Air quality criteria and standards for agriculture
| Autor: | L. O. Emik, O. C. Taylor, J. T. Middleton |
|---|---|
| Rok vydání: | 1965 |
| Předmět: |
Pollution
Peroxyacetyl nitrate Pollutant Environmental Engineering Ozone media_common.quotation_subject Air pollution Forage Agriculture medicine.disease_cause chemistry.chemical_compound chemistry Environmental chemistry Air Pollution medicine General Earth and Planetary Sciences Environmental science Air quality index Peroxyacyl nitrates General Environmental Science media_common |
| Zdroj: | Journal of the Air Pollution Control Association. 15(10) |
| ISSN: | 0002-2470 |
| Popis: | Many food, fiber, forage, and forest crops and a number of animals are adversely affected by a variety of air pollutants. The more important and generally occurring of these pollutants are ethylene, fluorides, ozone, peroxyacyl nitrates (PAN), and sulfur oxides. Their effects upon animals and plants can best be judged by criteria which describe the reaction of biologic materials to pollutant concentration and exposure time. Four criteria are recognized: (1) interference with enzyme systems; (2) change in cellular chemical constituents and physical structure; (3) retardation of growth and reduction in production from altered metabolism; and (4) acute immediate tissue degeneration. Information on tissue degenerative effects due to these pollutants is the most common; there are some reports on growth and productivity reduction; but little data are available on cellular alterations and interference with enzymes. Determination and measurement of the latter two criteria are essential to the ultimate definition ... |
| Databáze: | OpenAIRE |
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