Absorption of gaseous pollutants by individual leaves; sulfur dioxide

Journal Article · Tue Jan 01 04:00:00 EST 1974 · Phytopathology; (United States)

OSTI ID:6499364

Roberts, B R

Foliar uptake of sulfur dioxide (SO/sub 2/) was measured in an open-fumigation system at 1.0 ppm. Container-grown seedlings of white birch (Betula papyrifera); red maple (Acer rubrum); white ash (Fraxinus americana); sweetgum (Liquidambar styraciflua); rosebay rhododendron (Rhododendron maximum); kurkume azalea (Rhododendron obtusum japonicum Venus); privet (Ligustrum vulgare); and firethorn (Pyracantha angustifolia) were used in this study. Maple, birch, and sweetgum showed appreciably greater vegetal uptake of SO/sub 2/ on a unit area or unit weight basis than did comparable species of rhododendron, ash, and azalea. Privet and firethorn showed an intermediate response. Under controlled environmental conditions, depletion of SO/sub 2/ by foliage of firethorn remained relatively constant for periods up to 6 h. There was no significant difference in the capacity of foliage from white ash and azalea to remove SO/sub 2/ from the air at pollutant concentrations of 1.0, 0.5, and 0.2 ppm. However, leaves of birch and firethorn showed significantly less SO/sub 2/ uptake at 0.2 ppm compared with uptake at the higher concentrations.

• Research Organization: USDA, Delaware, OH
• OSTI ID: 6499364
• Journal Information: Phytopathology; (United States), Journal Name: Phytopathology; (United States) Vol. 64:5; ISSN PHYTA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
AIR POLLUTION
CHALCOGENIDES
COMPARATIVE EVALUATIONS
LEAVES
OXIDES
OXYGEN COMPOUNDS
PLANTS
POLLUTION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TREES