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Topic: TCE


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In the News (Mon 28 Dec 09)

  
  Trichloroethylene (TCE)
TCE is sometimes called by other names, such as trichloroethene, ethylene trichloride, or ethinyl trichloride.
TCE evaporates very quickly; in a closed container, it can build up to levels three hundred times as high as the Ceiling Limit that must never be exceeded.
TCE quickly penetrates the material of most types of protective gloves and aprons; materials that may be a little more resistant include Teflon, Silvershield, chlorobutyl rubber, and possibly SBR/neoprene rubber.
www.dhs.ca.gov /ohb/HESIS/tce.htm   (2438 words)

  
  ES&T Online News: Phytoremediation releases TCE to the atmosphere
TCE is an organic solvent mainly used in dry cleaning and metal-degreasing operations.
In an earlier study, it was reported that mineralization of TCE in soil, primarily by bacteria residing in the rhizosphere around plant roots, was the key mechanism, and metabolic degradation or accumulation in tree tissue appeared to be minor processes (Environ.
TCE concentrations were not only found to decrease along the tree’s height, but also when moving outward from the core to the bark.
pubs.acs.org /subscribe/journals/esthag-w/2003/may/tech/os_tce.html   (462 words)

  
 Texas Campaign for the Environment: About TCE
TCE is dedicated to informing and mobilizing Texans to protect the quality of their lives, their health, their communities and the environment.
TCE is a non-partisan, non-profit citizens' organization that focuses on local and state issues.
Contributions to TCE are not tax-deductible because we want the freedom to organize to affect public policy and hold elected officials accountable to the residents of Texas.
www.texasenvironment.org /about_tce.cfm   (559 words)

  
 == TCE ==
Today, TCE is one of only a handful of Asian-based photomask providers offering mass production of reticles at 90 nanometer process node and research, development and test production of reticles at 65 nanometer process node.
TCE and parent company Toppan have made continual investments in advanced E-beam writers, and own and operate state-of-the-art JBX3030 and EBM4000 E-beam writers.
TCE's expertise in strong PSM know-how is helping customers achieve more effective yields for subwavelength microlithography.
www.tce.com.tw /main02.html   (183 words)

  
 Trichloroethene (TCE) in Indoor and Outdoor Air
TCE is a common name for trichloroethene and will be used for the rest of this fact sheet.
TCE may also enter homes through vapor intrusion as described on page 1 in the question "How can I be exposed to TCE?".
If TCE is in the indoor air as a result of vapor intrusion, a sub-slab depressurization system, much like a radon mitigation system, will reduce exposures by minimizing the movement of vapors that are beneath a slab into a building.
www.health.state.ny.us /environmental/investigations/soil_gas/svi_guidance/fs_tce.htm   (1837 words)

  
 Tata Group | Our companies | TCE Consulting Engineers | Profile
TCE Consulting Engineers, a wholly owned subsidiary of Tata Sons, is a premier engineering consultancy enterprise.
TCE is the successor of Tata Consulting Engineers, which was established in 1962.
TCE secured ISO 9001 certification from Lloyd's Register Quality Assurance in 1994 and was re-certified in 1997 and 2000.
www.tata.com /tce_cons_engg/index.htm   (154 words)

  
 CLU-IN.ORG | Contaminant Focus: TRICHLOROETHYLENE (TCE), Overview
TCE breaks down more slowly in surface water and soil than in air, and it can pass through the soil into underground water.
TCE exposure can be associated with several adverse health effects, including neurotoxicity, immunotoxicity, developmental toxicity, liver toxicity, kidney toxicity, endocrine effects, and several forms of cancer.
TCE usually is remediated through pump and treat, using either air stripping or granular activated carbon, but there are many innovative cleanup methods—physical, chemical, thermal, and biological—that have been applied successfully to remove TCE from soil and ground water or to convert it into nonhazardous compounds.
clu-in.org /contaminantfocus/default.focus/sec/Trichloroethylene_(TCE)/cat/Overview   (441 words)

  
 TCE in Drinking Water: Minnesota Dept. of Health
TCE is used primarily in industrial processes to remove grease from metal parts.
Because TCE is very volatile (it evaporates quickly), it is not usually present in surface soils or in open water.
In response to the draft EPA health risk assessment for TCE, the Minnesota Department of Health (MDH) is recommending that an exposure limit of five micrograms of TCE per liter of water (5 µg/L) be used in place of the existing MDH Health Risk Limit (HRL) of 30 µg/L for drinking water from private wells.
www.health.state.mn.us /divs/eh/hazardous/topics/tce.html   (1339 words)

  
 Geophysical Logging and Packer Testing to Determine Depth of Trichloroethene (TCE) Contamination in the Vicinity of Oak ...
Pumping at each interval continued until TCE concentrations estimated by the portable GC appeared to stabilize, after which, a final split sample was collected and analyzed by the portable GC and submitted to the MDNR for laboratory analysis of volatile organic compounds using USEPA method 524.2.
To further identify intervals contributing TCE to the borehole, a discrete sampler was used to collect water samples from specific depths during several packer tests.
The smaller TCE concentrations in test 6B compared to test 5A and smaller drawdown (2.66 ft compared to 5.08 ft), despite a doubling of the pumping rate, suggest that the interval between 578 and 620 ft deep yields significant quantities of relatively uncontaminated water.
pubs.usgs.gov /sim/2005/2864   (2851 words)

  
 [No title]
TCE is still used a solvents and glues, but there is no evidence that large volumes are sold or released in the Los Angeles area.
It’s possible, however, that some industries are still using and releasing TCE without reporting it to the government, either because there are still loopholes in the law, or because they are simply ignoring their legal responsibilities.
TCE’s risk must be considered in light of ongoing exposures to a multitude of pollutants through all pathways.
www.cpeo.org /pubs/TCE-LA.doc   (1841 words)

  
 Facts about TCE
TCE does not accumulate or build up in plants so it is unlikely that any significant amount of TCE would be present in the vegetables grown in the vegetable gardens.
Additionally, the levels of TCE found in wells are not expected to cause harmful effects in cats and dogs; TCE levels causing cancer and other health effects in experimental animals were several folds higher than the levels found in wells in Loudoun County.
TCE at levels detected so far in the wells is not anticipated to absorb through the skin or through inhalation of vapors in sufficient amounts to cause adverse effects.
www.loudoun.gov /issues/tcefacts.htm   (975 words)

  
 Total Control of the Epidemic-TCE
Each TCE Field Officer is allocated a field of 2,000 people, approximately 350 households, and is tasked with the responsibility to reach all 2,000 people with information and education on HIV and AIDS.
TCE program has changed people's lives and it has proved to be an effective way to implement knowledge and change of attitude towards HIV infection.
TCE Medical Centre carries out research on the effects of cheap and accessible methods in reducing the effects of the HIV infection, like the combined nutrition additive of selenium, aspirin and multivitamins.
www.humana.org /TextPage.asp?MenuItemID=42&SubMenuItemID=146   (1047 words)

  
 True Combat Elite :: An Enemy Territory Modification
TCE is currently being developed by GrooveSix Studios and Team Terminator.
TCE puts you into the role of elite mercenary soldier in the conflicts of two internationally operating forces.
TCE is currently in a continuious state of development with new features and content being added and "tweaked".
www.truecombat.us /tce.php?page=overview   (299 words)

  
 TCE contamination at View-Master Plant
Most studies of the effects of TCE on people have looked at workers who had direct contact with concentrated TCE on their skin or who were exposed by breathing fumes.
Because TCE easily reaches the developing fetus and is passed into breast milk, unborn children and nursing infants are a population of special concern.
Although some TCE could have been absorbed though the skin during hand washing, or breathed in when the TCE evaporated from the water, these exposures were probably too low to present a measurable health risk.
www.oregon.gov /DHS/ph/eoe/viewmaster/tcefaq.shtml   (1883 words)

  
 TCE Use Policy
TCE reserves the right to impose a restriction on accounts it deems to be in violation of these conditions.
TCE account descriptions in some cases may specify limits on bandwidth, CPU and disk utilization for certain types of Customers, and use up to these limits is included in the price for that type of Customer.
TCE reserves the right to cooperate with law enforcement and other authorities in investigating claims of illegal activity including, but not limited to, illegal transfer or availability of copyrighted material, postings or e-mail containing threats of violence or other illegal activity.
www.tcenet.net /usepolicy.html   (2198 words)

  
 CLU-IN: Phytoremediation of TCE in Groundwater using Populus
TCE is a dense non-aqueous-phase liquid (DNAPL), meaning that it is denser than water and therefore tends to exist in undissolved pools in the bottom an aquifer.
TCE has been found to be carcinogenic to laboratory mice in a number of studies reported by the National Institute of Environmental Health Sciences (T-2, TR-243).
TCE was found to be a mutagen when tested using microbial assay systems, and chronic inhalation exposure to TCE causes liver, kidney, neural, and dermatological reactions in animals (Clement Associates 1985).
www.clu-in.org /products/intern/phytotce.htm   (12077 words)

  
 Chemical Fact Sheets -- Trichloroethylene
If levels of TCE are very high in your water (greater than 300 parts per billion), you may also need to avoid washing, bathing, or using the water for other purposes.
There are tests to detect TCE in the breath, urine, and blood of people exposed to high levels of the compound within the previous 24 hours.
TCE cannot be measured in people when it results from long-term, low-level exposure.
www.dhfs.state.wi.us /eh/ChemFS/fs/TCE.htm   (793 words)

  
 CBC Marketplace: TCE Water Woes   (Site not responding. Last check: 2007-10-17)
TCE is still widely used in industry to degrease machine parts.
In the 1960s and 1970s, TCE was commonly dumped in landfills and occasionally spilled in industrial accidents.
He says TCE is "a carcinogen in the liver, in the kidney, in the lung.
www.cbc.ca /consumers/market/files/environ/tce/index.html   (710 words)

  
 CapeGazette.com - Covering Delaware's Cape Region
TCE is a clear liquid used as a solvent by industries and also by dry cleaners.
“TCE exposure is associated with several adverse health effects, including neurotoxicity, immunotoxicity, developmental toxicity, liver toxicity, kidney toxicity, endocrine effects, and several forms of cancer,” reads the report.
The allowable level of TCE in water is regulated at five parts per billion (ppb), but water tested in the Millsboro and Dagsboro area had almost 15 times that in October.
www.capegazette.com /storiescurrent/0606/millsborotce060206.html   (1046 words)

  
 TCE Consulting Engineers Limited
TCE Consulting Engineers Limited (TCE) is recognised as the leading consulting engineering organisation in India.
TCE has executed projects in diverse areas like water supply and waste water treatment, chemical and industrial, townships, IT parks, hotels, roads and bridges, ports, harbors, offshore structures and special projects.
TCE is associated with over 30,000 MW of generating capacity in India and abroad.
www.tce.co.in   (183 words)

  
 The TCE Blog - -
TCE and vapor intrusion in Victor, a suburb of Rochester (NY)
According to the article, some kind of announcement regarding TCE contamination in the area is expected April 6.
TCE, once used as an industrial degreaser and dry-cleaning chemical, is a suspected carcinogen, and the contaminant was discovered in Tomstown after water testing was conducted for the proposed Mentzer Meadows development.
www.tceblog.com   (5295 words)

  
 [No title]
TCE is the universal toxic contaminant, found in at least 852 of U.S. EPA's nearly 1,500 “Superfund” National Priorities List sites and thousands of other properties.
Liquid TCE sinks and spreads within ground and surface water, yet the chemical also vaporizes and rises to the surface.
The assessment addresses a chemical, trichloroethylene (TCE), significant for being a nearly ubiquitous environmental contaminant in both air and water, being a common contaminant at Superfund sites, and because it is “listed” in many Federal statutes and regulations.
cpeo.org /pubs/TCE6-05.doc   (1024 words)

  
 TCE
TCE Consulting Engineers Limited (TCE) is one of India's premier engineering consultancy firms, offering comprehensive multi disciplinary solutions for a wide range of projects.
TCE’s culture is one where openness and teamwork is valued.
TCE provides both technical and behavioural training for its employees to equip them to face the dynamic business needs and for self-development.
www.naukri.com /gpw/tce   (327 words)

  
 VICTIMS OF TCE EXPOSURE
DEQ's investigation of the TCE contamination found that TCE was used from 1950-1981 in the vapor degreasing machine next to the paint shop to degrease the metal parts used in the mechanisms that were used in the inside of the projectors and viewers.
Unfortunately the TCE did not evaporate because it sank through the ground and contaminated the Columbia Basalt River Basin Aquifer used by the View-Master plant for employee and industrial purposes.
However it is Victims of TCE Exposure.A Lasting Legacy belief that inconclusive information should still be presented to those exposed to TCE so that they can come to their own conclusions and take action based on what each former worker and family deems is right for their needs.
www.victimsoftceexposure.org /faq.htm   (1590 words)

  
 Getting and Using the TCE
Version 1.0 of the Tensor Contraction Engine (TCE) is available, and we are looking for quantum chemists who are interested in making use of the TCE in their software development efforts and are willing to work with us to broaden the capabilities of the TCE and give us feedback on its use.
TCE v1.0 is the Python-based tool which we often refer to as the "prototype" TCE.
TCE v1.0 is distributed as part of NWChem, and code generated by TCE is most easily interfaced with NWChem (for integrals, reference wavefunction, etc.).
bit.csc.lsu.edu /~gb/TCE/getting-tce.html   (882 words)

  
 EPA: EIMS TRICHLOROETHYLENE (TCE) HEALTH RISK...
TCE is a solvent that has been widely used for vapor degreasing of metal parts, as an ingredient in adhesives, paint removers, correction fluid and spot removers, and as an extractant and chemical intermediate.
TCE can enter surface waters via direct discharges and groundwater through leaching from disposal operations and Superfund sites; the maximum contaminant level for TCE in drinking water is 5 ppb.
TCE can be released to indoor air from use of consumer products that contain it, vapor intrusion through underground walls and floors and volatilization from the water supply.
oaspub.epa.gov /eims/xmlreport.display?deid=119268&z_chk=31804   (807 words)

  
 IEC: Test Creation Environment (TCE)
The goal is to achieve a TCE that is analogous to the SCE, as a TCE can provide the user with an environment that supports the creation, management, and execution of various AIN and INAP test cases.
The TCE allows the user to assign static data values and operations to handle dynamic data items in real time during a test execution.
Assume for this example that the TCE is being used to simulate an originating SSP.
www.iec.org /online/tutorials/tce/topic04.html   (1480 words)

  
 The TCE Blog - LA Times on National Academies' TCE report (CA)
If you recall, in 2001, EPA's Draft Health Risk Assessment for Trichloroethylene found TCE to be more toxic than previously thought and characterized TCE as "highly likely to produce cancer in humans".
The report urged federal agencies to complete their assessment of TCE risks as soon as possible "with currently available data," meaning they should not wait for additional basic research, as suggested by the Defense Department.
In Hinchey's district, where widespread TCE contamination has impacted the air inside people's homes, a health study found that rates of kidney cancer, testicular cancer, and birth defects were elevated with statistical significance.
www.tceblog.com /posts/1154007409.shtml   (1135 words)

  
 BAHB Civiletti TCE Studio   (Site not responding. Last check: 2007-10-17)
The TCE is the most successful brass embouchure method in the world, and is endorsed by some of the world’s most famous brass players.
This is evident in my playing and demonstrated by the many successful students I have all over the world.
The purpose of this website is to introduce the technique of the TCE to as many people as possible and to help them understand what it sounds like to have a centered sound, perfect intonation and a high playing range.
www.tce-studio.com /main.html?hq   (138 words)

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