RT Journal Article
SR Electronic
T1 The False Positive in Bioindicators of Air Pollution
JF Arboriculture & Urban Forestry (AUF)
JO JOA
FD International Society of Arboriculture
SP 249
OP 251
DO 10.48044/jauf.1992.048
VO 18
IS 5
A1 W. David Hacker
A1 Howard S. Neufeld
YR 1992
UL http://auf.isa-arbor.com/content/18/5/249.abstract
AB Yellow-poplar (Lirodendron 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.