Effects of oxidant air pollutants

Journal Article · Sun Sep 01 04:00:00 EDT 1968 · JOM, J. Occup. Med.; (United States)

DOI:https://doi.org/10.1097/00043764-196809000-00009· OSTI ID:6290610

Taylor, O C

An overview is presented of the group of oxidants which causes the most damage to plants. The major toxicants generated by the photochemical reaction of a mixture of nitrogen dioxide and reactive hydrocarbon are ozone and peroxyacetyl nitrate. Ozone is estimated to be responsible for 85-90% of the total oxidizing potential of the polluted atmosphere as measured by the standard procedure involving the release of iodine from a buffered potassium iodide solution. Peroxyacetyl nitrate and nitrogen dioxide account for only a small percentage of the remaining oxidizing potential. Plant injury is produced with very low concentrations (pphm of ozone and ppb of PAN) in ambient atmospheres. Factors affecting response to pollutants are discussed. Separate discussions of this study are provided by H.E. Heggestad and W.W. Heck. 16 references, 1 figure, 3 table.

• Research Organization: Univ. of California, Riverside
• OSTI ID: 6290610
• Journal Information: JOM, J. Occup. Med.; (United States), Journal Name: JOM, J. Occup. Med.; (United States) Vol. 10:9; ISSN JJOMD
• 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.
AIR POLLUTION
CHALCOGENIDES
CHEMICAL REACTIONS
ESTERS
INJURIES
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PEROXYACETYL NITRATE
PHOTOCHEMICAL OXIDANTS
PHOTOCHEMICAL REACTIONS
PLANTS
POLLUTION
RESPONSE MODIFYING FACTORS
TOXICITY