Assessment of air pollution injury to eastern white pine in Indiana
Eastern white pine is known to be sensitive to gaseous air pollutants such as sulfur dioxide and ozone. Therefore, nine stands of white pine were chosen in various localities of the southern half of Indiana to attempt to determine the present day injury caused by: 1) normal background concentrations of ozone and/or other air pollutants; 2) source emissions of sulfur dioxide (coal-fired power plants) in conjunction with low and high concentrations of ozone; and 3) the air pollution associated with a major urban center, Indianapolis. Symptoms of air pollution recorded include: 1) degree of flecking; 2) tip chlorosis and tip necrosis; and 3) retention of previous season's needles. The least amount of air pollution injury was found near Bloomington, with moderate amounts being found at Alamo, Lizton, Petersburg, Prairie Creek and Madison. The worst air pollution injury was associated with Indianapolis. Factors other than amount of air pollution enter into the degree of injury noted within a stand and, hence influence the placement of areas into low, medium and high air pollution zones.
- Research Organization:
- Butler Univ., Indianapolis, IN
- OSTI ID:
- 5439176
- Journal Information:
- Proc. Indiana Acad. Sci.; (United States), Journal Name: Proc. Indiana Acad. Sci.; (United States)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
LEAVES
CHLOROSIS
NECROSIS
OZONE
POLLUTION SOURCES
TOXICITY
PINES
SENSITIVITY
SULFUR DIOXIDE
AIR POLLUTION
ECOLOGICAL CONCENTRATION
GEOGRAPHICAL VARIATIONS
INDIANA
CHALCOGENIDES
CONIFERS
FEDERAL REGION V
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PATHOLOGICAL CHANGES
PLANTS
POLLUTION
SULFUR COMPOUNDS
SULFUR OXIDES
TREES
USA
VARIATIONS
560300* - Chemicals Metabolism & Toxicology
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)