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1. MA DEP Fluorescent Lamp Management for Consumers
- www.mass.gov
- Fluorescent Lamp Management for Consumers .
- The phosphor powder found inside fluorescent lamps - not only the familiar tubes, but the new "energy saver" lamps designed to replace conventional incandescent light bulbs - contains mercury. For that reason, used fluorescent lamps need to be handled and disposed of carefully. ...
- Under certain conditions, fluorescent lamps burned in waste-to-energy plants can release mercury to the air and water. ...
- What should I do with my fluorescent lamps after they burn out?.
- Some communities accept used fluorescent lamps for recycling either at permanent collection sites or during specially scheduled household hazardous waste collection days. ... If there are no recycling opportunities now, try to save your fluorescent lamps until you can dispose of them safely.
- There are a number of companies both in New England and across the country that dismantle used fluorescent lamps, remove the mercury-containing phosphor powder for later reuse and recycle the remaining aluminum and glass components.
- How can I find fluorescent fixture recyclers in Massachusetts? .
- Consult the on-line Recycling Services Directory and Markets Guide for Massachusetts for a list of companies that recycle fluorescent fixtures. Fluorescent handlers are listed in the "Fluorescent Fixtures" section of the directory.
2. Fluorescent Lights and Neon Signs
- fusedweb.pppl.gov
- Fluorescent Lights and Neon Signs.
- Two of the most common plasma devices on the planet are the fluorescent light bulb, and its cousin, the neon sign. Since their development in the 1940÷s, fluorescent bulbs have become the lighting fixture of choice in offices, factories, and schools, and they are beginning to be found more widely in homes as well. ... This page will outline some of the physics behind these ubiquitous devices, focusing on the fluorescent light. ...
- The light from fluorescent light bulbs looks white in most cases, and that white color is a combination (as it is with sunlight) of all of the colors of the visible spectrum. In the case of the fluorescent bulb, the material that is actually doing the glowing is a white powder applied to the inner wall of the bulb÷s long glass tube. This powder (commonly called a ?phosphor÷, although it may not have any phosphorus in it) is giving off the white light we see through a process called fluorescence, which is the basis of the name ?fluorescent÷ light bulb. ... In the fluorescent bulb, high-energy ultraviolet light from within the tube is absorbed by the phosphor, which then re-radiates the energy by emitting two or three lower-energy light waves. ...
- This uv was emitted by mercury atoms present in the partially-evacuated fluorescent tube. ...
- But once a free electron is liberated from an atom, it rushes toward the end of the bulb that is the more positive one (remember, fluorescent bulbs are electrical devices, so one end of the tube is always more ?positive÷ relative to the other end). ...
3. American Fluorescent Lighting, Residential Lighting, Commercial Lighting, Decorative Lighting
- www.americanfluorescent.com
- Residential / Light Commercial Fluorescent Lighting.
- American Fluorescent has been an industry leader in fluorescent lighting for over 65 years. ... From beautiful decorative styles for your kitchen, hallway and bath, to rugged, dependable everyday utility lighting, American Fluorescent is able to deliver the reliability and satisfaction you need. ...
4. Fluorescent Minerals
- www.emporia.edu
- Fluorescent Minerals.
- The museum has a display of fluorescent minerals that can be viewed under both normal lighting conditions and with ultraviolet light. ...
5. Compact Fluorescent Lights FAQ
- www.ci.tacoma.wa.us
- Compact Fluorescent Lights.
- Why do compact fluorescent lights cost more than incandescent bulbs?.
- The price relates to the costs of developing the new compact fluorescent technology Recently the price of high-quality compact fluorescent lights has decreased. ...
- Will compact fluorescent lights really help me save energy and money on my electric bill?.
- A 20-watt compact fluorescent light provides the same amount of light as a 75-watt incandescent bulb.
- You will need only one compact fluorescent light bulb which costs an average of $10, but you will need about 10 incandescent bulbs since incandescent bulbs only last about 1,000 hours each. The incandescent bulbs may only cost you about $5 but the electricity cost to run it will cost about $45 versus only $12 to run a compact fluorescent light bulb.
- Bulbs plus electricity cost about $22 when using compact fluorescent lights and $50 when you use standard incandescent bulbs. Using a compact fluorescent light could save you $28 (based on Tacoma Power rates).
- Why aren't compact fluorescent lights as small as regular incandescent bulbs?.
- A compact fluorescent light includes a lamp and a ballast or transformer. ... While compact fluorescent lights have been larger than their incandescent equivalent bulbs, the newest lights are less than one-half inch larger than the equivalent 60-watt incandescent bulb. ... For now it is wise to measure your fixture before you shop for a compact fluorescent light.
- Where should I use my compact fluorescent lights?.
- The best places for compact fluorescent lights are in frequently used fixtures that are on for at least three hours at a time. Fixtures that are difficult to reach also are good places to put compact fluorescent lights.
6. Ken's Fluorescent Minerals
- users.rcn.com
- Ken's Fluorescent Minerals.
- These are pictures of fluorescent minerals photographed under long wave (LW) or short wave (SW) ultraviolet light. ...
- The Collector's Book of Fluorescent Minerals, by Manuel Robbins, 1983, ISBN 0-442-27506-4.
- Ultraviolet Light and Fluorescent Minerals , by Thomas S. ...
- Nature's Hidden Rainbows - Fluorescent Minerals of Franklin, NJ, by Robert Jones, Jr. ...
- The Henkel Glossary of Fluorescent Minerals, Journal of the Fluorescent Mineral Society - Special Issue Vol. ...
- My buddy and I had the time of our lives here! Mary Groves' cooking alone is well worth the price, not to mention admission into famous closed locations of Maine! Relax and enjoy their unique flavor of hospitality! The Fluorescent Mineral Society .
- Jared's Fluorescent Mineral Page .
7. Fluorescent Lights and Mercury
- www.p2pays.org
- FLUORESCENT LIGHTS AND MERCURY.
- Fluorescent lamps and high intensity discharge (HID) lamps are the two most common types of lamps that utilize mercury. Fluorescent lamps provide lighting for most schools, office buildings and stores. ... A typical fluorescent lamp is composed of a phosphor-coated glass tube with electrodes located at either end. ... A four-foot fluorescent lamp has an average rated life of at least 20,000 hours. ...
- Fluorescent Lamp Recycling.
- Listed below are fact sheets, Web sites, brochures and articles on fluorescent lamps. ...
- General Information on Fluorescent Lamps.
- Full Title: Fluorescent & High-Intensity Discharge (HID) Lamps: Which Lamps Contain Mercury?.
- Abstract: This Web site gives an insight to what fluorescent lights and HIDs can do, but also stresses that management of both is important. This Web site not only offers suggestions on fluorescent lights, but also on other devices that may contain mercury.
- Full Title: Mercury in Fluorescent Lamps.
- Abstract: This Web site covers a very brief synopsis of mercury in fluorescent lamps. It explains why mercury is toxic, what to do with used fluorescent lamps, and links to some of the recycling services of fluorescent lamps in the New England area.
- Regulations Affecting Fluorescent Lamps.
- Abstract: A summary of the procedural guidelines for the TCLP extraction of fluorescent lamps is presented in a short, easy-to-understand format. The guidelines were intended to supplement the TCLP by supplying specific instructions on the application of this method to fluorescent lamps.
8. Air & Waste Management - Fact Sheet - Fluorescent Lamps
- www.dnrec.state.de.us
- Recently there has been concern about the disposal of mercury containing fluorescent lamps. This fact sheet provides answers to commonly asked questions regarding the management of waste fluorescent lamps that exceed the regulatory limit for mercury via the Toxicity Characteristic Leaching Procedure. The following is a list of commonly asked questions regarding the management of spent fluorescent lamps. ...
- Is the disposal of fluorescent lamps regulated in the State of Delaware, and does the State consider spent lamps hazardous? .
- According to a letter from Sylvia Lawrence dated December 7, 1992, then Director of Solid Waste for the United States Environmental Protection Agency, waste fluorescent lamps often exceed the regulatory limit for mercury via the Toxicity Characteristic Leaching Procedure (TCLP).
- In Delaware, waste fluorescent lamps can be managed in one of three ways; as a solid waste if it is demonstrated the spent fluorescent lamps do not exceed the TCLP regulatory limit (0. ...
- Since all fluorescent lamps contain some level of mercury, the preferred management is proper recycling. Non-hazardous waste fluorescent lamps may not be disposed of in a Delaware solid waste landfill, with the exception of the municipal solid waste landfills operated by the Delaware Solid Waste Authority (DSWA). ...
- Generators managing waste under the UWR have the ability to accumulate quantities of hazardous waste fluorescent lamps for longer periods of time. For example, a small quantity generator of hazardous waste cannot generate greater than 2,200 pounds (1,000 kg) of hazardous waste fluorescent lamps in a calendar month and may only accumulate lamps for 180 days. However, a small quantity universal waste handler may accumulate less than 11,000 pounds (5,000 kg) of fluorescent lamps for a period of one year. ...
- If you desire to manage your waste fluorescent lamps under the UWR, the crushing of lamps is prohibited.
- Does Delaware currently allow generators or contractors to store hazardous waste fluorescent lamps? .
- If the waste fluorescent lamps are being managed as a hazardous waste, the generator must comply with the accumulation time frames specified in the DRGHW for the generator category in which they fall. For example, small quantity generators of hazardous waste may accumulate hazardous waste fluorescent lamps for a period of 180 days, provided they comply with the applicable provisions for small quantity hazardous waste generators set forth in §262. ... As an alternative, the spent fluorescent lamps can be managed under the UWR, which allows generators to store larger quantities of spent lamps for longer periods of time.
9. The Molecular Structure of Green Fluorescent Protein
- www-bioc.rice.edu
- The Molecular Structure of Green Fluorescent Protein.
- The crystal structure of recombinant wild-type green fluorescent protein (GFP) has been solved to a resolution of 1. ...
- Green fluorescent protein, GFP, is a spontaneously fluorescent protein isolated from coelenterates, such as the Pacific jellyfish, Aequoria victoria1. Its role is to transduce, by energy transfer, the blue chemiluminescence of another protein, aequorin, into green fluorescent light2. ... Fluorescent GFP has been expressed in bacteria4, yeast5, slime mold6, plants7, 8, drosophila9, zebrafish10, and in mammalian cells11, 12. ...
- Green fluorescent protein is comprised of 238 amino acids. ...
- All non-fluorescent mutants also failed to exhibit absorption spectra characteristic of the intact fluorophore, implying a possible defect in post-translational processing. Screens of random and directed point mutations for changes in fluorescent behavior have uncovered a number of informative amino acid substitutions. ...
- Furthermore, the development of fluorescent proteins with additional emission and excitation characteristics would dramatically expand their biological applications. ... victoria green fluorescent protein.
- By virtue of their varied fluorophore environments and hence altered spectra, these mutants should lead to expanded uses of green fluorescent protein as gene markers, cell lineage markers, and encourage other uses in biotechnology.
- The N- and C-termini truncation studies27 and the fluorescent fusion products6, 13, 14 are now understandable, given the structure of the protein. ...
- The structure determination of the dithionite-reduced, non-fluorescent species has not yet been studied, but should provide additional data on the nature of the fluorophore. ...
- Green fluorescent protein was purified from E. coli strain BL21(DE3)pLysS (Novagen) containing plasmid pTu58, bearing the wild-type Aequorea victoria green fluorescent protein4. ...
- Crystals grew as green fluorescent square bipyramids up to 0. ...
10. Businesses in Alabama are increasingly using fluorescent lighting ...
- www.adem.state.al.us
- œ 8 j ì j Z œ œ œ œ _ Z £ r ø T Ô ì Z j @ À B K ¿ v L USED FLUORESCENT AND HIGH-INTENSITY DISCHARGE LAMPS Businesses in Alabama are increasingly using fluorescent lighting because it is energy efficient and saves money on electricity bills. The use of fluorescent lighting in homes and businesses, instead of incandescent lighting, results in decreases in power plant emissions of a variety of air pollutants such as mercury, lead, nitrogen oxide, and sulfur dioxide. However, used fluorescent and high-intensity discharge (HID) lamps have recently been identified as an environmental concern. ... Fluorescent and HID lamps contain small amounts of mercury, lead, and sometimes cadmium. Several million fluorescent and HID lamps are discarded in Alabama each year. ... Sources of mercury in the environment from human activity include coal-burning power plants, batteries, and fluorescent and HID lamps. ... Small amounts of mercury are a necessary component in fluorescent and HID lamps, but when a lamp is broken, crushed, or disposed in a landfill or incinerator, mercury may be released to the air, surface water, or groundwater. Considering this, it is a good policy to keep the mercury in fluorescent and HID lamps out of the solid waste stream by recycling when possible. ... In many cases, fluorescent and HID lamps that are tested using the TCLP are determined to be a hazardous waste. Are fluorescent and HID lighting still good environmental and economic choices? The decision to use energy-efficient lighting by a business is a great step toward protecting the environment and it saves money. ... How should I store lamps while awaiting shipment off-site? Companies currently storing used fluorescent and HID lamps for recycling have found that the following practices work well.
11. MA DEP Household Hazardous Products - Fluorescent Lamps
- www.state.ma.us
12. Fluorsecent dye spectra
- www.mcb.arizona.edu
- Spectral traces for fluorescent dyes used in confocal/epifluorescence microscopy.
- The interactive pages below allow you to select any combination of fluorescent tags to examine their excitation or emission properties. Use this site to understand the differences or similarities between various available fluorescent probes. ...
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