UNIVERSITY OF TENNESSEE – 2011 - Thèse en ligne : Evaluation of an Intensive Data Collection System for Tennessee Surface Water Abstract Water quality regulators, such as the Tennessee Department of Environment and Conservation, are challenged by data scarcity when identifying surface water quality impairment causes and pollutant sources. Surface water quality model users also seek to identify pollutant sources and design and place best management practices to efficiently improve water quality, but have insufficient data for model calibration. This research documents the design and evaluation of a novel, intensive water quality data collection system consisting of a automatic sampler, bi-weekly grab sampling, and a long term deployment sonde. System design characteristics that were emphasized included a focus on gathering data for common impairment causes (pathogens, siltation, nutrients, and dissolved oxygen-DO) and water quality criteria not currently being evaluated (pH and temperature rate of change and diurnal DO fluctuations). Recommended Citation
The Royal Academy of Engineering - Rapport - Nanoscience and nanotechnologies: opportunities and uncertainties Nanoscience and nanotechnologies: opportunities and uncertainties Our report on nanotechnologies - ‘Nanoscience and nanotechnologies: opportunities and uncertainties’ - was published on 29 July 2004. The report illustrates the fact that nanotechnologies offer many benefits both now and in the future but that public debate is needed about their development. In order to make it easier and quicker to access, the main report has been split into chapters below. Click here to view the full report (pdf 3,511 kb) Chapter 1 - Introduction (pdf 669kb) Chapter 2 - What are nanoscience and nanotechnologies? Chapter 3 - Science and applications (pdf 842kb) Chapter 4 - Nanomanufacturing and the industrial application of nanotechnologies (pdf 541kb) Chapter 5 - Possible adverse health, environmental and safety impacts (pdf 1358kb) Chapter 6 - Social and ethical issues (pdf 87kb) Chapter 7 - Stakeholder and public dialogue (pdf 130kb) Chapter 8 - Regulatory issues (pdf 130kb) Chapter 9 - Conclusions (pdf 80kb)
EFSA 28/04/09 Uranium in foodstuffs, in particular mineral water Type: Opinion of the Scientific Committee/Scientific Panel Question number: EFSA-Q-2007-135 Adopted: 25 March 2009 Published: 28 April 2009 Last updated: 29 May 2009. This version replaces the previous one/s. Affiliation: European Food Safety Authority (EFSA), Parma, Italy This opinion, published on 29th May 2009, replaces the earlier version published on 28th April 2009 . The European Food Safety Authority (EFSA) was asked to conduct a risk assessment on uranium at the European level because of the existence of differing regulations and also due to existing gaps in the knowledge base concerning the chronic toxicity of uranium. Uranium (U) is a silvery-white metal occurring in a number of minerals such as uraninite, carnotite and pitchblende. Analytical methods for the determination of uranium in the different matrices are available. In June 2008, the EFSA issued a specific call to selected countries for data on uranium concentrations in individual water and food samples.
MOTHER NATURE NETWORK 18/02/11 How polluted is U.S. drinking water? U.S. tap water is some of the cleanest on Earth, generally safe from the microbes and chemicals that have plagued humans' water supplies for millennia. While much of the planet relies on paltry, polluted drinking water, Americans can fill a glass without fear of cryptosporidium, chromium or chlordane. This hasn't always been the case, however — and in many parts of the country, it still isn't. More than 40 years after the first Earth Day ushered in a new era of environmental awareness, millions of Americans still drink dangerous tap water without even knowing it. The U.S. government had virtually no oversight of drinking-water quality before the 1970s, leaving the job to a patchwork of local laws that were often weakly enforced and widely ignored. But despite four decades of work that made U.S. tap water safer in general, a flood of dangers still lurk below the surface. In treatment Something in the water The pollutants currently governed by EPA regulations fall into five basic categories:
FSAI 08/04/09 Leaflet: Nanotechnology and Food Wednesday, 8 April 2009 Nanotechnology involves the use of very small particles (nanoparticles) that have an average size, in at least one dimension, of one hundred nanometers (nm) or less. A nanometer is one hundred billionths of a metre. Nanotechnology is viewed by the food industry as a means of enhancing food safety and nutrient bioavailability, with some examples already on the market in certain parts of the world. Though still an emerging science, nanotechnology has been used for some time in the production of goods such as cosmetics, and holds significant promise as a tool in the diagnosis and treatment of certain human illnesses.
Current Topics in Public Health Edited by Alfonso J. Rodriguez-Morales, ISBN 978-953-51-1121-4, 742 pages, Publisher: InTech, Chapters published May 15, 2013 under CC BY 3.0 licenseDOI: 10.5772/56648 Public Health is regarded as the basis and cornerstone of health, generally and in medicine. Defined as the science and art of preventing disease, prolonging life and promoting health through the organized efforts and informed choices of society, organizations, public and private, communities and individuals, this discipline has been renewed by the incorporation of multiple actors, professions, knowledge areas and it has also been impacted and promoted by multiple technologies, particularly - the information technology. As a changing field of knowledge, Public Health requires evidence-based information and regular updates.
FSA 21/04/11 Views on nanotechnology: research published The main findings of the research are that: Participants’ reactions to nanotechnology and food reflected a variety of concerns. These included whether this was a necessary development, whose interests would be served by it and whether the benefits outweighed the perceived risks.Acceptance around the use of nanotechnology was conditional. Andrew Wadge, FSA Chief Scientist, said: 'This research suggests that although consumers may be sceptical about the motives behind the introduction of nanotechnology in food, they are more likely to look more favourably on its use when they perceive a real benefit to them. The Food Standards Agency is working with interested parties to gather intelligence on the use of nanotechnologies in food, and is also developing a UK register of foods that use nanotechnology.
CDC EID - FEV 2017 - Au sommaire notamment: Oral Transmission of L-Type Bovine Spongiform Encephalopathy Agent among Cattle Author affiliations: National Agriculture and Food Research Organization, Ibaraki, Japan Highlight and copy the desired format. Abstract To determine oral transmissibility of the L-type bovine spongiform encephalopathy (BSE) prion, we orally inoculated 16 calves with brain homogenates of the agent. Only 1 animal, given a high dose, showed signs and died at 88 months. The epidemic of bovine spongiform encephalopathy (BSE) in cattle is thought to be caused by oral infection through consumption of feed containing the BSE agent (prion). The L-type BSE (L-BSE) prion has been experimentally transmitted to cattle by intracerebral challenge, and the incubation period was is shorter than that for classical BSE (C-BSE) prions (2–6). We divided a group of 16 Holstein female calves, 3–5 months of age, into 4 groups of 2–6 animals each. At 88 months after inoculation, 1 of the animals (91 months of age) that had received 50 g of L-BSE–infected brain homogenate was unable to get up. Dr. Acknowledgments