3 edition of Photochemical oxidant air pollution found in the catalog.
Photochemical oxidant air pollution
by sold by OECD Publications Center]
|The Physical Object|
|Number of Pages||93|
air quality criteria for photochemical oxidants u. s. department of health, education, and welfare public health service environmental health service discussion 6—6 d. problems in diagnosis and assessment of the eco- nomic impact of photochemical air pollution on vegetation e. dose-injury relationships of photochemical air pollution. Ozone (O 3) is present throughout the atmosphere although there are concentration peaks at two levels, the stratosphere (15 - 50 km) and troposphere ( km), with the largest fraction and concentrations being in the stratospheric O 3 layer (Royal Society, ). Stratospheric O 3 is important as it regulates the transmittance of ultraviolet light to the surface of the earth.
EPA/ September PHOTOCHEMICAL OXIDANT AIR POLLUTANT EFFECTS ON A MIXED CONIFER FOREST ECOSYSTEM A Progress Report Scientific Editor Paul R. Miller Technical Editor Michael J. Elderman Principal Authors: Paul R. Miller, Ronald N. Kickert, 0. While air pollution from coal no longer plagues urban areas, that from diesel vehicles and other aspects of modern life, including precursor chemicals, which give rise to photochemical oxidants, exact a major avoidable price on our health.
The photochemical oxidants are secondary air pollutants formed by the action of sunlight on nitrogen oxides and reactive hydrocarbons, their precursors. The most important phytotoxic components produced by these atmospheric photochemical reactions are . Photochemical Smog is a type of air pollutant. The word "smog" was coined in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky fog, its opacity, and odour. The word was then intended to refer to what was sometim.
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About this book. Photochemical oxidants are secondary air pollutants formed under the influence of sunlight by complex photochemical reactions in air which contains nitrogen oxides and reactive hydrocarbons as precursors.
Buy Air Pollution by Photochemical Oxidants: Formation, Transport, Control, and Effects on Plants (Ecological Studies) on FREE SHIPPING on qualified orders Air Pollution by Photochemical Oxidants: Formation, Transport, Control, and Effects on Plants (Ecological Studies): Robert Guderian: : Books.
The volume includes: basic introductions to the biochemistry and physics of biogenic and anthropogenic production of photochemical oxidant precursors; room-temperature rate coefficients for gas-phase reactions as an aid to intercomparison; the synthesis of recent observations of photochemical oxidants over all spatial and temporal scales of interest; and Cited by: Photochemical oxidants are secondary air pollutants formed under the influence of sunlight by complex photochemical reactions in air which contains nitrogen oxides and reactive hydrocarbons as precursors.
The most adverse components formed by photochemical reactions in polluted air are ozone (0). Describes the observed behaviour of photochemical oxidants, especially ozone, on the urban, regional and global scales.
The volume includes basic introductions to the biochemistry and physics of Read more. Photochemistry of Air Pollution provides information pertinent to air pollution and atmospheric chemistry.
This book discusses the photochemical reactions produced by sunlight may convert relatively harmless pollutants into substances that constitute a nuisance, create possible health hazard, and cause economic problem to humans.
Air pollution information designed to aid in the developing of techniques to forecast meteorological conditions which could produce photochemical problems is presented.
These pollutants result from complex chemical reactions and their character can. Air Pollution by Photochemical Oxidants, Edited by Robert Guderian, with contributions by K.H.
Becker, W. Fricke, R. Guderian, J.L. Lobeo, R. Rabe, J. Schurath & D.T Author: Michael Treshow. Pollution. The yield and quality of flowers, fruits, cones, and seeds often are decreased by exposure to pollutants in the air and soil.
For example, photochemical oxidants reduced yields of oranges and lemons by as much as half because of premature leaf and fruit drop (Thompson and Taylor, ). air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health.
the photochemical oxidants, among them ozone and the eye-stinging peroxyacetylnitrate (PAN). Nitrogen oxides also react with oxygen in the air to form nitrogen dioxide, a foul.
This chapter emphasizes the use of animal models that can be rendered more susceptible to air pollution health effects. Much of the understanding of the toxicity of major air pollutants, such as tropospheric ozone, sulfur dioxide, nitrogen dioxide, particulate matter.
There has never been a greater interest in the subject matter of this book, with growing concern in many parts of the world over the effects of photochemical oxidants on health, ecosystems, agriculture and materials as well as their role in the formation of other secondary forms of air pollution, notably those resulting in 'acid rain'.
Get this from a library. Photochemical oxidants and air pollution: an annotated bibliography. [Air Pollution Technical Information Center.] -- About references, intended as a balanced sample of available literature mostly from the period Foreign literature is included.
Entries are arranged under topics. Author, title. photochemical oxidants General description Sources Ozone (O3) is a strong oxidizing agent.
In the troposphere, it is formed through a complex series of reactions involving the action of sunlight on nitrogen dioxide (NO2) and hydrocarbons. There are no significant anthropogenic emissions of ozone.
Ozone-producing. Photochemistry of Air Pollution provides information pertinent to air pollution and atmospheric chemistry.
This book discusses the photochemical reactions produced by sunlight may convert relatively harmless pollutants into substances that constitute a nuisance, create possible health hazard, and cause economic problem to Edition: 1.
The second part of this vol (No in the Ecological Studies series) is contributed by R. Guderian, D.T. Tingey and R. Rabe, and deals with the effects of photochemical oxidants on plants () under the headings mode of action; diagnosis, surveillance and estimation of effects; factors influencing plant reponses; effects of pollutant combinations; and dose-reponse relationships.
Photochemical Oxidants and Air Pollution: An Annotated Bibliography. Part 1. Categories A through F,U.S.
Environmental Protection Agency, US EPA Air Pollution Control Office Publication, AP pages. US EPA. Photochemical oxidant is a secondary pollution produced in the air when the nitrogen oxides (NOx) and the hydrocarbon (H.C) emitted largely by automobiles react to the ultra violet rays ( nm) of the sunlight.
The photochemical oxidant of main interest within LCA is ground level ozone (O 3) caused by the emission of the air pollutants NO x and NMVOC within life cycles of products and services.
Several different LCIA methods have been developed in the last 20 years to characterise this impact by: 4. The influence of H/sub 2/O on oxidant production underwent a change at about grams per gram of air. Below this concentration, increasing water concentration generally promoted oxidant production in the system; increase of water concentration above apparently produced a quenching effect.
Photochemical oxidants are formed through the concentration of a variety of highly reactive gases in the atmosphere and are often implicated in problems of smog, crop damage and the degradation of works of art.
Smog is air pollution consisting of smoke and fog.In FebruaryEPA released the final document, Air Quality Criteria for Ozone and Other Photochemical Oxidants.
Tropospheric or surface-level ozone (O3) is one of six major air pollutants regulated by National Ambient Air Quality Standards (NAAQS) under the .anthropogenic sources. As the major component of the photochemical oxidants is ozone, it is used as the indicator of photochemical smog and air quality standards today are therefore based on ozone.
Another important photochemical oxidant is peroxyacetyl nitrate (PAN).