Download or read book Assessment of the Sources Atmospheric Fluxes Environmental Cycling Effects and Sinks of Persistent Organic Pollutants POPs written by and published by Nordic Council of Ministers. This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nordic Publications written by Nordic Council of Ministers and published by . This book was released on 2000 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temporal and Spatial Trends of Persistent Organic Pollutants in Air and Soil written by Jasmin Schuster and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of the Ocean in Global Cycling of Persistent Organic Contaminants written by Irene Stemmler and published by Springer Science & Business Media. This book was released on 2010-03-10 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Persistent organic contaminants, which are bioaccumulative and toxic are a concern for the ecosystems and human health and are regulated under international law (global and regional conventions, besides other). If semivolatile, they cycle in different environmental compartments and follow complex transport pathways. The ocean is believed to play a key role in the cycling by accumulating and storing the contaminant and providing a transport medium. But substance fate in the marine environment is not fully understood yet. Here, the global multicompartment chemistry-transport model MPI-MCTM is used to study the fate of organic pollutants in the marine and total environment. For the first time historical emission data are used in spatially-resolved long-term simulations of an insecticide, DDT, and an industrial chemical, perfluorooctanoic acid (PFOA). The model results give new insights into the cycling of these substances as different spatial and process resolutions were tested. E.g. for DDT the model results show saturation and reversal of air-sea exchange, which was not indicated by any other study before.
Download or read book Characterizing the Origin and Long range Transport Behavior of Persistent Organic Pollutants in the North American Atmospheric Environment Using Passive Samplers microform written by Li Shen and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2004 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring is recognized as an essential tool for identifying status and spatial and temporal trends of persistent organic pollutant (POPs) in the atmosphere. To investigate the origin and long-range transport behavior of POPs in air, a novel passive air sampler (PAS) was developed based on the polystyrene/divinylbenzene co-polymeric resin XAD. The PAS was characterized by sorption measurements of chlorobenzenes onto XAD at various temperatures, wind tunnel experiments and computer simulations of the uptake kinetics, and field calibration experiments under Arctic and temperate conditions. The performance of this PAS was evaluated by comparing PAS-derived concentrations with those measured by conventional HiVol samplers. These studies demonstrated the usefulness of XAD-based PAS for atmospheric POP monitoring. A PAS network was established across North America, consisting of 40 stations covering 72 degrees of latitude (10° to 82°N) from the Arctic to Costa Rica and 72 degrees of longitude (53° to 125°W) from Newfoundland to Vancouver Island. Four of these stations constituted an altitudinal transect in the southern Canadian Rocky Mountains, covering an elevational range of more than 1500m. Annually averaged air concentrations of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) were determined in 2000/2001 at these stations, as was the enantiomeric composition of chiral OCPs. The distribution patterns of the POPs were found to depend on their physical-chemical properties, their emission history, and the environmental conditions. Evidence for global fractionation along latitude and altitude was observed. Multivariate statistical analysis allowed for a better understanding of the observed composition patterns of PCBs and PBDEs. Estimation of the long range transport potential of OCPs, empirically from network concentrations, and theoretically from model calculations yielded a comparable classification. In order to have consistent input data for these model simulations, a complete set of partitioning properties (aqueous solubility, octanol-water partition coefficient, vapor pressure, Henry's law constant, octanol-air partition coefficient) for fourteen OCPs was derived by compiling, evaluating, selecting, and adjusting all measured values reported in the literature. Large scale PAS networks are suitable for monitoring compliance with, and effectiveness of, regulatory control measures, and for establishing experimentally the atmospheric long-range transport behavior of POPs.
Download or read book Persistent Organic Pollutants written by Stephen Kudom Donyinah and published by BoD – Books on Demand. This book was released on 2019-04-10 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of four technical articles and an introduction that discusses the characteristics of persistent organic pollutant (POP) behavior, covering organic matter in lake sediments, degradation pathways of POPs and specific pesticides, and the adaptation mechanisms of bacteria. The contributing articles are from authors with different backgrounds and specialties from reputable organizations and institutions. The book analyzes the effects of POPs and their characteristic behavior in different environments. Readers will hopefully gain interesting knowledge from this book.
Download or read book Persistent Organic Pollutants in the Ecosystems of the North Pacific written by Vasiliy Tsygankov and published by Springer Nature. This book was released on 2023-10-30 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reports the results on the fate of POPs in the abiotic and biotic components of the aquatic environment North Pacific Ocean (include Russian part of North Pacific), possible health risks for coastal residents Pacific Ocean exposed to these hazardous pollutants are systematized. In particular, indicator organisms (fish, birds, and mammals), indicating the pollution of the region, were identified; the possible ways of xenobiotic transfer from the sea to the land are shown; the targets of POPs impact on living organisms were determined; the time of circulation of pollutants in the biosphere was determined; a list of “priority” toxicants for the region based on quality screening was compiled; the risks to human health from the consumption of contaminated aquatic organisms were assessed; the levels of POPs in the human body were measured. The book is interesting for specialists in the agro-industrial complex, aquaculture and medicine, teachers and graduate students of universities, researchers, which interested in the problems of persistent organic pollutants (POPs). There are no similar books on the study of POPs in the Russian part of the Pacific Ocean in the world literature. This book is useful to scientists of the world who study the fate of POPs.
Download or read book Quantification and Modelling of Fluxes of Persistent Organic Pollutants POPs to Antarctic Marine Benthic Organisms written by and published by . This book was released on 2020 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine benthic ecosystems are considered to be the final sink of persistent organic pollutants (POPs). Antarctica is a global net receptor of POPs, therefore, quantification of fluxes of POPs to and in the Antarctic benthic ecosystems, although practically difficult, is essential to understand the overall dynamics of these contaminants on a global scale. In order to achieve that, Antarctic benthic ecosystems were studied as an integral part of the Antarctic environment as a whole. Furthermore, robust quality assurance and reporting practices are needed to establish comprehensive time trends of these pollutants, especially due to their expected relatively low concentrations. Current thesis was one of the first attempts to assess fluxes of POPs to benthic Antarctic ecosystems. The major outcome of the study is the conformation of the hypothesis on potentially increasing concentrations of POPs in the benthic ecosystems. Simultaneously, the concentrations of POPs in the pelagic ecosystems may have also stopped decreasing, which was previously indicated. Nevertheless, the fluxes of POPs and, possibly, their toxicological effects on the Antarctic benthic animals will undergo considerable changes in the future due to global change, which must be researched further in detail.
Download or read book Deposition of Air Pollutants to the Great Waters written by and published by . This book was released on 1997 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Geochemistry written by Benedetto DeVivo and published by Elsevier. This book was released on 2017-09-18 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Geochemistry: Site Characterization, Data Analysis and Case Histories, Second Edition, reviews the role of geochemistry in the environment and details state-of-the-art applications of these principles in the field, specifically in pollution and remediation situations. Chapters cover both philosophy and procedures, as well as applications, in an array of issues in environmental geochemistry including health problems related to environment pollution, waste disposal and data base management. This updated edition also includes illustrations of specific case histories of site characterization and remediation of brownfield sites. - Covers numerous global case studies allowing readers to see principles in action - Explores the environmental impacts on soils, water and air in terms of both inorganic and organic geochemistry - Written by a well-respected author team, with over 100 years of experience combined - Includes updated content on: urban geochemical mapping, chemical speciation, characterizing a brownsfield site and the relationship between heavy metal distributions and cancer mortality
Download or read book Deposition of Air Pollutants to the Great Waters written by and published by . This book was released on 2000 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Source Assessment written by Edward C. Eimutis and published by . This book was released on 1976 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Oceanography of Frontal Zones written by Igor M. Belkin and published by Springer Nature. This book was released on 2023-06-01 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique and authoritative review of chemical fronts in the ocean world. It includes regional chapters on chemical fronts in all major oceans (Atlantic, Indian, Pacific, Arctic, and Southern) and marginal seas (North Sea, Baltic Sea, Mediterranean Sea, Gulf of Mexico, Yellow Sea, and the East Siberian Sea). Thematic chapters focus on diverse topics such as cross-frontal transfer of nutrients; diapycnal mixing and its impact on nutrient fluxes in western boundary currents (Gulf Stream and Kuroshio); front-driven physical-biogeochemical-ecological interactions; dynamics of coloured dissolved organic matter; pollutant concentration and fish contamination in frontal zones; distribution of microplastics in the ocean, and Lagrangian methods to study the transport of marine litter. This volume will appeal to a broad audience, including researchers, instructors, students, and practitioners of all kinds involved in scientific and applied research, environment protection and conservation, and maritime industries including fisheries, aquaculture, and mining. Chapter "Lagrangian Methods for Visualizing and Assessing Frontal Dynamics of Floating Marine Litter with a Focus on Tidal Basins" is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Air soil Exchange of Persistent Organic Pollutants POPs written by Ian T. Cousins and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil pollution a hidden reality written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-04-30 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents key messages and the state-of-the-art of soil pollution, its implications on food safety and human health. It aims to set the basis for further discussion during the forthcoming Global Symposium on Soil Pollution (GSOP18), to be held at FAO HQ from May 2nd to 4th 2018. The publication has been reviewed by the Intergovernmental Technical Panel on Soil (ITPS) and contributing authors. It addresses scientific evidences on soil pollution and highlights the need to assess the extent of soil pollution globally in order to achieve food safety and sustainable development. This is linked to FAO’s strategic objectives, especially SO1, SO2, SO4 and SO5 because of the crucial role of soils to ensure effective nutrient cycling to produce nutritious and safe food, reduce atmospheric CO2 and N2O concentrations and thus mitigate climate change, develop sustainable soil management practices that enhance agricultural resilience to extreme climate events by reducing soil degradation processes. This document will be a reference material for those interested in learning more about sources and effects of soil pollution.
Download or read book Analysis of Persistent Organic Pollutants written by Peter Haglund and published by . This book was released on 1999 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Cycling and Dynamics of Persistent Organic Pollutants from Source Regions to Remote Areas written by Rosalinda Gioia and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
