In this episode, we look at the thorny issue of Air Quality and what happens when that turns in to air pollution. How can we find out when conditions are dangerous, and what can we do, individually and collectively, to improve the quality of the air we breathe. We bring together Becky Brown at RBKC and James Bellinger at Arup about how levels are monitored; Jack Alexander at Global Action Plan, who goes into the borough's primary schools to talk to the children; and Debra Eden, a mother, grandmother and youth worker. We learn how pollution works, where it is bad and how to take action to avoid the worst effects. Plus Lilian Gowan at Lancaster West Neighbourhood Team explains how domestic air quality monitors work and where to get one free of charge