Particles of TruthBy: C. Arden Pope III, Douglas W. Dockery A compelling, real life account of how scientists uncovered air pollutions deadly impact on human healthand the contentious battles to use key scientific evidence in the critical fight for clean air. Particles of Truth is a riveting account of the discovery of the critical health effects of air pollution told by Arden Pope and Douglas Dockery, who have been at the forefront of air pollution and health research