UV-A: Biological Effects of Ultraviolet Radiation with Emphasis on Human Responses to Longwave Ultraviolet

by John A. Parrish, Frederick Urbach, R. Rox Anderson

The origin of this text was a request by industry and government to summarize the biological effects and to estimate the limits of safe exposure to longwave ul­ traviolet radiation. The specific issue was the safety of a small medium-pressure mercury arc designed to emit UV-A (NUVA-Lite, L. D. Caulk Co. , Milford, Delaware) for photopolymerization of resinous fillings used in dentistry. How-­ ever, the context grew to become a consideration of the risks and benefits to hu­ mans of electromagnetic radiation between the biologically active short UV and the visible spectrum. We have accumulated data from our own experimental work and from the literature and have attempted to put this information in the perspective of known biologic effects of ultraviolet radiation as it influences hu­ mans. Interest in the biological effects of longwave ultraviolet radiation is increas­ ing in all of the many scientific disciplines that make up the complex field of photobiology. In order to minimize the chance for error and personal prejudice and to maximize the use of expertise, each chapter has been reviewed by several authorities. Some of the contributions of this group led to significant alterations and creative additions to the chapter, and these persons deserve not only our sin­ cere gratitude but also recognition by the reader. These include Chapters 2 and 3: Dr. Robert E. Levin, Mr. Charles P. Comeau, Mr. Donald Gonser, Dr. David Sliney; Chapter 5: Dr. Jerry Williams, Dr. Robert Webb, Dr. Madhu A.

262 pages, Hardcover

First published January 1, 1978

About the author

John A. Parrish, MD, is the cofounder and CEO of the Center for the Integration of Medicine and Innovative Technology (CIMIT) and the former director of the Red Sox Foundation and Massachusetts General Hospital Home Base Program. He is a distinguished professor emeritus of dermatology at Harvard Medical School and has served as chief of the department of dermatology at Massachusetts General Hospital. Parrish is also a member of the National Academy of Science’s Institute of Medicine. He is the author of Autopsy of War: A Personal History and 12, 20 & 5: A Doctor’s Year in Vietnam.