (CAZ).

Following in the footsteps of London, drivers of high-polluting vehicles will have to pay to travel into the centre of Birmingham.

Video journalist: Louise Brierley