5 edition of Tropospheric ozone research found in the catalog.
|Statement||Øystein Hov, editor ; TOR Steering Group, Dieter Kley (coordinator) ... [et al.].|
|Series||Transport and chemical transformation of pollutants in the troposphere ;, v. 6|
|LC Classifications||QC879.7 .T76 1997|
|The Physical Object|
|Pagination||xxiv, 499 p. :|
|Number of Pages||499|
|LC Control Number||97027733|
Tropospheric Ozone Pollution. Ozone is formed in the troposphere when sunlight causes complex photochemical reactions involving oxides of nitrogen (NOx), volatile organic hydrocarbons (VOC) and carbon monoxide that originate chiefly from gasoline engines and burning of other fossil fuels. Woody vegetation is another major source of VOCs. Tropospheric ozone Ozone (O3) is a key constituent of the troposphere. Photochemical and chemical reactions involving it drive many of the chemical processes that occur in the atmosphere by day.
Analysts1 a the observed tropospheric ozone distribution has revealed that concentrations in the Northern Hemisphere were heger titan in the Southern Hemisphere. This finding and the earlier. Tracking Tropospheric Ozone Since Stratospheric ozone depletion between and resulted in a slight decrease of ozone in the troposphere during that period despite increased ozone.
GRIDDED TROPICAL DATA: Data for the above tropospheric column ozone images can be obtained at this website. The data (see DATA DOCUMENTATION) represent monthly-means with a resolution of 5 degrees latitude by 5 degrees longitude and are printed in ASCII format for both TROPOSPHERIC and STRATOSPHERIC column measurements. Stratospheric column ozone . Ozone depletion events (ODEs) in the springtime of the Arctic have been frequently observed since the early s, and the correlation between the ozone mixing ratio during the ODEs and the nitrogen oxides (NOx) concentration is still unclear. In the present study, the role of the background level of NOx in ODEs was investigated by using a box model implementing a .
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Tropospheric Ozone Research: Tropospheric Ozone in the Regional and Sub-regional Context (Transport and Chemical Transformation of Pollutants in the Troposphere Book 6) - Kindle edition by Hov, 0ystein. Download it once and read it on your Kindle device, PC, phones or tablets.
The present volume reviews several of the currently important questions and presents detailed reports from investigators all over the continent. As such, it provides insight into the current scientific views about ozone in Europe. This is Volume 6 of the series on the Transport and Chemical Transformation of Pollutants in the Troposphere.
In this book, the Tropospheric ozone research book describe the features and the application of a methodology and a model system to identify effective and efficient strategies to reduce ambient concentrations of tropospheric ozone to comply with thresholds set up to protect human health, agricultural crops and ecosystems.
Ozone (/ ˈ oʊ z oʊ n /), or trioxygen, is an inorganic molecule with the chemical formula O is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope O 2, breaking down in the lower atmosphere to O 2 ().Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Chemical formula: O₃.
1. Introduction. Understanding the behavior of ozone in the urban boundary layer is necessary to develop effective air pollution control strategies in cities throughout the world (e.g.
WHO,Royal Society,EPA, ).Tropospheric ozone is an important secondary air pollutant formed from primary emissions (natural and anthropogenic) of volatile organic Cited by: 3.
The research used the hourly values of automatic measurements of the tropospheric ozone immis- sion in the years – The data originated.
Sonal Kumari, Nidhi Verma, Anita Lakhani, Suresh Tiwari, Maharaj Kumari Kandikonda, Tropospheric ozone enhancement during post-harvest crop-residue fires at two downwind sites of the Indo-Gangetic Plain, Environmental Science and Pollution Research, /sy, (). Tropospheric ozone (TO) is a pervasive secondary air pollutant, which has a lifespan of twenty-three days (Young et al., ).
Its effect ranges from local to global, disregarding geographical and political boundaries (Finneran, ). Tropospheric ozone is a short-lived climate pollutant with an atmospheric lifetime of hours to weeks. It does not have any direct emissions sources, rather it is a secondary gas formed by the interaction of sunlight with hydrocarbons – including methane – and nitrogen oxides, which are emitted by vehicles, fossil fuel power plants, and other man-made sources.
Tropospheric ozone develops during photochemical reactions between nitrogen oxides and volatile organic compounds. Acid deposition can affect soil and water acidity (Driscoll and others ), and ozone can cause foliar injury (Chappelka and SamuelsonCleveland and GraedelLefohn and Pinkerton ).
A coherent and focused national research program with a long-term perspective is needed to provide government agencies with a better understanding of tropospheric ozone formation, transport, and accumulation. Progress toward reducing ozone concentrations in the United States has been severely hampered by the lack of such a program.
An improved understanding of the global tropospheric ozone budget has recently become of great interest, both in Canada and elsewhere. this remains an area of very active research.
Since ozone. Ground level or tropospheric ozone is created by chemical reactions between oxides of nitrogen (NOx gases) and volatile organic compounds (VOCs).
The combination of these chemicals in the presence of sunlight form ozone. Its concentration increases as height above sea level increases, with a maximum concentration at the tropopause. With a wealth of technical information, the book discusses atmospheric chemistry, the role of oxides of nitrogen (NOx) and volatile organic compounds (VOCs) in ozone formation, monitoring and modeling the formation and transport processes, and the potential contribution of alternative fuels to solving the tropospheric ozone problem.
Tropospheric ozone and related processes. In Scientific assessment of ozone depletion: World Meteorological Organization. Global ozone research and monitoring project, report no. A full understanding of recent changes to the tropospheric ozone burden requires detailed analysis of the tropospheric ozone budget, including quantification of the chemical production and loss fluxes, stratosphere‐troposphere exchange (STE), and the deposition of ozone at the surface.
A key component of the Tropospheric Ozone Assessment Report (TOAR) is the consistent calculation of these metrics at thousands of monitoring sites globally. Investigating temporal trends in these metrics required that the same statistical methods be applied across these ozone monitoring sites.
We review how climate change could affect future concentrations of tropospheric ozone and particulate matter (PM), and what changing concentrations could mean for population health. DATA SOURCES: We review studies projecting the impacts of climate change on air quality and studies projecting the impacts of these changes on morbidity and mortality.
The above data files contain 2-D gridded global tropospheric ozone residual (TOR) data in Dobson Units derived from Version 7 EP-TOMS and collocated SBUV measurements. The monthly files contain 12 arrays (Jan-Dec), while the seasonal files contain 4 arrays (DFJ, MAM, JJA, SON).
The monthly time elements arewhile the seasonal are Dr. Supriya Tiwari is an Assistant Professor in the Department of Botany at Banaras Hindu University, India.
Her research focuses on the formation of ozone and its effects on plant productivity in India. Her evaluations of ozone crop injury and ozone induced yield reductions have made a significant contribution in the planning of sustainable agriculture strategies, cultivation of ozone. RESEARCH NEEDS.
°oo TROPOSPHERIC CHEMISTRY INTRODUCTION Recent concerns about changes in atmospheric ozone focus not only on the total column of ozone, The sources of tropospheric ozone are transport from the stratosphere across the tropopause, and in situ photochemical production.
Ozone is removed from the troposphere by.Nearly major cities in the United States are periodically exposed to concentrations of ozone that exceed health-based air-quality standards. According to the U.S. EPA, million people lived in areas designated "non-attainment" for ozone in EPA/Airtrends; Formation of tropospheric ozone.
chemistry of ozone formation (Ozone cycle).Ozone can be “good” or “bad” for health and the environment depending on where it’s found in the atmosphere. Stratospheric ozone is “good” because it protects living things from ultraviolet radiation from the sun.
Ground-level ozone, the topic of this website, is “bad” because it can trigger a variety of health problems, particularly for children, the elderly, and people of.