Understanding The Fate Of Persistent Organic Pollutants In Temperate And Tropical Mountains PDF Download
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Author | : Gillian Lynn Daly |
Publisher | : |
Total Pages | : 430 |
Release | : 2007 |
Genre | : |
ISBN | : 9780494278901 |
Download Understanding the Fate of Persistent Organic Pollutants in Temperate and Tropical Mountains Book in PDF, ePub and Kindle
Mountains are ideal settings to study contaminant transport and behavior along gradients of climate and surface cover. In both the mountains of Western Canada and Central America, surface soil samples were collected along several elevational gradients and air was sampled for an entire year using XAD-based passive air samplers. The soil and XAD extracts were analyzed for PAHs and organochlorine pesticides in past and present use. Field results and computer modeling point to windows of enhanced contaminant accumulation at high altitudes for compounds with an equilibrium air-water partition cooefficient at 25°C between 10-3 and 10-6 and an octanol-air partition coefficient between 10+9 and 10+11, in both temperate and tropical locations. Chemicals with partitioning properties in these ranges are not efficiently scavenged at the temperature prevalent in the lowlands. They travel upslope with prevailing winds and, at the low temperatures of high elevations, scavenging efficiency increases, and the chemicals are deposited onto soil. Modeling results show maximum mountain accumulation for mountains with a large temperature range and greatest increase in precipitation with altitude. Lower precipitation rates increase air/soil concentration ratios of organochlorine pesticides on the eastern side of the continental divide in western Canada. Snow plays an important role in contaminant accumulation in temperate mountains, by efficiently scavenging organic contaminants at low temperatures. The snow pack functions as a temporary storage reservoir that releases contaminants accumulating over the winter, which may result in temporarily elevated concentrations in air, water and soil. Contaminant signatures differ in tropical mountains due to different source contribution. Tropical soils have a higher relative abundance of lighter PAHs compared to temperate locations, a result of greater source contribution from biomass burning in the tropics, as well as preferential loss of lighter PAHs from temperate soils that experienced high deposition in the past.
Author | : |
Publisher | : DIANE Publishing |
Total Pages | : 167 |
Release | : 2002 |
Genre | : Global environmental change |
ISBN | : 1428900411 |
Download The Foundation for Global Action on Persistent Organic Pollutants Book in PDF, ePub and Kindle
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 248 |
Release | : 2010-02-15 |
Genre | : Nature |
ISBN | : 0309144019 |
Download Global Sources of Local Pollution Book in PDF, ePub and Kindle
Recent advances in air pollution monitoring and modeling capabilities have made it possible to show that air pollution can be transported long distances and that adverse impacts of emitted pollutants cannot be confined to one country or even one continent. Pollutants from traffic, cooking stoves, and factories emitted half a world away can make the air we inhale today more hazardous for our health. The relative importance of this "imported" pollution is likely to increase, as emissions in developing countries grow, and air quality standards in industrial countries are tightened. Global Sources of Local Pollution examines the impact of the long-range transport of four key air pollutants (ozone, particulate matter, mercury, and persistent organic pollutants) on air quality and pollutant deposition in the United States. It also explores the environmental impacts of U.S. emissions on other parts of the world. The book recommends that the United States work with the international community to develop an integrated system for determining pollution sources and impacts and to design effective response strategies. This book will be useful to international, federal, state, and local policy makers responsible for understanding and managing air pollution and its impacts on human health and well-being.
Author | : International Symposium Persistent Organic Pollutants in Mountainous Areas |
Publisher | : |
Total Pages | : 131 |
Release | : 2009 |
Genre | : |
ISBN | : |
Download Persistent organic pollutants in mountainous areas : [the collection of papers in this special issue is the result of an International Symposium: Persistent Organic Pollutants in Mountainous Areas, held in Salzburg, Austria in late 2007] Book in PDF, ePub and Kindle
Author | : Michael C. Newman |
Publisher | : CRC Press |
Total Pages | : 682 |
Release | : 2019-11-27 |
Genre | : Science |
ISBN | : 1351133985 |
Download Fundamentals of Ecotoxicology Book in PDF, ePub and Kindle
This new edition is revised throughout and includes new and expanded information on natural resource damage assessment, the latest emerging contaminants and issues, and adds new international coverage, including case studies and rules and regulations. The text details key environmental contaminants, explores their fates in the biosphere, and discusses bioaccumulation and the effects of contaminants at increasing levels of ecological organization. Vignettes written by experts illustrate key themes or highlight especially pertinent examples. This edition offers an instructors' solution manual, PowerPoint slides, and supplemental images. Features: Adds all new discussions of natural resource damage assessment concepts and approaches Includes new vignettes written by leading guest authors Draws on materials from 2,500 cited sources, including 400+ new to this edition Adds numerous new entries to a useful glossary of 800+ terms Includes a new appendix discussing Brazilian environmental laws and regulations added to existing appendices outlining U.S., E.U., Chinese, Australian, and Indian environmental laws Fundamentals of Ecotoxicology: The Science of Pollution, Fifth Edition contains a broad overview of ecotoxicology and provides a basic understanding of the field. Designed as a textbook for use in introductory graduate or upper-level undergraduate courses in ecotoxicology, applied ecology, environmental pollution, and environmental science, it can also be used as a general reference for practicing environmental toxicologists.
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 2011 |
Genre | : |
ISBN | : 9783845455921 |
Download Modeling of Fate and Effects of Persistent Organic Pollutants Book in PDF, ePub and Kindle
Author | : Convention on Long-Range Transboundary Air Pollution (1979). Task Force on Persistent Organic Pollutants |
Publisher | : |
Total Pages | : 57 |
Release | : 1994 |
Genre | : Convention on Long-range Transboundary Air Pollution |
ISBN | : |
Download An Overview of Persistent Organic Pollutants in the Environment Book in PDF, ePub and Kindle
Author | : Michael C. Newman |
Publisher | : CRC Press |
Total Pages | : 586 |
Release | : 2010 |
Genre | : Medical |
ISBN | : |
Download Fundamentals of Ecotoxicology, Third Edition Book in PDF, ePub and Kindle
Fully revised to reflect new developments, the new edition of this renowned text details key environmental contaminants, explores their gate and cycling in the biosphere, and discusses bioaccumulation and the effects of contaminants at increasing levels of ecological organization. It also covers regulatory aspects of the field and discusses key U.S., European, and Chinese legislation and policy. It provides new study questions, a detailed glossary, and new international case studies by leading world-known experts. This text ...
Author | : Marco Vighi |
Publisher | : |
Total Pages | : |
Release | : 2006 |
Genre | : |
ISBN | : |
Download Special Issue: The Role of High Mountains in the Global Transport of Persistent Organic Pollutants Book in PDF, ePub and Kindle
Author | : Rai S. Kookana |
Publisher | : |
Total Pages | : 10 |
Release | : 2009 |
Genre | : |
ISBN | : |
Download The Role of Black Carbon in Environmental Fate of Persistent Organic Pollutants (POPs) in Sols and Their Effect on Food Safety Book in PDF, ePub and Kindle