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 Biotechnology and Sustainable Development written by Ismail Serageldin and published by CABI. This book was released on 2003 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the first scientific conference convened at the Library of Alexandria, 'Biotechnology and Sustainable Development: Voices of the South and North', which was held in Alexandria, Egypt, in March 2002, this book contains overviews of agriculture, health, ethics and the environment. It discusses how dramatic improvements in food security, health, and lifestyle could accrue to the poor people of developing countries through the applications of new technologies.
Download or read book The use of plant protection products in the European Union written by and published by . This book was released on 2007 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life Cycle Assessment in the Agri food Sector written by Bruno Notarnicola and published by Springer. This book was released on 2015-01-06 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents an overview of the International practices and state-of-the-art of LCA studies in the agri-food sector, both in terms of adopted methodologies and application to particular products; the final purpose is to characterise and put order within the methodological issues connected to some important agri-food products (wine, olive oil, cereals and derived products, meat and fruit) and also defining practical guidelines for the implementation of LCAs in this particular sector. The first chapter entails an overview of the application of LCA to the food sector, the role of the different actors of the food supply chain and the methodological issues at a general level. The other chapters, each with a particular reference to the main foods of the five sectors under study, have a common structure which entails the review of LCA case studies of such agri-food products, the methodological issues, the ways with which they have been faced and the suggestion of practical guidelines.
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 Interpr tation des spectres de masse en couplage GC MS cours et exerices corrig s written by BOUCHONNET Stéphane and published by Lavoisier. This book was released on 2012-09-04 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: C’est avec une réelle volonté didactique que cet ouvrage aborde l’interprétation des spectres de masse pour confirmer ou élucider des structures chimiques. Les publications scientifiques dédiées à la spectrométrie de masse sont souvent complexes et présentent une approche très théorique, souvent difficile à comprendre et à mettre en pratique. Ce livre se fait fort, grâce à sa simplicité et à sa démarche ancrée dans la pratique, d’offrir aux débutants comme aux spécialistes du domaine, les clés de cette technique. Un premier chapitre présente des rappels de chimie organique nécessaires à une bonne compréhension des réactions impliquées. Dans un deuxième chapitre, les mécanismes de formation et de dissociation des ions sont détaillés : ruptures simples et réarrangements, fragmentations secondaires, etc. Ces mécanismes sont illustrés de nombreux exemples concrets. La seconde partie de cet ouvrage propose une cinquantaine d'exercices corrigés permettant d'acquérir maîtrise et autonomie. À la fois manuel universitaire et guide pratique quotidien, L’interprétation des spectres de masse en couplage GC-MS constitue une référence pour tous les utilisateurs de couplage GC-MS tels que les ingénieurs, techniciens, chercheurs, étudiants, etc., débutants ou confirmés, désireux d'interpréter judicieusement leurs spectres de masse. Outre l'élucidation structurale, la compréhension des mécanismes qui régissent l'interprétation des spectres permet l'amélioration des méthodes analytiques et la fiabilisation des résultats.
Download or read book Analyse chimique 9e d written by Francis Rouessac and published by Dunod. This book was released on 2019-07-10 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage offre un panorama détaillé des méthodes d'analyse présentes dans des secteurs aussi variés que les industries chimiques ou agroalimentaires, les laboratoires d'analyses médicales, les sciences de l'environnement. Les aspects pratiques de chaque méthode sont associés aux notions scientifiques qui l'expliquent. Des exercices corrigés complètent chaque chapitre. Cette nouvelle édition entièrement actualisée tient compte des avancées technologiques les plus récentes. Des compléments sur les paramètres statistiques de base et les normes à connaître sont disponibles sur le site dunod.com.
Download or read book Multielement Analysis of Environmental Samples by Spark Source Mass Spectrometry written by Charles E. Taylor and published by . This book was released on 1974 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A spark source mass spectrometer that uses electronic detection and a dedicated data analysis system was applied to a survey type trace analysis for chemical elements. Errors in the data system software were identified and corrected. Modifications to the system permit identification and quantitation of 72 elements at the aprt per billion level in water samples.""--P ii.
Download or read book Chromatographic Mass Spectrometric Food Analysis for Trace Determination of Pesticide Residues written by A.R. Fernandez Alba and published by Elsevier. This book was released on 2004-12-11 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trace determination of pesticides continues to be a topic for analytical chemists working in research centres, government and universities. With four chapters devoted to chromatography-mass spectrometry methods, readers are able to understand the analytical basis, technical characteristics and possibilities to evaluate pesticides in food by gas chromatography (GC) and liquid chromatography (LC) mass spectrometry. The book also provides a well-defined and critical compilation of the sample treatment and clean-up procedures, as well as injection techniques applied in GC and LC food analysis. Finally the book deals with aspects related to analytical quality control requirements for pesticide residues, in addition to pesticide regulation aspects.* Contains specific chapters devoted to chromatography-mass spectrometry methods* Provides a well-defined and critical compilation of the sample treatment and clean-up procedures* Contains aspects related to analytical quality control requirements for pesticide residues
Download or read book Additional Principles and Methods of Analysis written by Gunter Zweig and published by Elsevier. This book was released on 2013-10-22 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical Methods for Pesticides, Plant Growth Regulators, and Food Additives, Volume V: Additional Principles and Methods of Analysis covers the major advances in the analytical techniques used for the qualitative and quantitative determinations of minute amounts of pesticide and plant growth regulator residues in foods and crops. The book discusses developments in analytical methods (i.e. the polarographic technique, thin-layer chromatography) and their general applications; the analytical aspects of pesticide residue analyses in the environment; and specific analytical methods for formulation and residue analyses of insecticides, fungicides, herbicides and plant growth regulators. Agriculturists, agricultural engineers, toxicologists, and people involved in the study of pesticides and biochemicals will find the book invaluable.
Download or read book Analyse chimique written by Daniel Cruché and published by . This book was released on 2019-07-10 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage offre un panorama détaillé des méthodes d'analyse présentes dans des secteurs aussi variés que les industries chimiques ou agroalimentaires, les laboratoires d'analyses médicales, les sciences de l'environnement. Les aspects pratiques de chaque méthode sont associés aux notions scientifiques qui l'expliquent. Des exercices corrigés complètent chaque chapitre. Cette nouvelle édition entièrement actualisée tient compte des avancées technologiques les plus récentes. Des compléments sur les paramètres statistiques de base et les normes à connaître sont disponibles sur le site dunod. com.
Download or read book M thodes instrumentales d analyse chimique et applications written by Gwenola Burgot and published by Lavoisier. This book was released on 2011-02-01 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Methods for Food Safety by Mass Spectrometry written by Guo-Fang Pang and published by Academic Press. This book was released on 2018-06-29 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical Methods for Food Safety by Mass Spectrometry, Volume One: Pesticides systematically introduces the Pesticide and Veterinary Drug Multiresidues Analytical Methods. Volume One includes discussions on 20 pesticide multiresidues chromatic-MS (GC-MS and LC-MS/MS) analytical techniques that have the capability of detecting over 800 pesticides and chemicals in 10 categories of agricultural products, including fruits, vegetables, grains, teas, Chinese medicinal herbs, edible fungus mushrooms, fruit and vegetable juices, animal tissues, aquatic products, raw milk and milk powders, and drinkable water. This book also includes chromatic-MS analytical parameters, linear equations and GPC chromatic behavior parameters for over 800 pesticides. This valuable book can be used as reference for not only university students, but also technical personnel of different specialties who are engaged with study and applications, such as food safety, agricultural environment protection, pesticide development, and utilization in scientific research units, institutions and quality inspection organizations. - Provides the chromatic-MS analytical technique for over 1000 commonly-used veterinary and pesticide residues - Covers a large varieties of target compounds, including over 800 pesticides (organophosphorus, organochlorine, carbamate, pyrethroids) and over 200 veterinary drugs, including Fluoroquinolone, Sulfonamides, Chloramphenicol, Nitrofurans, Tetracyclines, Nitroimidazole, ß-lactams, Quinoxaline, Benzimidazole, ß-Adrenoceptor agonists, Aminoglycoside, and more - Includes the latest information on sophisticated pre-treatment techniques with a single sample pre-treatment and simultaneous detection by GC-MS and LC-MS/MS
Download or read book L analyse de l eau 10e d written by Jean Rodier and published by Dunod. This book was released on 2016-09-07 with total page 1805 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depuis plus de 50 ans, «Le Rodier» est la bible des professionnels de l'eau. C'est le seul ouvrage à expliciter toutes les méthodes d'analyse (chimique, microbiologique, etc.) applicables aux différents types d'eau (naturelles, usées, marine). Sous la coordination de Bernard Legube et avec pas moins de 15 collaborateurs, la 10/e édition de cet ouvrage constitue un ouvrage de synthèse présentant les techniques modernes d’analyses chimique, biologique et microbiologique des eaux. Prenant en compte les avancées technologiques les plus récentes dans le domaine de la chimie analytique, cette nouvelle édition présente un contenu fondamentalement renouvelé tout en conservant l’esprit et la forme des éditions précédentes. Enrichie de données sur les nombreux polluants organiques ciblés par les nouvelles réglementations, elle intègre les polluants émergents et s’appuie sur les nouveaux indicateurs biologiques permettant l’évaluation de l’état écologique des masses d’eau. L’interprétation des résultats analytiques occupe toujours une place de choix, contribuant à conférer à cet ouvrage une place de référence pour les professionnels de l’eau.
Download or read book Modern Analytical Techniques written by Gunter Zweig and published by Academic Press. This book was released on 2013-10-22 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical Methods for Pesticides and Plant Growth Regulators, Volume XIV: Modern Analytical Techniques covers an updated treatment of the most frequently used techniques for pesticide analysis, i.e., thin-layer chromatography, gas chromatography (packed and capillary columns), high-performance liquid chromatography, and mass spectrometry. People involved in the analysis of pesticides will find the book useful.
Download or read book Analyse chimique written by Francis Rouessac and published by . This book was released on 2009-06-03 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce livre s'adresse à un large public d'étudiants en Licences de Sciences de la Matière ou de Sciences de la Vie, en pharmacie, ainsi qu'en IUT. Il offre un panorama détaillé des méthodes d'analyse présentes dans des secteurs aussi variés que les industries chimiques, agroalimentaires, les laboratoires d'analyse médicale, les sciences de l'environnement. Le principe de ce cours est de relier les aspects pratiques de chaque méthode étudiée aux notions scientifiques qui l'expliquent. Abondamment illustré par plus de 300 figures et photos originales, ce livre est organisé en trois sections : les méthodes séparatives (les différentes techniques de chromatographie et d'électrophorèse), les méthodes spectrométriques (UV, IR et Raman, fluorimétrie, fluorescence X, absorption et émission atomique, RMN), et les autres méthodes (spectrométrie de masse, analyses isotopiques et méthodes de marquage, analyseurs spécifiques, électrochimie). Dans cette nouvelle édition, le cours a été entièrement mis à jour pour tenir compte des progrès technologiques les plus récents (chromatographies, spectrométries, RMN...). Des exercices corrigés ont également été ajoutés.
Download or read book TOF MS Within Food and Environmental Analysis written by Amadeo Rodriguez Fernandez-Alba and published by Elsevier. This book was released on 2012-09-06 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: New developments in mass spectrometry have allowed routine identification and lowered limits of detection at levels only imagined a decade ago. Thousands of contaminants and residues in the food supply and the environment are now being reported. Between 2005 and 2010, more than 5,000 publications covering TOF-MS and environmental and food analysis were published, showing the importance of the technique in these applications. This book covers the basic principles of method development in GC- and LC-TOF-MS as well as the main operational parameters related to TOF-MS. The second part focuses on the relevant environmental applications, including quality control aspects as well as data collection. The third part is devoted to relevant applications in food analysis, including validation procedures for screening analysis as well as relevant databases. Outlines basic concepts and principles of gas and liquid chromatography TOF-MS and its application in food analysis Includes quality control and data collection techniques Focuses on environmental implications and safety concerns
