Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Vapor Intrusion Simulations And Risk Assessments
Download Vapor Intrusion Simulations And Risk Assessments full books in PDF, epub, and Kindle. Read online Vapor Intrusion Simulations And Risk Assessments ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Vapor Intrusion Simulations and Risk Assessments by : Yijun Yao
Download or read book Vapor Intrusion Simulations and Risk Assessments written by Yijun Yao and published by Springer Nature. This book was released on 2022-07-25 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces key concepts in modeling and risk assessments of vapor intrusion, a process by which the subsurface volatile contaminants migrate into the building of concern. Soil vapor intrusion is the major exposure pathway for building occupants to chemicals from the subsurface, and its risk assessments determine the criteria of volatile contaminants in soil/groundwater in brownfield redevelopment. The chapters feature the recent advances in vapor intrusion studies and practices, including analytical and numerical modeling of vapor intrusion, statistical findings of United States Environmental Protection Agency’s Vapor Intrusion Database and Petroleum Vapor Intrusion Databases, the challenges of preferential pathways, and the application of building pressure cycling methods, and field practices of vapor intrusion risk assessments at developed contaminated sites and in brownfield redevelopment. This volume also summarizes the advantages and limits of current applications in vapor intrusion risk assessment, laying the groundwork for future research of better understanding in risk characterization of soil vapor intrusion using models. Written by experts in this field, Vapor Intrusion Simulations and Risk Assessments will serve as an invaluable reference for researchers, regulators, and practitioners, who are interested in perceiving the basic knowledge and current advances in risk assessments of soil vapor intrusion.
Book Synopsis Guide for the Assessment of the Vapor Intrusion Pathway by :
Download or read book Guide for the Assessment of the Vapor Intrusion Pathway written by and published by . This book was released on 2006 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document has been developed by the Health Risk Assessment Branch of the Air Force Institute for Operational Health (AFIOH) as an informational resource for Mr Force environmental managers who are interested in evaluating the vapor intrusion pathway (VIP), This pathway has received substantial scrutiny in recent years by the U.S. Environmental Protection Agency (EPA) and state environmental regulatory agencies; the potential health risks from vapor intrusion are being evaluated at numerous sites across 'the country. Exposures related to this pathway can result from the volatilization and migration of chemicals from contaminated groundwater and subsurface soil that can leak through cracks and holes in buildings located above the contamination. EPA has developed a detailed vapor intrusion guide (EPA, 2002a) that uses a tiered approach to evaluate the potential risks associated with this pathway. This Air Force-specific document generally follows and supports the modeling and risk assessment approaches recommended by EPA. The primary focus of this document is to provide a discussion of various approaches, problems, and solutions related to assessing and managing the VIP. This guidance covers such areas as sampling and analysis, analytical methods, indoor air quality, risk assessment, remediation, and risk management.
Book Synopsis Vapor Intrusion Risk Assessment With an Innovative Mobile GC System by : Bernd Seelhorst
Download or read book Vapor Intrusion Risk Assessment With an Innovative Mobile GC System written by Bernd Seelhorst and published by . This book was released on 2013 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the dominating problems in the revitalization of brownfields in region of São Paulo City, Brazil, is the assessment and quantification of vapor intrusion scenarios that trigger frequently necessary remedial actions. With a flux chamber based investigation procedure in combination with a new developed GC-system for the detection of chlorinated volatile organic compounds (CVOCs) site specific soil vapor fluxes could be quantified. Based on the results of flux chamber experiments the effectiveness of concrete slabs could be shown to reduce the vapor flux into enclosed spaced. Moreover, the obtained vapor flux rates were used to predict resulting indoor air concentration due to vapor intrusion of CVOCs.
Book Synopsis DoD Vapor Intrusion Handbook by : Tri-Service Environmental Risk Assessment Workgroup
Download or read book DoD Vapor Intrusion Handbook written by Tri-Service Environmental Risk Assessment Workgroup and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook was developed by the Tri-Service Environmental Risk Assessment Work Group (TSERAWG) to serve as a resource for remedial project managers (RPMs) who may need to investigate the vapor intrusion pathway at Department of Defense (DoD) sites. The Tri-Services of the DoD include the Departments of the Air Force, Army, and Navy, with the Department of the Navy (DON) including both the Navy and the Marine Corps. This handbook was developed to support RPMs working on both active and closed Air Force, Army, Navy, and Marine Corps bases, as well as Formerly Used Defense Sites (FUDS). The handbook is intended to provide a general framework for conducting vapor intrusion investigations under the Defense Environmental Restoration Program (DERP). Both residential and occupational exposure scenarios are discussed since both groups can be affected by vapor intrusion.
Book Synopsis Vapor Intrusion Modeling by : Jessica Marie Friscia
Download or read book Vapor Intrusion Modeling written by Jessica Marie Friscia and published by . This book was released on 2014 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vapor intrusion is the migration of volatile organic compounds (VOCs) from a subsurface source into the indoor air of an overlying building. Vapor intrusion models, including the Johnson and Ettinger (J&E) model, can be used to predict the concentration of VOCs in the indoor air of a building based on a measured subsurface soil gas concentration or contaminant source concentrations, either in non-aqueous phase liquid (NAPL), groundwater, or soil. An analysis of two of the EPA-implemented J&E spreadsheet models, one that considers subsurface soil gas data and one that considers groundwater data, was conducted. The governing equations, assumptions, and limitations of these spreadsheet models were investigated. A value of information (Vol) worksheet was developed that can assist practitioners in deciding what additional data to collect as part of a remedial investigation. The Vol worksheet calculates how varying values of model input parameters affect the model-predicted indoor air carcinogenic risk. The worksheet then compares the user-defined target risk to the range of potential risk values for different combinations of varying parameters. The results of this analysis allow the user to determine which groups of parameters have the most impact on the model results. This information can assist the practitioner in deciding whether or not to collect additional data to reduce the uncertainty in the input parameters. The EPA J&E soil gas and groundwater spreadsheet models, as well as the Vol worksheet developed for each model, were applied to case study data for a trichloroethylene-impacted site in Rhode Island. The results of the J&E model and Vol worksheet analyses for this case study predicted incremental carcinogenic risk values for trichloroethylene (TCE) below the risk value calculated based on measured indoor air data. This comparison suggests the potential for other sources of TCE within the building. Groups of parameters were identified for each model that impacted the model-predicted carcinogenic risk. The development of a cost-benefit analysis, which would be used to quantify the value of obtaining additional data for these critical parameters, is recommended for future research.
Book Synopsis Environmental Modeling and Health Risk Analysis (Acts/Risk) by : Mustafa Aral ARAL
Download or read book Environmental Modeling and Health Risk Analysis (Acts/Risk) written by Mustafa Aral ARAL and published by Springer Science & Business Media. This book was released on 2010-07-28 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Modeling and Health Risk Analysis (ACTS/RISK) The purpose of this book is to provide the reader with an integrated perspective on several ?elds. First, it discusses the ?elds of environmental modeling in general and multimedia (the term “multimedia” is used throughout the text to indicate that environmental transformation and transport processes are discussed in association with three environmental media: air, groundwater and surface water pathways) environmental transformation and transport processes in particular; it also provides a detailed description of numerous mechanistic models that are used in these ?elds. Second, this book presents a review of the topics of exposure and health risk analysis. The Analytical Contaminant Transport Analysis System (ACTS) and Health RISK Analysis (RISK) software tools are an integral part of the book and provide computational platforms for all the models discussed herein. The most recent versions of these two software tools can be downloaded from the publisher’s web site. The author recommends registering the software on the web download page so that users can receive updates about newer versions of the software.
Book Synopsis Interior, Environment, and Related Agencies Appropriations for 2008, Part 6, February 28, 2007, 110-1 Hearings, * by :
Download or read book Interior, Environment, and Related Agencies Appropriations for 2008, Part 6, February 28, 2007, 110-1 Hearings, * written by and published by . This book was released on 2007 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Environmental Site Assessment and Remediation by : Yue Rong
Download or read book Fundamentals of Environmental Site Assessment and Remediation written by Yue Rong and published by CRC Press. This book was released on 2018-07-03 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Environmental Site Assessment and Remediation examines all aspects of environmental site assessment and remediation and outlines the interdisciplinary skills needed to work in the field. It provides a comprehensive overview for students, environmental professionals, and real estate developers, and includes the latest environmental regulations, environmental site assessment and remediation practices, and industry standards. It examines pollution sources and the related impacts on drinking water supplies, the associated health risks, and how to protect water resources. The monitoring of surface water, groundwater, and soil is explained, as well as vapor intrusion. It will include several practical case studies throughout. Features Includes the latest and best practices for environmental site assessment and remediation procedures. Presents a multidisciplinary approach, including environmental forensics, nanotechnology, microbiology (DNA technology) and isotopes, etc. Examines various pollutants and their related impacts on drinking water supplies, the associated health risks, and how to protect water resources. Presents the best practices for the monitoring of surface water, groundwater, and soil. Covers the latest environmental regulations and industry standards.
Download or read book Risk Analysis VI written by C. A. Brebbia and published by WIT Press. This book was released on 2008 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering a series of important topics which are of current research interest and have practical applications, this book examines all aspects of risk analysis and hazard mitigation, ranging from specific assessment of risk to mitigation associated with both natural and anthropogenic hazards.
Book Synopsis Advances in the Characterisation and Remediation of Sites Contaminated with Petroleum Hydrocarbons by : Jonás García-Rincón
Download or read book Advances in the Characterisation and Remediation of Sites Contaminated with Petroleum Hydrocarbons written by Jonás García-Rincón and published by Springer Nature. This book was released on 2023-11-22 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book synthesizes important advances in the assessment and management of soil and groundwater systems contaminated with petroleum hydrocarbons, especially in the form of light non-aqueous phase liquids (LNAPLs). LNAPL characterization and remediation is challenging due to the multi-phase, multi-component nature of the problem and the various physical, chemical, and biological processes involved in a dynamic and heterogeneous hydrogeological setting. This book focuses on the current state of practice of LNAPL characterization and remediation and seeks to provide information and a framework that would allow some of these complexities to be better addressed by contaminated land practitioners, researchers, and regulators.
Book Synopsis Environmental Risk Assessment by : Ted Simon
Download or read book Environmental Risk Assessment written by Ted Simon and published by CRC Press. This book was released on 2019-12-06 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of risk assessment is to support science-based decisions about how to solve complex societal problems. Indeed, the problems humankind faces in the 21st century have many social, political, and technical complexities. Environmental risk assessment in particular is of increasing importance as health and safety regulations grow and become more complicated. Environmental Risk Assessment: A Toxicological Approach, 2nd Edition looks at various factors relating to exposure and toxicity, human health, and risk. In addition to the original chapters being updated and expanded upon, four new chapters discuss current software and platforms that have recently been developed and provide examples of risk characterizations and scenarios. Features: Introduces the science of risk assessment—past, present, and future Provides environmental sampling data for conducting practice risk assessments Considers how bias and conflict of interest affect science-based decisions in the 21st century Includes fully worked examples, case studies, discussion questions, and suggestions for additional reading Discusses new software and computational platforms that have developed since the first edition Aimed at the next generation of risk assessors and students who need to know more about developing, conducting, and interpreting risk assessments, the book delivers a comprehensive view of the field, complete with sufficient background to enable readers to probe for themselves the science underlying the key issues in environmental risk.
Book Synopsis Cross Country Pipeline Risk Assessments and Mitigation Strategies by : Arafat Aloqaily
Download or read book Cross Country Pipeline Risk Assessments and Mitigation Strategies written by Arafat Aloqaily and published by Gulf Professional Publishing. This book was released on 2018-07-12 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross Country Pipeline Risk Assessments and Mitigation Strategies describes the process of pipeline risk management and hazard identification, using qualitative risk assessment, consequence modeling/evaluation, pipeline failure rates, and risk calculations, as well as risk mitigation and control strategies. The book evaluates potential causes of pipeline failure in the oil and gas industry based on a wide range of data that cover more than 40 years of operating history. Additionally, it details a consistent approach that allows for proper estimation of potential risk and offers methods for mitigating this potential risk. This approach is then combined with consequence modeling to fully calculate the different forms of risk presented by pipelines. Cross Country Pipeline Risk Assessments and Mitigation Strategies is an essential resource for professionals and experts involved in pipeline design as well as researchers and students studying risk assessment, particularly in relation to pipelines. - Offers a practical risk assessment model for pipelines without the need for complicated, expensive software - Describes a new and systematic approach for pipeline risk control and mitigation that reflects actual pipeline conditions and operating status - Provides examples of all pipeline hazard identification techniques and how they are used to produce consistent results - Includes access to a newly developed Excel tool PipeFAIT for assessing pipeline risk
Book Synopsis Vapor Intrusion at a Site with an Alternative Pathway and a Fluctuating Groundwater Table by : Yuanming Guo
Download or read book Vapor Intrusion at a Site with an Alternative Pathway and a Fluctuating Groundwater Table written by Yuanming Guo and published by . This book was released on 2015 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vapor intrusion (VI), can pose health risks to building occupants. Assessment and mitigation at VI impacted sites have been guided by a site conceptual model (SCM) in which vapors originate from subsurface sources, diffuse through soil matrix and enter into a building by gas flow across foundation cracks. Alternative VI pathways and groundwater table fluctuations are not often considered. Alternative VI pathways, involving vapor transport along sewer lines and other subsurface infrastructure, have recently been found to be significant contributors to VI impacts at some sites. This study evaluated approaches for identifying and characterizing the significance of alternative VI pathways and assessed the effectiveness of conventional mitigation at a site with an alternative VI pathway that can be manipulated to be on or off. The alternative pathway could not be identified using conventional pathway assessment procedures and can only be discovered under controlled pressure method (CPM) conditions. Measured emission rates were two orders of magnitude greater than screening model estimates and sub-foundation vertical soil gas profiles changed and were no longer consistent with the conventional VI conceptual model when the CPM test was conducted. The pipe flow VI pathway reduced the vacuum performance of the sub-slab depressurization (SSD) VI mitigation system, but the SSD system still provided sufficient protection to the house. The relationship between groundwater table fluctuations and subsurface vapor emissions and transport is examined using multi-year data from the field site, and is studied in the laboratory. In addition, a broader range of conditions is examined through use of modeling validated with the experimental data. The results indicate that fluctuating groundwater tables will lead to amplified volatile organic chemical (VOC) emissions from groundwater to soil surface relative to steady water table elevation, however, the magnitude of this amplification is less concerned when long-term water fluctuation present. No clear correlations were found between VOC emissions and water table changes at the study site where annual water table fluctuations of about 0.3 m existed. Significant VOC emission amplifications by water table fluctuation would be expected under shallow groundwater conditions according to model analysis results.
Download or read book EPA 542-R. written by and published by . This book was released on with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Formerly Used Defense Sites by : John B. Stephenson
Download or read book Formerly Used Defense Sites written by John B. Stephenson and published by DIANE Publishing. This book was released on 2010-03 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cleaning up known hazards at the 4,700 formerly used defense sites (FUDS) -- sites transferred to other owners before 10/86 -- will require 50+ years and cost $18 billion. This estimate excludes any additional needed cleanup of emerging contaminants -- generally, those not yet governed by a health standard. FUDS cleanup is the responsibility of the U.S. Army Corps of Engineers (Corps). In addition to FUDS, DoD is responsible for cleaning up 21,500 sites on active bases and 5,400 sites on realigned or closed bases. This report examined: (1) the extent to which the Corps reevaluates sites to identify emerging contaminants; (2) how DoD allocates cleanup funds; (3) how the Corps prioritizes FUDS for cleanup; and (4) FUDS program overhead costs. Illus.
Book Synopsis Management of Contaminated Site Problems, Second Edition by : Kofi Asante-Duah
Download or read book Management of Contaminated Site Problems, Second Edition written by Kofi Asante-Duah and published by CRC Press. This book was released on 2019-04-12 with total page 815 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will outline the strategies used in the investigation, characterization, management, and restoration and remediation for various contaminated sites. It will draw on real-world examples from across the globe to illustrate remediation techniques and discuss their applicability. It will provide guidance for the successful corrective action assessment and response programs for any type of contaminated land problem, and at any location. The systematic protocols presented will aid environmental professionals in managing contaminated land and associated problems more efficiently. This new edition will add twelve new chapters, and be fully updated and expanded throughout.
Book Synopsis Vapor Emission to Outdoor Air and Enclosed Spaces for Human Health Risk Assessment by : Sabrina Saponaro
Download or read book Vapor Emission to Outdoor Air and Enclosed Spaces for Human Health Risk Assessment written by Sabrina Saponaro and published by Nova Biomedical Books. This book was released on 2010-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remediation of subsurface contamination is an up-to-date subject, due to the high number of contaminated sites in all developed countries. Risk assessment for long term exposure to humans is the approach most applied world-wide to identify contaminated sites and the remediation target limits. Exposure pathways for humans at polluted sited often involve inhalation of vapours from soil or groundwater, both outdoor and within enclosed spaces. Many models are available for this purpose, based on concentration input data referred to different media (soil gas, soil, groundwater) located below the ground surface or buildings. This book discusses research in this field in order to improve both modelling tools and field measurements.
