Extent of ozone injuries in Pinus strobus populations of five eastern national parks in 1986. Final report, June-September 1986

Technical Report · Wed Feb 01 04:00:00 EST 1989

OSTI ID:6369377

Sanchini, P J

In mid-1986, a total of 2413 random samples of Eastern white pine foliage was taken from five National Parks-Acadia National Park (ACAD), Shenandoah National Park (SHEN), Great Smoky Mountains National Park (GRSM), Cuyahoga Valley National Recreation Area (CUVA), and Indiana Dunes National Lakeshore (INDU). Samples were evaluated for presence and severity of ozone injury symptoms: chlorotic mottle and tipburn. Percent needle area occupied by these symptoms was estimated visually in the field. Although an average of 67% of the trees evaluated showed some ozone injury, the severity of injury to needles averaged less than 10% of needle area. Injury at ACAD in 1986 was significantly less than 1985 injury, suggesting that either the permanent plot trees do not provide an unbiased sample of tree conditions at ACAD, or that ozone exposures in 1985 exceeded 1986 exposures. However, the 1986 study accomplished the goal of significantly increasing the sample sizes obtained at each Park.

• Research Organization: Butler Univ., Indianapolis, IN (USA). Holcomb Research Inst.
• OSTI ID: 6369377
• Report Number(s): PB-90-265133/XAB; HRI--150; CNN: NPS-CX-0001-4-0058
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
CHLOROSIS
CONIFERS
DOCUMENT TYPES
FORESTS
LEAVES
NATURE RESERVES
OZONE
PATHOLOGICAL CHANGES
PINES
PINOPHYTA
PLANTS
POLLUTION
PRODUCTIVITY
PROGRESS REPORT
RESOURCES
SENSITIVITY
TOXICITY
TREES