The electricity that arrives at our home may or may not be in the form of an undistorted sine wave.  Between the generating station and our home, and inside our home, it can pick up extra frequencies, transient distortions, harmonics, surges, and more.  There is a growing body of evidence that it may cause serious health effects in some people.  This map does not attempt to discuss the electrical production or remediation of dirty electricity.  Instead, it offers links to articles, overviews, presentations and studies on the health effects created by it.