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Greenlist(tm) Bulletin 04/14/2006


This is the weekly bulletin of the TURI Library, reporting a selection of recently published titles we have acquired. Our pledge is to keep the bulletin relevant to your work and brief -- no more than 10 titles. You are welcome to send a message to jan@turi.org if you would like more information on any of the articles listed here.

Titles here, abstracts below them:
  1. Let There Be Light: Organic LEDs Use Fluorescence to Pump Up Efficiency
  2. Safe Harbor: Protecting Ports with Shipboard Fuel Cells
  3. Highly Reactive, Blocking Agent-Free Polyurethane Powder Coatings
  4. Shaping the Future of Sustainable Finance: Moving from Paper Promises to Performance
  5. Washington State Polybrominated Diphenyl Ether (PBDE) Chemical Action Plan: Final Plan
  6. Evidence that Monochloramine Disinfectant Could Lead to Elevated Pb Levels in Drinking Water
  7. Nanotech Consumer Product Recalled in Germany: Glass-treating spray containing nanoparticles has caused medical problems in many consumers
  8. EPA Technical Study on the Safety of Emission Controls for Nonroad Spark-Ignition Engines Below 50 Horsepower
  9. Obstacles to and potentials of the societal implementation of sustainable development: a comparative analysis of two case studies
  10. Yale Researchers Find Environmental Toxins Disruptive To Hearing In Mammals

1. Let There Be Light: Organic LEDs Use Fluorescence to Pump Up Efficiency

AUTHOR Peplow, Mark

SOURCE News@Nature.com, 12 April 2006, www.nature.com

ABSTRACT The traditional light bulb's days could be numbered, according to scientists who have taken an important step towards making white organic light-emitting diodes (OLEDs) commercially viable. They expect that, for the wealthy at least, it could be just a few years before rooms are lit by gently glowing thin panels. The lights should be ultra efficient, saving on energy bills and helping to lower energy consumption. Lighting accounts for about 22% of the electricity consumed in buildings in the United States, and 40% of that amount is eaten up by inefficient incandescent bulbs. "It's in society's best interest that we use less energy," says Stephen Forrest, an electrical engineer at Princeton University, New Jersey, and part of the team that developed the new LED reported in Nature. Traditional incandescent light bulbs are very effective at throwing out light, but a lot of the energy used to run them is converted into heat. Fluorescent lights, such as those seen in most offices, are much better, although the materials used to produce them are relatively expensive. Inorganic LEDs - those used in some Christmas tree lights and bicycle lamps, for example - are very bright point sources. They are good for producing visual effects or attracting the notice of oncoming cars, but they can't throw out enough light to illuminate an entire room. The carbon-based phosphorescent polymers in OLEDs might be better suited to lighting large areas because they can be 'printed' on to surfaces, making lighting screens potentially easy and cheap to mass-produce. Such polymers are currently found in the tiny bright screens of some MP3 players and mobile phones. But they also aren't yet bright enough to light a room. To boost the output of OLEDs, Forrest and colleagues have exploited the way electrons behave inside the devices.


2. Safe Harbor: Protecting Ports with Shipboard Fuel Cells

 

AUTHOR Taylor, David A.

SOURCE Environmental Health Perspectives, April 2006, v114 n4, ppA236-239

ABSTRACT With five of the largest harbors in the United States, California is beginning to take steps to manage the large amounts of pollution generated by these bustling centers of transport and commerce. One option for reducing diesel emissions is the use of fuel cells, which run cleaner than diesel and other internal combustion engines. Other technologies being explored by harbor officials are diesel-electric hybrid and gas turbine locomotives for moving freight within port complexes.


3. Highly Reactive, Blocking Agent-Free Polyurethane Powder Coatings

AUTHOR Spyrou, Emmanouil; Loesch, H.; Weiss, J.-V.

SOURCE PCI, Paint & Coatings Industry, November 2005, v21 n11, pp58-62

ABSTRACT Polyurethane (PU) coatings are known for their excellent coating properties, good weather stability and versatility of formulation. In particular, powder coating technology — besides water-based dispersions — has made it possible to apply PU formulations in a solvent-free and, hence, environmentally friendly manner. However, conventional PU powder coatings release blocking agents during the hardening process, which are undesired both ecologically and economically. Internally blocked and, hence, emission-free PU powder coatings do not have this drawback. Unfortunately, up to now these blocking agent-free PU powder coatings required hardening temperatures of 180 °C and higher, excluding the possibility of applying these coatings on temperature-sensible substrates like wood, plastics and pre-assembled parts. In this article novel catalysts are described, which allow decreasing the hardening temperature to 120 °C and even lower.


4. Shaping the Future of Sustainable Finance: Moving from Paper Promises to Performance

SOURCE WWF, in association with BankTrack

ABSTRACT Until recently, most major commercial and investment banks did not consider environmental and social concerns to be particularly relevant to their operations. Today, however, they and their key stakeholders agree that financiers bear significant responsibility for the environmental and social impacts of the operations they finance. Within the banking sector, addressing environmental and social issues is now considered critical to the proper management of transaction, portfolio and reputational risks. The question is no longer whether commercial banks should address the sustainable development aspects of the activities they support, but how they should do it – what substantive standards should they apply? How should they implement them? And how should they assure compliance? The primary objective of this report is to review the environmental and social policies adopted by key institutions in the commercial banking sector (as of September 2005). It provides a detailed analysis of how these policies compare with each other, and, perhaps more crucially, how they measure up to international rights, standards and best practice. The report assesses the environmental and social policies of 39 banks, including all the private sector banks that had signed the Equator Principles by September 2005, plus eight others. 9 As originally conceived, this report also had a secondary objective – to assess the implementation and application of the sustainable development policies adopted by the banking sector. However, a comprehensive evaluation of the banks’ implementation was foreclosed by the near total lack of information they have placed in the public domain. The banks’ lack of transparency regarding implementation not only makes independent evaluation impossible, but also leaves them open to legitimate charges of “greenwash” – that they are adopting environmental rhetoric with little commitment to changing their performance.


5. Washington State Polybrominated Diphenyl Ether (PBDE) Chemical Action Plan: Final Plan

 

SOURCE Washington State Department of Ecology and Washington State Department of Health, January 19, 2006

ABSTRACT This is the final version of the Chemical Action Plan (CAP) for a class of flame retardants called polybrominated diphenyl ethers, or PBDEs. It is the second CAP done as part of the Department of Ecology (Ecology)’s Proposed Strategy to Continually Reduce Persistent, Bioaccumulative Toxins (PBTs) in Washington State (issued December, 2000). Ecology is also finalizing a rule (Chapter 173-333 WAC, Persistent Bioaccumulative Toxins Regulation) to guide the development of CAPs. This CAP is consistent with both the Strategy and the PBT rule. The first CAP, for mercury, was completed in January 2003. This document builds on the Interim PBDE CAP which was released in December, 2004. Based on the available information at that time, Ecology and DOH believed that a ban on products containing PBDEs was warranted. However, further study of how a ban could be structured was needed, including research on chemical alternatives for PBDEs and on costs and benefits. This research, and a thorough review of the most current scientific information about the environmental and human health risks of PBDEs, was considered in the development of this plan. In addition, Ecology and DOH kept a close watch on the experiences of other states and Europe where policies to reduce PBDEs have been crafted. The recommendations in this Chemical Action Plan were developed after a thorough consideration of what is known and what is not known. We believe these recommendations represent prudent policy, and that the suggested actions are commensurate with the risk involved, both to human health and the environment as well as to Washington businesses. What we want to avoid is adopting a policy that allows the continued build-up of PBDEs in our bodies and in the environment as we try to resolve the unknowns.


6. Evidence that Monochloramine Disinfectant Could Lead to Elevated Pb Levels in Drinking Water

AUTHOR Switzer, Jay A.; Rajasekharan, Vishnu V.; Boonsalee, Sansanee; Kulp, Elizabeth A.; Bohannan, Eric W.

SOURCE Environmental Science & Technology Research ASAP, April 12, 2006

ABSTRACT Many water districts have recently shifted from free chlorine (in the form of HOCl/OCl-) to monochloramine (NH2- Cl) as a disinfectant for drinking water to lower the concentration of chlorinated hydrocarbon byproducts in the water. There is concern that the use of NH2Cl disinfectant may lead to higher Pb levels in drinking water. In this study, the electrochemical quartz crystal microbalance is used to compare the effects of these two disinfectants on the dissolution of Pb films. A 0.5 ím thick Pb film nearly completely dissolves in a NH2Cl solution, but it is passivated in a HOCl/OCl- solution. X-ray diffraction analysis shows that the NH2Cl oxidizes Pb to Pb(II) species such as Pb3- (OH)2(CO3)2, whereas the stronger oxidant, HOCl/OCl-, oxidizes Pb to Pb(IV) as an insoluble PbO2 conversion coating. Although NH2Cl may produce less halogenated organic byproducts than HOCl/OCl- when used as a disinfectant, it may lead to increased Pb levels in drinking water.


7. Nanotech Consumer Product Recalled in Germany: Glass-treating spray containing nanoparticles has caused medical problems in many consumers

AUTHOR Thayer, Ann M.

SOURCE Chemical & Engineering News, April 7, 2006

ABSTRACT On March 31, the German Federal Institute for Risk Assessment (BfR) issued a warning against using a household product containing nanoparticles that has led to what is apparently the first recall of a nanotechnology-based product. In a period of less than two weeks, regional poison control centers in Germany received about 80 reports of people coughing or complaining of fever and headache, and several people were hospitalized with pulmonary edema, after using "Magic Nano" surface-sealing sprays. Cleaning-product manufacturer Kleinmann GmbH, which packages and sells the sprays, quickly withdrew aerosol formulations that also contain a propellant and warned against their further use. The company has sold the products in pump bottles for more than two years and has had no reports of problems. The sprays are designed for treating glass and ceramic surfaces to make them water- and dirt-repellant for easier cleaning.


8. EPA Technical Study on the Safety of Emission Controls for Nonroad Spark-Ignition Engines Below 50 Horsepower

SOURCE United States Environmental Protection Agency (EPA), Office of Transportation and Air Quality

ABSTRACT The U.S. Environmental Protection Agency (EPA) has prepared a report evaluating the potential safety effects of applying new emission controls to nonroad spark-ignition (SI) engines. The technical study concludes that adding emission control technologies would not increase the risk of fire and burn to consumers, including fire due to contact with flammable items and refueling.


9. Obstacles to and potentials of the societal implementation of sustainable development: a comparative analysis of two case studies

AUTHOR Kastenhofer, Karen; Rammel, Christian

SOURCE Sustainability: Science, Practice & Policy, Fall 2005, v1 n2, pp5-13

ABSTRACT Currently, a growing societal awareness of problems in the context of unsustainable development meets with conflicts of interest, and the actual implementation of sustainability research, and sustainable innovations and technologies, has only been mildly successful. Sustainable development demands nothing less than a radical change in our modes of consumption, production, technology, and decision-making. We have investigated the obstacles to and potentials of such a change in two representative case studies, one focusing on the role of sustainability research within science, the other on the energy-efficient refurbishment of old buildings. A short presentation of the methodological approaches, and the respective results, is followed by a comparative systemic analysis of the two fields of investigation. Finally, we discuss possible implications of the discovered systemic comparisons for societal transition processes.


10. Yale Researchers Find Environmental Toxins Disruptive To Hearing In Mammals

SOURCE ScienceDaily, www.sciencedaily.com, April 11, 2006

ABSTRACT Yale School of Medicine researchers have new data showing chloride ions are critical to hearing in mammals, which builds on previous research showing a chemical used to keep barnacles off boats might disrupt the balance of these ions in ear cells. "Our data are the first to directly show that chloride ions are crucial for our exquisite sense of hearing," said Joseph Santos-Sacchi, professor in the Departments of Surgery and Neurobiology and first author of the study in the Journal of Neuroscience. "These data also indicate that the hearing in marine and other mammals could be affected by environmental toxins, such as TBT (tributyl tin), because they appear to alter the balance of chloride ions in the outer hair cell."

 

You are welcome to send a message to jan@turi.org if you would like more information on any of these resources. Also, please tell us what topics you are particularly interested in monitoring, and who else should see GREENLIST. An online search of the TURI Library catalog can be done at http://greenlist.turi.org/ for greater topic coverage.

Compiled by the TURI Library, University of Massachusetts Lowell



This page updated Friday April 21 2006