Acute inhibition of apparent photosynthesis by phytotoxic air pollutants

Conference · Tue Jan 01 04:00:00 EST 1974 · ACS Symp. Ser.; (United States)

OSTI ID:5934597

Bennett, J H; Hill, A C

Sublethal plant exposures to a number of phytotoxic air pollutants can cause the reversible suppression of one of life's most basic processes - photosynthesis. The possibility of plant growth suppression by atmospheric pollution is a concern of many people. We need to know if subnecrotic pollutant exposures that may occur in ambient air can repress photosynthesis rates sufficiently to cause significant retardation of plant growth. Some insight into the capability for short-term exposures to HF, Cl/sub 2/, O/sub 3/, SO/sub 2/, NO/sub 2/ and NO - applied singly and as dual pollutant mixtures - to suppress apparent photosynthesis rates of several important crop species is presented here. 23 references, 3 tables.

• Research Organization: Dept. of Agriculture, Beltsville, MD
• OSTI ID: 5934597
• Report Number(s): CONF-740349-
• Conference Information: Journal Name: ACS Symp. Ser.; (United States) Journal Volume: 3
• 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.
ACUTE EXPOSURE
AIR POLLUTION
BIOLOGICAL EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE
COMPARATIVE EVALUATIONS
CROPS
ELEMENTS
GROWTH
HALOGENS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INHIBITION
INORGANIC ACIDS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
OXIDES
OXYGEN COMPOUNDS
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANT GROWTH
POLLUTION
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNTHESIS
TOXICITY