BakerUniversity of Maryland, Baltimore County When a dam comes down this fall, a team of scientists will be there to track the environmental changes. ArrigoUniversity of Massachusetts Dartmouth Taking millions of gallons of water permanently out of the Colorado River amid a prolonged drought would surely start an interstate fight. TurnerUniversity of Wisconsin-Madison Huge fires roared through Yellowstone National Park in the summer ofscorching one-third of the park. Since then the park has been a valuable lab for studying how forests recover from fires.
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Abstract Some engineers and scientists are either directly or indirectly involved with nanotechnology issues. Nanotechnology concerns dealing with environmental implications and regulatory compliance encompass practicing areas for these technical individuals.
This article addresses both of these issues. Introduction Nanotechnology is concerned with the world of miniscule particles that are dominated by forces of physics and chemistry that cannot be applied at the macro- or human-scale level. Regarding the word nanotechnology, it is derived from the words nano and technology.
Nano, typically employed as a prefix, is defined as one-billionth of a quantity or term. It entails the ability to build molecular systems with atom-by-atom precision, yielding a variety of nanomachines [ 1 ].
Nanoparticles possess large surface areas and essentially no inner mass, i. These special properties, in conjunction with the unique behavior of nanomaterials, can significantly impact physical, chemical, electrical, biological, mechanical, and functional qualities and properties.
These newly identified characteristics can be harnessed and exploited by applied scientists to engineer new processes. One of the main obstacles to achieving this goal will be to control, reduce, and ultimately eliminate environmental and environmentally-related problems associated with this technology.
The success or failure of this effort may well depend on the ability to address these environmental issues. Only time will provide answers to many key environmental questions, including the following: What are the potential environmental concerns associated with this new technology?
Could nanoapplications lead to environmental degradation, particularly from bioaccumulation of nanoproducts in living tissue? What impact will regulations have on this new technology? Regarding these questions, the environmental health and hazard risks associated with both nanoparticles and the applications of nanotechnology for commercial and industrial uses are not fully known [ 2 — 8 ].
Some early studies suggest that nanoparticles might serve as environmental poisons that accumulate in organs.
Although these risks may prove to be either minor, avoidable, or both, the engineer and scientist are duty bound to determine if there are in fact any health, safety, and environmental impacts associated with nanotechnology [ 2 ].
This information is also of vital importance to those involved and engaged in the legal arena. Environmental Risk Management People face all kinds of risk every day, some voluntarily and others involuntarily.
Unfortunately, the word risk has come to mean different things to different people. However, these two classes of risk have been used interchangeably by practitioners, researchers, and regulators. Because of this confusion, one of the main objectives of this paper is to both define and clarify the difference between these two risks.Environmental Impacts of Nanotechnology Paul Westerhoff, Ph.D., PE Professor and Chair Civil and Environmental Engineering.
Outline environment, and the mode and duration of effects on ecosystems. change over time? How does this affect.
promise of nanotechnology to try and understand Nanotechnology, climate and energy: over-heated promises and hot air? I 7 Wasteful and inequitable consumption and Nanotechnology, climate and energy: over-heated promises and hot air?
• • • • • • Nanotechnology, climate and energy: over-heated promises and hot air?. What economic impact could the use of this nanotechnology development have on producers, consumers, and other industries?
Environment •Nanotechnology is making significant improvements in technologies for protecting the hot/cold, wet/dry), heavy metals, particulates, and allergens.
. European Commission DG ENV 1 News Alert issue 75 July 26 July Positive and Negative Effects of Nanotechnology on the Environment Nanotechnology, which involves materials and processes on an ultra-small scale, is currently an area of. 8 I Nanotechnology.
climate and energy: over-heated promises and hot air?. nanotechnology may in fact impose a new level of energy and environmental costs. consumption o r . Hot pot: The Chinese hot pot has a history of more than 1, years.
Hot pot originated during the Chinese Jin Dynasty where the main ingredient was meat, usually beef, mutton or horse. It then spread to Southern China during the medieval Song Dynasty and was .