1. Health effects of particulate pollution: reappraising the evidence;Holland;Am J Epidemiol,1979
2. 2006 National Ambient Air Quality Standards for Particle Pollution. Available at: http://www.epa.gov/ttn/ecas/regdata/RIAs/Executive%20Summary.pdf. Accessed 29 December 2009.
3. Office of Information and Regulatory Affairs. 2007 Report to Congress on the Benefits and Costs of Federal Regulations and Unfunded Mandates on State, Local, and Tribal Entities. In: Office of Management and Budget, ed. Washington (DC); 2007.
4. Air Quality Criteria for Particulate Matter;U.S. Department of Health Education and Welfare,1969
5. Report on Joint Hearings on the Conduct of the Environmental Protection Agency's Community Health and Environment Surveillance System (CHESS) Studies. Washington (DC): April 9, 1976.