Abstract
The aim of this book is to synthesize policy-relevant knowledge on air pollution and health, and thereby provide a firmer basis for improving public health in low and middle income countries. The information presented is of particular relevance to middle income countries, where urban concentrations of health damaging pollutants are often among the highest in the world, and preventive and protective measures are still at an early stage. It is also relevant to low income countries, where air pollution problems tend to be more localized, but can be very severe when they do arise.