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Topic: Lead-in

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Lead - Wikipedia, the free encyclopedia Lead pipes that bear the insignia of Roman emperors are still in service and many Roman "pigs" (ingots) of lead figure in Derbyshire lead mining history and in the history of the industry in other English centres. Lead is used as a coloring element in ceramic glazes, notably in the colors red and yellow. Lead is used as electrodes in the process of electrolysis. en.wikipedia.org /wiki/Lead   (1400 words)

Lead Poisoning - NSC Exposure to lead is estimated by measuring levels of lead in the blood (in micrograms of lead per deciliter of blood). In other words, if a woman had been exposed to enough lead as a child for some of the lead to have been stored in her bones, the mere fact of pregnancy can trigger the release of that lead and can cause the fetus to be exposed. The lead produced by vehicle emissions continues even today to present a hazard, as much of that lead now remains in soil where it was deposited over the years, especially near well-traveled roads and highways. www.nsc.org /library/facts/lead.htm   (2958 words)

Lead Lead was brought by the Phoenicians from the Cornwall mines in Great Britain, being found associated with tin ore. The Cassiterides were long the main source of lead and tin for Europe, even down to relatively modern times. Lead actually became quite common during the Roman period, as lead is a common by-product of silver mining. Lead is believed to have been the first metal extracted from its ore, possibly discovered in a fire-ring using lead-bearing stones. www.ancientroute.com /resource/metal/lead.htm   (3821 words)

lead Lead was found in 52% and 58% of the 98 and 110 composites sampled in the infant and toddler total diet study respectively, with lead concentrations ranging from 0.003-0.51 ppm. One study of the distribution of lead between filtrate and solids in stream water from urban and rural areas reported the ratio of lead in suspended solids to that in filtrate varied from 4% in rural areas to 27% in urban areas. Concns of lead in a polluted sediment in the Rhine River near Mainz ranged from 32 ppb to 4 ppm and are primarily bound to organic matter in an extremely reducing environment. www.speclab.com /elements/lead.htm   (7015 words)

Lead Lead is still used for sheathing cables, in bearing alloys, in artistic pigments and glazes, for decorative glass, in the chemical industry, and, of course, for bullets, which have always been in special demand in the United States. Now, lead is a systemic poison, but its use in paint and motor fuel was thought safe because nobody ate paint or scraped it into their coffee, and there was lots of air to dilute the lead coming out of exhaust pipes. Lead was, indeed, used in machines of all kinds, not as a structural material, but where its fusibility and workability were an advantage, and for many small items of daily use. www.du.edu /~jcalvert/phys/lead.htm   (8222 words)

ATSDR - ToxFAQs™: Lead Lead is a naturally occurring bluish-gray metal found in small amounts in the earth's crust. Deteriorating lead paint can contribute to lead dust. EP is a part of red blood cells known to increase when the amount of lead in the blood is high. www.atsdr.cdc.gov /tfacts13.html   (1190 words)

It's Elemental - The Element Lead Lead is also used as a covering on some wires and cables to protect them from corrosion, as a material to absorb vibrations and sounds and in the manufacture of ammunition. Lead monoxide (PbO), also known as litharge, is a yellow solid that is used to make some types of glass, such as lead crystal and flint glass, in the vulcanizing of rubber and as a paint pigment. Most lead is obtained by roasting galena in hot air, although nearly one third of the lead used in the United States is obtained through recycling efforts. education.jlab.org /itselemental/ele082.html   (480 words)

Sources of Indoor Air Pollution - Lead Lead paint in good condition is usually not a problem except in places where painted surfaces rub against each other and create dust (for example, opening a window). In late 1991, the Secretary of the Department of Health and Human Services called lead the "number one environmental threat to the health of children in the United States." There are many ways in which humans are exposed to lead: through air, drinking water, food, contaminated soil, deteriorating paint, and dust. Lead exposure in children can result in delays in physical development, lower IQ levels, shorten attention spans, and increase behavioral problems. www.epa.gov /iaq/lead.html   (1681 words)

MedlinePlus Medical Encyclopedia: Lead poisoning Lead can be found in drinking water in homes whose pipes were connected with lead solder. Lead used to be very common in gasoline and house paint in the U.S. Although these items are no longer made with lead in them, lead is still a health problem. Lead is much more harmful to children than adults because it can affect children's developing nerves and brains. www.nlm.nih.gov /medlineplus/ency/article/002473.htm   (1360 words)

Lead Poisoning Prevention: Environmental Health - Minnesota Dept. of Health All members of the lead program staff share responsibility for educating and communicating effectively about the risks posed by lead in all areas of the state where cities of the first class have not assumed responsibility for lead inspection and hazard reduction. Because lead is commonly found in the environment, activities carried out by the MDH Lead Program affect virtually all residents of Minnesota. The MDH lead program encourages primary prevention, provides guidance and support to individuals exposed to lead, and fulfills the three core public health functions of assessment, assurance, and policy/planning. www.health.state.mn.us /divs/eh/lead   (468 words)

LEAD IS ALL AROUND US Lead in the body is dangerous because it interferes with normal body functions. LEAD IS ALL AROUND US Lead is so common because it has been such a useful metal in many ways -- easy to work with simple tools, handy, and cheap. Because children are still developing, the potential damage to their development from lead exposure is very important to their future health and well-being. www.niehs.nih.gov /oc/factsheets/lyh/lyh.htm   (193 words)

EPA/OPPT: Lead in Paint, Dust, and Soil Lead is a highly toxic metal that was used for many years in products found in and around our homes. Lead may cause a range of health effects, from behavioral problems and learning disabilities, to seizures and death. The Agency’s Lead Awareness Program continues to work to protect human health and the environment against the dangers of lead by developing regulations, conducting research, and designing educational outreach efforts and materials. www.epa.gov /lead   (416 words)

LEAD Home Page LEAD Technologies makes evaluations and provides its clients with comprehensive design and installation recommendations that enable the client to meet their business and technical goals, taking full advantage of the latest computer networking technologies. LEAD Technologies, Inc., established in 1990, is a networking and technology consulting company based in Haddonfield, New Jersey. Our website is currently undergoing transition, please bear with us as we make changes to bring you more information about LEAD Technologies www.leadtech.com   (131 words)

CDC - Lead - Home However, lead is still found in ammunition, some batteries, and medical and scientific equipment. Because lead does not breakdown or decompose, lead from past products, such as old paints and discarded batteries, remains in the environment. Because of these health concerns, great effort has been undertaken in the United States over the last two decades to remove lead from gasoline, paints, and many other products. www.cdc.gov /lead   (208 words)

Pb = Lead - a Toxic Element Lead exposure in young children results primarily from ingestion or inhalation of soil particles, drinking water, paint, and dust particles in and around the home and play areas. At the time lead was eliminated from gasoline, close to 80% of all children had levels of lead that would exceed today’s federal safety limit of 10 micrograms per deciliter of blood. The lower the pH of the water and the lower the concentration of dissolved salts in the water, the greater is the solubility of lead in the water. www.luminet.net /~wenonah/hydro/pb.htm   (4703 words)

Safety and Health Topics: Construction - Lead Lead overexposure is one of the most common overexposures found in industry and is a leading cause of workplace illness. Lead poisoning is the leading environmentally induced illness in children. In general populations, lead may be present in hazardous concentrations in food, water, and air. www.osha.gov /SLTC/constructionlead   (291 words)

Chemistry : Periodic Table : lead : key information Lead pipes bearing the insignia of Roman emperors, used as drains from the baths, are still in service. Small and large samples of lead foil, sheet, and wire (and lead alloy in ingot form) can be purchased from Advent Research Materials via their web catalogue. Lead isotopes are the end products of each of the three series of naturally occurring radioactive elements. www.webelements.com /webelements/elements/text/Pb/key.html   (275 words)

LEAD Welcome By encouraging outstanding high school juniors from diverse backgrounds to pursue careers in business, LEAD is inspiring a new generation of business leaders. A national partnership of America's top corporations and business schools, the Leadership Education and Development Program in Business (LEAD) is at the forefront of building a talented and diverse workforce ready for the business environment. Whether you are a student exploring career opportunities, a business school interested in partnering with a summer youth enrichment program, or a corporation looking for an exciting new way to connect with the next generation of business executives, LEAD is your partner -- for today and for the future. www.leadnational.org   (140 words)

Lead SD Chamber of Commerce Lead Area Chamber of Commerce, 309 W Main St. Suite A, Lead, South Dakota 57754, Located just minutes from Presidents Park, Deadwood, Mount Rushmore, Crazy Horse, Spearfish Canyon, Wind Cave, Jewel Cave, Custer State Park and Devils Tower, Lead is your ideal vacation headquarters. High in the Black Hills, perched precariously on its steep inclines stands one of South Dakota's most memorable communities - Lead. www.leadmethere.org   (200 words)

Lead Safety Lead Exposure in Construction-Housekeeping, Hygiene (#3 of 6) Lead Exposure in Construction-Medical Surveillance (#6 of 6) Lead Programs (Collection of Regulatory Info from EPA) www.pp.okstate.edu /ehs/links/lead.htm   (137 words)

Childhood Lead Poisoning Prevention Program Home Page CDC Lead Poisoning Associated with Use of Litargirio --- Rhode Island, 2003 MMWR 2005;54(09):227-229. Preventing Lead Exposure in Young Children: A Housing-Based Approach to Primary Prevention of Lead Poisoning (PDF) Using GIS to Assess and Direct Childhood Lead Poisoning Prevention: Guidance for State and Local Childhood Lead Poisoning Prevention Programs www.cdc.gov /nceh/lead/lead.htm   (176 words)

Lead Scotland :: Linking Education and Disability Lead Scotland, Linking Education and Disability, is a voluntary organisation set up to widen access to learning for disabled adults and carers in many areas of Scotland. Lead Scotland is a charity registered in Scotland. Please email enquiries@lead.org.uk or contact us by phone, fax or writing. www.lead.org.uk   (138 words)

Linked Environments for Atmospheric Discovery Welcome to the home page for LEAD, a National Science Foundation Large Information Technology Research (ITR) project that is creating an integrated, scalable cyberinfrastructure for mesoscale meteorology research and education. NewsletterMail lists Calendar Other ITR Efforts LEAD Internal National Conferences Public Relations Technology Links Grid Technology Links Meteorology Links Real Time Forecasts LEAD is funded by the National Science Foundation. lead.ou.edu   (145 words)

Video Codecs - Download MPEG Codecs, Download OGG and AVI Codecs : Codec Pack LEAD's collection of codecs include MPEG, MPEG2, H263, MJPEG, MJPEG2000, MCMP, MCMW and the latest video compression standard, H264. Information about LEAD Technologies, Press Releases, and Press Contacts. LEAD Technologies offers several codecs to save and play multimedia files. www.leadcodecs.com   (204 words)

LEAD - Livestock, Environment and Development - Virtual Research and Development Centre - Connecting People LEAD - Livestock, Environment and Development - Virtual Research and Development Centre - Connecting People www.virtualcentre.org /en/frame.htm   (15 words)

Home Lead LEAD International  Sundial House, 114 Kensington High Street, London W8 4NP, UK   Top We mobilise the collective talent of our network through innovative projects and programmes that help to implement sustainable development. www.lead.org   (70 words)

LeaderShipShape GEMS (Global Education Management Systems), a leading education provider in the region, yesterday commenced a 13-month training programme for senior leaders in all GEMS schools who aim to become heads of schools. Junior Minister of Education in the Nevis Island Administration (NIA) Livingston Herbert stressed the importance of leadership and the need for the island’s top educators to lead from the front, engage the community now more than ever and to take ownership of their schools... Every now and then we like to focus on leadership-development programs taking place outside the U.S. Today we note one in the United Arab Emirates: www.e-lead.org   (680 words)

Lead azide - Wikipedia, the free encyclopedia Lead azide reacts with copper, zinc, cadmium, or alloys containing these metals to form other azides. Lead azide, when protected from humidity, is completely stable in storage. The hygroscopicity of lead azide is very low, and water does not reduce its impact sensitivity. en.wikipedia.org /wiki/Lead_azide   (232 words)

Lead generation - Wikipedia, the free encyclopedia Lead generation is largely a rendezvous problem where there is a set of well-matched candidates for product purchase within a larger set of poorly matched candidates. Lead generation is a marketing term that refers to the manufacture of connections between well-matched consumers and target corporate vendors. Lead Generation is especially important in the real estate and mortgage industries where each lead could generate thousands of dollars in income. en.wikipedia.org /wiki/Lead_generation   (328 words)

Lead sulfide - Wikipedia, the free encyclopedia Lead sulfide and several other lead salts are used as detection element material in various infra-red sensors. Lead sulfide (British/Commonwealth English sulphide) is a chemical compound PbS, most often purified from the mineral galena. Lead can acccumulate in the body (see lead poisoning). en.wikipedia.org /wiki/Lead_sulfide   (519 words)

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