Calabrese, E.J. and E.E. Kenyon. The perils of state air toxics
programs. Environmental Science & Technology. 23(11):1323-1328. 1989.
Castleman, B.I. and G.E. Ziem. American Conference of Governmental
Industrial Hygienists - Low threshold of credibility.
American Journal Of Industrial Medicine. 26(1):133-143. 1994.
Rappaport, S.M. Threshold Limit Values, Permissible Exposure Limits, and
feasibility - The bases for exposure limits in the United States.
American Journal of Industrial Medicine. 23(5):683-694. 1993.
Roach, S.A. and S.M. Rappaport. But they are not thresholds - A critical
analysis of the documentation of Threshold Limit Values. American
Journal of Industrial Medicine. 17(6):727-753. 1990.
Robinson, J.C. and D.G. Paxman. The role of Threshold Limit Values in
United States air pollution policy. American Journal of Industrial
Medicine. 21(3):383-396. 1992.
Rowan, C.A., W.M. Connolly and H.S. Brown. Evaluating the use of
occupational standards for controlling toxic air pollutants.
Journal of Environmental Science and Health. B19(7):611-648. 1984.
Ziem, G.E. and B.I. Castleman. Threshold Limit Values - Historical
perspectives and current practice. Journal of Occupational
Medicine. 31(11):910-918. 1989.
