The False Positive in Bioindicators of Air Pollution
Hacker WD and Neufeld HS. 1992. The False Positive in Bioindicators of Air Pollution. Journal of Arboriculture. 18(5):249-251
ABSTRACT: Yellow-poplar {Liriodendron tulipifera) seedlings were fumigated with a gradient of ozone to determine what effect ozone has on the species. The fumigated seedlings displayed physical symptoms of ozone injury but a large number of the individuals from the charcoal-filtered treatment showed physical symptoms of ozone when indeed no ozone was present. This is an indication that what appears to be ozone damage on yellow-poplar may not be caused by ozone.
- Type
- Journal Article
- Authors
- Hacker, W; Neufeld, Howard
- Units
- GRSM
- Keywords
- air pollution, air quality, APHN, Appalachian Highlands Network, bioindicator, Great Smoky Mountains National Park, GRSM-00269, LGRSM, Liriodendron tulipifera, ozone, SER, Southeast Region, yellow poplar