Acute and chronic sulfur dioxide fumigation of Pi{tilde n}on pine seeds and seedlings: Data compilation

Technical Report · Wed Sep 01 04:00:00 EDT 1993

DOI:https://doi.org/10.2172/10179620· OSTI ID:10179620

Trujillo, M L; Ferenbaugh, R W; Gladney, E S ^[1]; Bowker, R G ^[2]

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1. Los Alamos National Lab., NM (United States)
2. Alma Coll., MI (US). Dept. of Biology

Pi{tilde n}on pine germinating seeds, emergent seedlings, and one-year-old seedlings were exposed to sulfur dioxide under both acute and chronic exposure conditions. These fumigations were conducted in order to determine the potential for damage to pi{tilde n}on pine in southwestern national parks and monuments where there is potential for exposure to elevated sulfur dioxide concentrations from smelters and power plants. Injury was apparent only in acute fumigations of one-year-old seedlings at ambient sulfur dioxide concentrations of greater than 3 ppm. Chronic fumigations were conducted only a ambient concentrations of 0.2 ppm. Pi{tilde n}on pine resistance was evidenced by lack of effect of fumigation on biomass and growth parameters. Growth rate data for both experimental and control seedlings were fit to a linear growth model with a correlation (r{sup 2} = 0.95). The results of this study agree with other data in the literature and indicate that damage from elevated sulfur dioxide concentrations in southwestern national parks and monuments is much more likely for other, more sensitive, species than for pi{tilde n}on pine.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: Department of the Interior, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10179620
• Report Number(s): LA--12615-MS; ON: DE93019359
• Country of Publication: United States
• Language: English

Related Subjects

560300
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACUTE EXPOSURE
AGE DEPENDENCE
CHEMICALS METABOLISM AND TOXICOLOGY
CHRONIC EXPOSURE
COMPILED DATA
MATHEMATICAL MODELS
NATURE RESERVES
PINES
PLANT GROWTH
SEEDLINGS
SEEDS
SENSITIVITY
SULFUR DIOXIDE
TOXICITY