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)
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.
Braz. J. Microbiol. vol.44 no.1 São Paulo 2013 Fecal indicators and bacterial pathogens in bottled water from Dhaka, Bangladesh Fecal indicators and bacterial pathogens in bottled water from Dhaka, Bangladesh W. AhmedI,II; R. YusufIII; I. HasanIII,IV; W. ICSIRO Land and Water, Ecosciences Precinct, Boggo Road, Brisbane, Australia IIDepartment of Environment and Resource Management, Indooroopilly, Brisbane, Australia IIISchool of Life Sciences, Independent University Bangladesh, Dhaka, Bangladesh IVDepartment of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi, Bangladesh VScience and Engineering Faculty, Queensland University of Technology, Brisbane, Australia Send correspondence to Forty-six bottled water samples representing 16 brands from Dhaka, Bangladesh were tested for the numbers of total coliforms, fecal indicator bacteria (i.e., thermotolerant Escherichia coli and Enterococcus spp.) and potential bacterial pathogens (i.e., Aeromonas hydrophil, Pseudomonas aeruginos, Salmonella spp., and Shigella spp.). Introduction Materials and Methods Sources of samples DNA extraction Conclusion
FAO 19/07/13 FAO/WHO Paper: State of the art on the initiatives and activities relevant to risk assessment and risk management o Science and technology at the nanoscale promise to be among the most innovative fields in decades. Nanotechnologies allow for the possibility to control and modify material and systems at the nanoscale level to obtain significantly altered characteristics from those present at larger scale. A number of emerging nanotechnologies seem to have the potential to provide significant benefits in various fields including the food, water and agriculture sectors. Research and development on nanotechnologies have been growing worldwide both in the public and private sectors within developed as well as emerging countries. FAO/WHO has developed and finalized a technical paper entitled “State of the art on the initiatives and activities relevant to risk assessment and risk management of nanotechnologies in the food and agriculture sectors" (July 2013).
FOOD SAFETY MAGAZINE 03/10/13 Competition Aims to Identify, Implement Water Innovations in Food and Agriculture. News | October 3, 2013 Imagine H2O, a nonprofit organization that provides a path-to-market platform for early-stage water technology companies. announced Oct. 1 that it is accepting applications from water entrepreneurs worldwide for its 2013 Food & Agriculture Competition. The fifth annual competition seeks to identify and support promising water innovations in the food and agriculture sector. The deadline to submit applications is November 15; applications can be submitted here. On its Food & Agriculture Program web page, Imagine H2O provides two important statistics: A 2012 UN World Water Assessment Program survey indicates that agriculture currently accounts for more than 70% of global water usage. At the launch of its Food & Agriculture Program this past May, Imagine H2O’s chief operating officer, Scott Bryan, said, “This program will advance innovations in how we use, supply and treat water to improve our food system.
ARS USDA 30/06/14 Nanoparticle-based Coating Helps Stop Water from Beading By Marcia Wood June 30, 2014 Rainwater pounding on the glass windows of an office building or a home is less likely to bead up and reduce visibility if the windows are treated with a new, transparent coating from U.S. Department of Agriculture (USDA) chemist Sanghoon Kim and his colleagues. Besides its potential use on windows, the coating might also be applied to solar panels to help keep dirt from interfering with their performance, Kim notes. What's more, Kim and his colleagues have observed that the coating works well on other materials, including Plexiglas and metals such as stainless steel. Kim, along with research chemist Atanu Biswas and physical scientist Kervin Evans—all with the USDA Agricultural Research Service (ARS) National Center for Agricultural Utilization Research in Peoria, Illinois—created the coating's nanoparticles by using only a few off-the-shelf laboratory chemicals, including a protein from agriculture. Applying the coating is quick and easy.