Lloyd Barton Tepper, MD, ScD, of Villanova, PA, former Adjunct Professor of Occupational and Environmental Medicine at the University of Pennsylvania, died on January 29 at the age of 93.  Born in Los Angeles, he was the son of Dorothy and Gilbert Tepper, a surgeon.  He graduated from Dartmouth College summa cum laude and Phi Beta Kappa in the Class of 1954, and received the MD and ScD degrees from Harvard University.  While at Dartmouth Dr. Tepper was uncertain as to whether his professional career should be in chemical engineering or medicine, and though choosing medicine, there was always a strong attraction to chemical engineering.  This was reflected in four years of post-graduate training:  one-third in medicine at the Massachusetts General Hospital; one-third devoted to industrial hygiene engineering, radiological health, ventilation and related studies at the Massachusetts Institute of Technology; and one-third in an Atomic Energy Commission fellowship in occupational medicine at the Harvard School of Public Health.  At the hospital he participated in some of the early research on the epidemiology, diagnosis, treatment, and course of occupational disease related to beryllium.

Following four years during the Cold War at the Atomic Energy Commission, Dr. Tepper was Professor of Environmental Health and Associate Director of the Kettering Laboratory at the University of Cincinnati.  He subsequently became Associate Commissioner of Food and Drugs at the U. S. Food and Drug Administration (FDA).  In this post he found a special interest in the development of research projects that required no "hard money," viz. dollars, in countries with large U.S.-owned accounts in non-convertible currencies, e.g., Polish zlotys, Egyptian pounds, Indian rupees, Moroccan dirhams.  Prior to retirement in 1997, he was Corporate Medical Director for Air Products and Chemicals, Inc.  There he continued to have an interest in international occupational medical affairs and believed that he was the only American physician to have inspected an Algerian hospital accompanied by a soldier with a Kalashnikov.

Dr. Tepper was Vice-Chair and Trustee of the American Board of Preventive Medicine, and for more than 20 years was editor of the examinations required of physicians seeking Board certification in Occupational Medicine, Aerospace Medicine, Undersea and Hyperbaric Medicine, and Public Health and General Preventive Medicine.  He was noted for an ability to detect ambiguities in questions, lack of precision in language, and unnecessary words.  In 1980-81, Dr. Tepper was President of the American Academy of Occupational Medicine, now the American College of Occupational and Environmental Medicine.  He was editor for 13 years of the Journal of Occupational and Environmental Medicine.  He was a director of the Chemical Industry Institute of Toxicology (CIIT) at its inception and served with the Accreditation Council for Graduate Medical Education, the organization which accredits residencies in the now 182 specialty and sub-specialty areas of medicine.

Following his retirement, he was Adjunct Professor of Occupational and Environmental Medicine at the University of Pennsylvania, working with residents in the field.

He is survived by Lamonte Leverage Tepper, his wife of 67 years, and sons Jeffrey Hamilton Tepper of Tacoma, WA and Evan Clothier Tepper of Boston.