The health risks posed by indoor pollutants have concerned scientists for many years. Because people spend a high percentage of their time indoors, and concentrations of pollutants often are higher in indoor air than outdoor air, the risks due to exposure can be higher than many other environmental risks. Many indoor environmental quality problems might get worse if adaptations to climate change are made without better information and programs aimed at pollution prevention. This book describes common indoor pollutants, discusses federal statutes that have been used to address indoor pollution, and analyses key issues surrounding some general policy options for federal policy makers, with a focus on chemical contaminants.