A concise assessment of the risks to human health posed by exposure to azodicarbonamide, a chemical mainly used as a blowing agent in the rubber and plastics industries. The compound is used in the expansion of a wide range of polymers, including polyvinyl chloride polyolefins and natural and synthetic rubbers. Although no data on environmental levels are available, the report cites limited evidence suggesting rapid biodegradation in soil. Azodicarbonamide released to surface waters is expected to partition to the hydrosphere with no signification sorption to particulates. No data on exposure of the general population could be identified. Concerning kinetics and metabolism, limited animal studies of exposures via inhalation and ingestion indicate that substantial quantities remain unabsorbed and are rapidly eliminated in the faeces. Studies further suggest that most systemic exposure is to the breakdown product, biurea, and not to the parent compound. Toxicity studies conducted in experimental mammals demonstrate low acute toxicity and no irritation of skin, eye, or respiratory tract. Although azodicarbonamide was found to be a mutagen in bacterial systems, the report found no evidence that this effect would occur in vivo. No adequate studies of carcinogenicity and reproductive toxicity in animals or in humans could be identified. Case reports and epidemiological studies in humans have produced abundant evidence that azodicarbonamide can induce asthma, other respiratory symptoms, and skin sensitization in exposed workers. Adverse effects on other systems have not been studied.
Si deseas puedes conseguir una copia del libro en formato PDF y EPUB. Seguidamente te mostramos un listado de posibilidades de descarga directa disponibles:
Government Finance Statistics Yearbook, 2004 Detailed annual data for Fund member governments are supplied on revenue income by source (tax, Detailed annual data for Fund member governments are supplied on revenue income by source (tax, lending, bonds, etc.), and expenditure by sector (defense, education, health, etc.) for all levels of government (national, state, local). Topics…
Donde La Biblia Se Hace Vida BibleZone in Spanish has all you need to capture Spanish-speaking childrens imagination and make Bible stories stick! Create a classroom where children encounter Gods Word and reflect on how the Bible matters in their life. BibleZone tells the complete Bible story - not just a Bible verse - and helps…
Yes/no Medical Spanish This book is designed specifically for students and health-care workers with very limited understanding of Spanish. The questions are designed in such a way that the book serves two purposes: as a translating tool that virtually eliminates the need for a translator in the vast majority of cases, and as…
An Introduction To Spanish For Health Care Workers Now in its fourth edition, this widely used textbook is designed for students or professionals in medical fields who have little or no formal background in Spanish. Using online videos, readings, exercises, and activities such as role play and improvisation, it introduces the grammar structures and specialized medical vocabulary and…
Cross-cultural Approach To Advanced Spanish Puntos de encuentro: A Cross-Cultural Approach to Advanced Spanish is an innovative task- and content-based textbook that rethinks advanced Spanish instruction. Based on research on second language acquisition in the classroom, it combines language-as-discourse instruction with content-based learning. This text emphasizes the analysis of spoken and written texts drawn from…
Destino, Libertad Y Alma From the moment of birth a search is emerged into the depths of every human being. We can repress the search, replace it or divert it, but we cannot eliminate it because it is intrinsic to human nature. Until it is resolved, we keep on looking. Of course, there are…
