John F McCarthyJohn F. McCarthy, Sc.D., is president of Environmental Health & Engineering, Inc., of Newton, Massachusetts, a company that has investigated air quality in more than 1600 buildings since 1988. Dr. McCarthy is an expert in the assessment of complex polutant exposures, use of biological markers in assessment, aerosol technology, control of toxic air pollutants, the development of health and safety programs and building commissioning. Read More Read Less