Download or read book Pollution localis e des sols et sous sols par les hydrocarbures et par les solvants chlor s written by François Colin and published by Tec & Doc Lavoisier. This book was released on 2000 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: La pollution des sols et des sous-sols résulte des conséquences cumulées de diverses activités humaines, tant industrielles qu'agricoles, urbaines, militaires etc. Cette contamination, trop négligée jusqu'à une époque récente, est préoccupante par ses conséquences environnementales, sanitaires et socio-économiques. Ce type de pollution se caractérise par des difficultés spécifiques d'identification et d'accessibilité, et par l'hétérogénéité des matières et des sites concernés : à ce titre, il mérite une attention particulière. Le présent rapport est consacré à l'une des formes de pollution des sols et sous-sols les plus courantes, impliquant les hydrocarbures et les solvants chlorés. La problématique en est développée tant au niveau descriptif de la contamination et de ses effets qu'à celui des possibilités d'actions préventives ou curatives, dans un contexte où coexistent contraintes juridiques et économiques ainsi qu'obligations sociales. Ce travail est complémentaire de celui consacré à la pollution des sols par les éléments en traces, objet du rapport n° 42 de l'Académie des sciences (août 1998), les deux types de contaminations relevant de caractères, et de logiques très différents. La première partie de l'ouvrage traite du constat : origines des contaminations (activités et sources de pollutions), moyens d'identification, localisation, délimitation, quantification des contaminations terrestres superficielles et souterraines (caractérisation des sites contaminés), devenir des contaminants dans les sols et sous-sols (mécanismes, phénomènes de transport et d'évaluation), identification des impacts constatés ou potentiels (effets sur l'homme et les écosystèmes). La deuxième partie traite du cadre et des moyens d'action, en fonction de paramètres réglementaires, techniques et socio-économiques. Il est légitime de considérer prioritairement les mesures préventives de réduction du risque (prévention et protection) avant de justifier des obligations de remise en état des sites déjà contaminés (aspects juridiques). Cette réhabilitation des sites contaminés est ensuite considérée sous l'angle technologique. Enfin les contraintes socio-économiques constituent des justifications pour l'action, dont elles fixent les limites pratiques et effectives. Les recommandations relatives aux différents aspects décrits dans le rapport sont regroupées à la fin de l'ouvrage.
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Download or read book Arsenic in Drinking Water written by National Research Council and published by National Academies Press. This book was released on 2001-11-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having safe drinking water is important to all Americans. The Environmental Protection Agency's decision in the summer of 2001 to delay implementing a new, more stringent standard for the maximum allowable level for arsenic in drinking water generated a great deal of criticism and controversy. Ultimately at issue were newer data on arsenic beyond those that had been examined in a 1999 National Research Council report. EPA asked the National Research Council for an evaluation of the new data available. The committee's analyses and conclusions are presented in Arsenic in Drinking Water: 2001 Update. New epidemiological studies are critically evaluated, as are new experimental data that provide information on how and at what level arsenic in drinking water can lead to cancer. The report's findings are consistent with those of the 1999 report that found high risks of cancer at the previous federal standard of 50 parts per billion. In fact, the new report concludes that men and women who consume water containing 3 parts per billion of arsenic daily have about a 1 in 1,000 increased risk of developing bladder or lung cancer during their lifetime.
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Download or read book Eat Sleep Bagpipes Repeat written by Mirako Press and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This adorable music notebook is perfect for staffs, kids and musicians. The high-quality manuscript book includes 110 pages of 12 staves. Let exercise your composing skills with this well-designed music sketchbook! Enjoy!
Download or read book Total Diet Studies written by Gerald G. Moy and published by Springer. This book was released on 2016-08-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unless a food is grossly contaminated, consumers are unable to detect through sight or smell the presence of low levels of toxic chemicals in their foods. Furthermore, the toxic effects of exposure to low levels of chemicals are often manifested slowly, sometimes for decades, as in the case of cancer or organ failure. As a result, safeguarding food from such hazards requires the constant monitoring of the food supply using sophisticated laboratory analysis. While the food industry bears the primary responsibility for assuring the safety of its products, the overall protection of people’s diets from chemical hazards must be considered one of the most important public health functions of any government. Unfortunately, many countries do not have sufficient capability and capacity to monitor the exposure of their populations to many potentially toxic chemicals that could be present in food and drinking water. Without such monitoring, public health authorities in many countries are not able to identify and respond to problems posed by toxic chemicals, which may harm their population and undermine consumer confidence in the safety of the food supply. From a trade perspective, those countries that cannot demonstrate that the food they produce is free of potentially hazardous chemicals will be greatly disadvantaged or even subject to sanctions in the international marketplace. The goal of a total diet study (TDS) is to provide basic information on the levels and trends of exposure to chemicals in foods as consumed by the population. In other words, foods are processed and prepared as typical for a country before they are analyzed in order to better represent actual dietary intakes. Total diet studies have been used to assess the safe use of agricultural chemicals (e.g., pesticides, antibiotics), food additives (e.g., preservatives, sweetening agents), environmental contaminants (e.g., lead, mercury, arsenic, cadmium, PCBs, dioxins), processing contaminants (e.g., acrylamide, polycyclic aromatic hydrocarbons, chloropropanols), and natural contaminants (e.g., aflatoxin, patulin, other mycotoxins) by determining whether dietary exposure to these chemicals are within acceptable limits. Total diet studies can also be applied to certain nutrients where the goal is to assure intakes are not only below safe upper limits, but also above levels deemed necessary to maintain good health. International and national organizations, such as the World Health Organization, the European Food Safety Agency and the US Food and Drug Administration recognize the TDS approach as one of the most cost-effective means of protecting consumers from chemicals in food, for providing essential information for managing food safety, including food standards, and for setting priorities for further investment and study. Total Diet Studies introduces the TDS concept to a wider audience and presents the various steps in the planning and implementation of a TDS. It illustrates how TDSs are being used to protect public health from chemicals in the food supply in many developed and developing countries. The book also examines some of the applications of TDSs to specific chemicals, including contaminants and nutrients.
Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Mechanisms of Hormone Action written by Gesellschaft für Biologische Chemie. Colloquium and published by . This book was released on 1989 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Health and Life Skills for Kindergarten to Grade 9 written by Alberta. Alberta Learning and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Core French Study written by Raymond LeBlanc and published by . This book was released on 1990 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Study examined policies, programs, and activities in Core French; pooled ideas, experience and research on the planning, organization, curriculum development, teaching approaches, teacher education, and professional development; and identified ways and means to substantially strengthen Core French. This document includes a short review of the justification for the syllabuses, and the results obtained by the syllabus task force. It also raises questions relating to integration, evaluation, and professional development.
Download or read book Mar es noires et sols pollu s par des hydrocarbures written by Christian Bocard and published by Editions TECHNIP. This book was released on 2006 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage décrit les spécificités de chacune des deux problématiques que représentent les déversements accidentels de pétrole, ou de produits pétroliers en mer et les pollutions par des hydrocarbures des sols et des eaux souterraines. L'auteur montre que, compte tenu des contraintes techniques et économiques généralement rencontrées, les réponses stratégiques apportées dans ces deux cas relèvent finalement de la même approche basée sur l'évaluation des risques pour l'homme et pour les écosystèmes : ceci débouche sur le concept de bénéfice économique et environnemental net qui peut justifier, dans certains cas, l'option consistant à laisser agir l'atténuation naturelle.La compréhension de l'impact des pollutions, décrit factuellement dans le cas de quelques grandes marées noires, s'appuie sur la connaissance théorique et expérimentale des processus d'évolution physique, chimique et biologique des polluants dans les divers milieux (ce que l'on appelle ici "écodynamique") en tenant compte de la diversité chimique des hydrocarbures et de leurs propriétés. Les modèles mathématiques, outils d'évaluation des risques, sont abordés de façon pratique sur la base de nombreux résultats de simulation pour en montrer le fonctionnement. Les méthodes d'analyse et de détection des polluants sont décrites sur un mode concret qui précise leur domaine d'application. Enfin, les techniques de traitement des pollutions et de réhabilitation des milieux sont décrites en mettant l'accent sur les aspects opérationnels et stratégiques. Cet ouvrage s'adresse à la fois aux ingénieurs et techniciens désirant approfondir des aspects des problématiques abordées avec lesquels ils sont peu familiers, aux décideurs ayant besoin de mieux en appréhender la problématique, et à des lecteurs peu avertis qui y trouveront une information circonstanciée.
Download or read book Etudes de Techniques de Traitements D Eaux Et de Sols Contamines written by Nicolas Fatin-Rouge and published by Editions Universitaires Europeennes. This book was released on 2015-12-04 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: La preservation de la qualite de nos ressources dans un contexte d'empreinte anthropique croissante exige l'utilisation de traitements durables. Ce livre traite de la decontamination d'eaux et de sols pollues par des contaminants non degradables ou recalcitrants (metaux solubles, hydrocarbures lourds). Une premiere partie porte sur la reactivite et la distribution de ces contaminants dans les differentes phases, en considerant la reglementation actuelle. Une deuxieme partie est consacree au traitement des eaux residuaires industrielles. Apres un etat de l'art, elle se focalise sur l'amelioration des techniques membranaires par couplage avec d'autres procedes en prenant en compte la reutilisation des reactifs de traitement. Une troisieme partie porte sur le traitement de sols. Apres avoir pose le contexte et decrit le comportement des contaminants et les interactions polyphasiques, les travaux exposes portent sur la desorption des contaminants. L'interet de la reutilisation des solutions de lavage et de l'amelioration des performances de traitement en transposant l'utilisation de mousses de l'extraction amelioree du petrole a la decontamination des sous-sols y sont exposes."
Download or read book Polluted Sites written by Paul Lecomte and published by Routledge. This book was released on 2017-10-19 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a translation of ""Les sites pollues: traitement des sols et des eaux souterraines"", second edition. It covers: contaminated sites; environmental diagnosis; assessment of hazard; remediaiton; costs; new legal requirements; and investments and role of insurance.
Download or read book Effective Teaching Strategies that Accommodate Diverse Learners written by Michael D. Coyne and published by Prentice Hall. This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This popular book examines the teaching, instruction, and curricula required to meet the needs of diverse learners, who by virtue of their experiential, cultural, and socioeconomic backgrounds, challenge traditional curriculum and instructional programs. The updated book provides a summary of the characteristics of students with diverse learning and curricular needs and a critical examination of current issues in education. Based on these analyses, recommendations for teaching reading, comprehension, writing, mathematics, science, social studies, and also teaching English language learners are given to ensure that diverse learners succeed in the classroom. FEATURES: Includes new "application and reflection" sections in each chapter that provide applied case studies, application activities, and questions for discussion and reflection-This new feature allows students to apply the six principles of effective instruction to real life situations, with the goal of facilitating the translation of research to practice. Includes a new chapter on teaching reading comprehension-With the addition of this new chapter, the book now better covers the complexities of teaching reading with chapters on both teaching code-based elements of reading such as phonemic awareness, alphabetic understanding, and fluency as well as teaching meaning-based elements of reading such as comprehension strategies. Provides recommendations for determining the critical curricular and instructional priorities for teaching students with diverse learning needs, who are typically behind their school-age peers in academic performace and content coverage. Concrete examples of how key concepts in reading, writing, mathematics, science, and social studies are taught, integrated, and supported-Examples are provided across grade levels, from the elementary grades through high school. Guidelines for developing, selecting, and modifying curricula to meet the needs of diverse learners into each chapter.
Download or read book Soil and Aquifer Pollution written by Hillel Rubin and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Water Research Institute at the Technion (Israel Institute of Technology) is proud to have initiated and sponsored the International Workshop "Soil and Aquifer Pollution: Non-Aqueous Phase Liquids - Contamination and Recla- tion", held May 13th-15th, 1996, on the Technion campus in Haifa. Groundwater contamination is one of the pressing issues facing Israel and other countries which depend on groundwater for water supply. In Israel, 60% of the water supply comes from groundwater, most of it from two large aquifers. The Coastal Aquifer underlies the area where the largest concentration of human activity already takes place, and where much of future development is expected to occur. It is a phreatic sandstone aquifer, vulnerable to pollution from activities at the surface. The Mountain Aquifer is recharged in the higher terrain to the east, and flows, first in a phreatic zone, then confined, westward and underneath the Coastal Aquifer. This limestone aquifer has higher permeabilities and flow velo- ties, so pollution can reach the groundwater quite readily. Smaller local aquifers are also important components in the national water system. While measures are taken to protect these aquifers from pollution, there are locations where contamination has already occurred. Furthermore, accidental pollution may not be totally avoided in the future. Therefore, understanding the processes of groundwater contamination, recommending the proper measures for preventing it, and determining the best means for reclamation once pollution has occurred, are of great practical importance. Non-aqueous phase liquids (NAPLs) are among the most significant contaminants.
Download or read book Hydrocarbons and Air Pollution Categories A to E written by Air Pollution Technical Information Center and published by . This book was released on 1970 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: About 1900 abstracts of monographs and articles. Some foreign literature is included. Entries are arranged alphabetically by authors under topics. Author, title, subject, and geographic location indexes.
Download or read book Hydrocarbon Contaminated Soils written by Paul T. Kostecki and published by CRC Press. This book was released on 1992-09-01 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrocarbon Contaminated Soils, Volume II presents all of the important topics of hydrocarbon contaminated soils from the perspectives of scientific theory, regulatory application, and analysis and site assessment. These topics include an analysis of pollutants, soil physics and environmental fate; remediation techniques; health effects; regulations; and case histories. The book also includes a special section on petroleum contamination in groundwater and soils. Hydrocarbon Contaminated Soils, Volume II will interest anyone who works with contaminated soils, ground water, and underground storage tanks. It will also be an excellent reference for regulatory personnel and environmental consultants at all levels.
