Office: 1232 Mayo Phone: (612 )626-5428 ramac002@umn.edu   B.T., Electrical Engineering, Indian Institute of Technology, Bombay M.S., Environmental Engineering, Virginia Polytechnic Institute and State University Ph.D., Environmental Sciences and Enginering, University of North Carolina at Chapel Hill

Research and Teaching Interests

Areas of interest include occupational and ambient exposure assessment, Bayesian methods in retrospective exposure assessment, inhalation dosimetry for mixed exposures, aerosol measurements, theoretical and experimental studies on design of aerosol samplers, and inversion methodology.

Selected Publications

1. Krishnamoorthy, K., Mathew, T., Ramachandran, G. “Generalized p-values and confidence intervals: A novel approach for analyzing lognormally distributed exposure data”. Journal of Occupational and Environmental Hygiene. 3(11):, 2006.

2. Hewett, P., Logan, P., Mulhausen, J., Ramachandran, G., Banerjee, S. Rating exposure control using Bayesian decision analysis. Journal of Occupational and Environmental Hygiene. 3(10):568-581, 2006

3. Ramachandran, G., Adgate, J.L., Banerjee, S., Church, T.R., Jones, D., Sexton, K. “Indoor Air Quality in Two Urban Elementary Schools—Measurements of Airborne Fungi, Carpet Allergens, CO2, Temperature, and Relative Humidity ” Journal of Occupational and Environmental Hygiene. 2: 553–566, 2005.

4. Rechkemmer, P., Ramachandran, G., Pai, P., Maynard, A. “Women’s personal and indoor exposures to PM2.5 in Mysore, India: Impact of domestic fuel usage”, Atmospheric Environment, 39:5500-5508, 2005.

5. Ramachandran, G., Watts, W.F., Kittelson, D. “Mass, surface area, and number metric in diesel occupational exposure assessment”. Journal of Environmental Monitoring. 2005, 7(7), 728 – 735

6. Adgate, J.L., Church, T.R., Ryan, A.D., Ramachandran, G., Fredrickson, A.L., Stock, T.H., Morandi, M.T., and Sexton, K. “Outdoor, Indoor, and Personal Exposure to VOCs in Children.” Environmental Health Perspectives, 2004, 112:1386-1392.

7. Pratt, G.C., Wu, C.Y., Bock, D., Adgate, J.L., Ramachandran, G., Stock, T.H., Morandi, M., Sexton, K. “Comparing air dispersion model predictions with measured concentrations of VOCs in urban communities.” Environmental Science and Technology, 38:1949-1959, 2004.

8. Sexton, K., Adgate, J.L., Ramachandran, G., Pratt, G.C., Mongin, S.J., Stock, T.H., Morandi, M.T., “Comparison of personal, indoor, and outdoor exposures to hazardous air pollutants in three urban communities”, Environmental Science and Technology, 38:423-430, 2003.

9. Ramachandran, G., Sudipto Banerjee, and James H. Vincent, “Expert judgment and occupational hygiene: Application to aerosol speciation in the nickel primary production industry”, Annals of Occupational Hygiene, 47:461-475, 2003.

10. Adgate, J.L., Ramachandran, G., Pratt, G. C., Waller, L. A., and Sexton, K. “Longitudinal variability in outdoor, indoor, and personal PM2.5 exposure in healthy non-smoking adults”, Atmospheric Environment, 37:993-1002, 2003.

11. Ramachandran, G., Adgate, J.L., Pratt, G.C., and Sexton, K. “Characterizing indoor and outdoor 15-minute average PM2.5 concentrations in urban neighborhoods”, Aerosol Science and Technology, 37:33-45, 2003.

12. Ramachandran, G., and Watts, W.F. “Statistical comparison of diesel particulate matter measurement methods”, American Industrial Hygiene Association Journal, 64:329-337, 2003.

13. Adgate, J.L., Ramachandran, G., Pratt, G.C., Waller, L.A., and Sexton, K. “Spatial and temporal variability in outdoor, indoor, and personal PM2.5 exposure”, Atmospheric Environment, 36: 3255-3265, 2002.

14. Sreenath, A., Ramachandran, G., and Vincent, J.H. “Aspiration characteristics of idealized blunt aerosol samplers at large angles to the wind”, Journal of Aerosol Science, 33:81-881, 2002

15. Vincent, J.H., Ramachandran, G., Kerr, S.M. “Particle size and chemical species ‘fingerprinting’ of aerosols in primary nickel production industry workplaces”, Journal of Environmental Monitoring, 3:565-574, 2001.

16. Ramachandran G., “Retrospective exposure assessment using Bayesian methods”, Annals of Occupational Hygiene, 45(8): 651-667, 2001.

17. Cross, D.P., Ramachandran, G., Wattenberg, E.V. “Mixtures of nickel and cobalt chlorides induce synergistic cytotoxic effects: Implications for inhalation exposure modeling”, Annals of Occupational Hygiene, 45(5): 409-418, 2001

18. Sreenath, A., Ramachandran G., and Vincent, J.H.,“Experimental study of sampling losses in thin-walled probes at varying angles to the wind”, Aerosol Science and Technology, 35:767-778, 2001.

19. Kandlikar, M., and Ramachandran G., “The causes and consequences of particulate air pollution in urban India: A synthesis of the science", Annual Review of Energy and Environment, Vol. 25: 629-684, 2000.

20. Ramachandran, G., Adgate, J.L., Pratt, G.C., Hill, N., Bock, D., and Sexton, K. “Comparison of short-term variations (15-minute averages) in outdoor and indoor PM2.5 concentrations", Journal of the Air and Waste Management Association, 50:1157-1166, 2000.

BOOK
Ramachandran G., Occupational Exposure Assessment for Air Contaminants. CRC-Lewis Publishers. May 2005.