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"Tennessee Agrees to Air Quality Plan." National Parks 71, no. 5-6 (1997): 20-21.
Amphibian Monitoring in Great Smoky Mountains National Park In Planning for the Seventh Generation: The Upper Great Lakes Region 25th Annual Natural Areas Association Conference. Mackinac Island, MI: Natural Areas Association, 1998.
An Appalachian Tragedy : Air Pollution and Tree Death in the Eastern Forests of North America. San Francisco, CA: Sierra Club Books, 1998.
Clearing the Air: Protecting a National Jewel. National Parks and Conservation Association, 1999.
"Parks Are for the Birds." National Parks 73, no. 3-4 (1999): 26-29.
"Aerosol Light Scattering Measurements as a Function of Relative Humidity." Journal of the Air & Waste Management Association 50, no. 5 (2000): 710-716.
"An Analysis of the Yearly Changes in Sulfur Concentrations at Various National Parks in the United States, 1980-1996." Journal of the Air & Waste Management Association 50, no. 5 (2000): 790-801.
"Color Perception Through Atmospheric Haze." Journal of the Optical Society of America a-Optics Image Science and Vision 17, no. 5 (2000): 831-835.
"NPCA Files Suit Against TVA for Smokies Pollution." National Parks 74, no. 11-12 (2000): 12-13.
"Optical Measurements of Aerosol Size Distributions in Great Smoky Mountains National Park: Dry Aerosol Characterization." Journal of the Air & Waste Management Association 50, no. 5 (2000): 665-676.
"Surviving Great Smoky." New Scientist 167, no. 2245 (2000): 14-15.
"Unhealthy Air Awaits Visitors at Great Smokies." National Parks 74, no. 7-8 (2000): 11-12.
Air Pollution: Air Quality and Respiratory Problems In and Near the Great Smoky Mountains. Washington, D.C.: The Office, 2001.
"Bad Air Days." National Parks 75, no. 5-6 (2001): 32-35.
Great Smoky Mountains National Park Look Rock: 2001 National Park Service Gaseous Air Pollutant Monitoring Network In Annual Data Summary. Lakewood, CO: National Park Service, 2001.
"Purple Heart." Wildlife in North Carolina 65, no. 3 (2001): 12-15.
"The Clean Air Challenge." National Parks 76, no. 11-12 (2002): 16-17.
Code Red: America's Five Most Polluted National Parks. Appalachian Voices, National Parks Conservation Association, Our Children's Earth Foundation, 2002.
"Losing the Forest and the Trees." National Parks 76, no. 11-12 (2002): 18-22.
"Great Smokies Species Numbers Continue to Climb." In Natural Resource Year in Review - 2002: A Portrait of the Year in Natural Resource Stewardship and Science in the National Park System, edited by Natural Resource Information Division, 20. Washington, D.C.: National Park Service, 2003.
"Ten Most Endangered." National Parks 77, no. 3-4 (2003): 24-25.
Code Red! : America's Five Most Polluted National Parks. Appalachian Voices, 2004.
"The Effect of Switching Mobile Sources to Natural Gas on the Ozone in the Great Smoky Mountains National Park." Proceedings of the Air and Waste Management Association's Anual Meeting and Exhibition (2004): 5247-5259.
"Natural Background Visibility and Regional Haze Goals in the Southeastern United States." Journal of the Air & Waste Management Association 55, no. 11 (2005): 1600-1620.
"Using Scenarios to Assess the Impact of Air Pollution in the Great Smoky Mountains National Park." Public Works Management & Policy 10, no. 2 (2005): 170-185.
