The purpose of this book is to make builders aware of the opportunities and problems that indoor air quality presents and to provide them with practical advice on:

• how to build for good indoor air quality;
• how to operate a house for high indoor air quality; and
• how to solve indoor air quality problems if they occur.                       

We consider the local aspects of vehicular pollution by wind tunnel testing used in conjunction with a tracer-gas technique. These initial results show that the level of pollution received by a commuter in slow-moving heavy traffic may be as much a function of the pollution produced from the car in front as other environmental aspects.