Showing posts with label recycle. Show all posts
Showing posts with label recycle. Show all posts

Wednesday, January 23, 2013

One Broken Bulb: The Health and Safety Risks

One broken four-foot fluorescent lamp in a small room or vehicle can release enough mercury vapor to exceed the OSHA mercury exposure eight-hour limit—posing significant health and safety risks to handlers and consumers. Plus, mercury vapor can be emitted for weeks after a single bulb is broken, continually polluting the air in consumers’ homes. When carelessly handled or improperly disposed of, mercury can get into drinking water, lakes, rivers and streams, posing a critical threat to human health, as well as the environment. Recent studies have linked mercury exposure to increased risk of heart attack in men, to mental retardation and neurological disorders in children, and dangerous levels of mercury in the blood of women of childbearing age.

Despite these health concerns, the EPA estimates that approximately 75 to 80 percent of fluorescent lamps are not recycled and are usually placed in dumpsters or trash containers, presenting a considerable risk. One study found that mercury is "strongly and persistently" emitted from dumpsters that contain broken fluorescent lamps.(1) Broken fluorescent lamps need to be properly recycled to prevent the release of mercury vapor. Learn how to clean up a broken bulb or how to safely package and recycle fluorescent lamps by reading our Layers of protection: Packaging used fluorescent lamps post.

1. Lindberg, S.E.; Owens, J. PaMSWaD (Pathways of Mercury in Solid Waste Disposal); Lockheed Martin Energy Research Corporation (LMER). 1999. 6.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, December 19, 2012

How Do Incandescent Lights Result in More Mercury Pollution Than Fluorescents?

In addition to carefully recycling products that contain mercury, we can reduce mercury pollution by reducing our energy consumption. Because mercury is a byproduct of burning coal, coal-fired power plants are one of the largest sources of mercury pollution. Because incandescent bulbs use several times more electricity over their lifetimes, they require far more power generation and, ultimately, result in more mercury emission than fluorescents. With the coming “maximal achievable technology” clean air standards, it is fully expected that mercury emissions will have to be severely reduced in order to stop this proliferation. Fluorescent lights are four to six times more efficient than incandescent lamps, significantly reducing the power demand from local utilities. The reduced demand for electricity in turn reduces both greenhouse gas and mercury emissions.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, June 22, 2011

The Life of a Recycled Lamp

Once a lamp has been recycled, it is usually sent to a recycling facility via truck, UPS or FedEx® in bulk or in pre-paid shipping recycling boxes. These boxes should be specifically designed to accommodate various sized lamps and effectively contain mercury vapor emitted from broken lamps.

Once received, the recycler crushes the lamps, along with other contaminated products, devices and debris, to safely exhaust the mercury vapor and extract and reuse the resultant mercury—ensuring mercury is not released into the environment. The remaining debris is then placed in 55-gallon drums and sent to a retort facility—where the drums are heated to high temperatures to eliminate any remaining mercury. Any remaining glass and aluminum is furthered recycled and reused.

This process reduces the potential dangers of mercury vapor emitted from used fluorescent lamps—effectively reducing environmental liability and protecting both handlers and consumers from potential safety hazards and health risks.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, February 23, 2011

EPA Packaging Regulations

Shipping, packaging, and handling of fluorescent lamps is a major concern because of the harmful mercury vapor emitted when the lamps are broken, which commonly occurs during shipment. To lessen the health and environmental risks associated with mercury vapor, national laws--sometimes supplemented by more rigorous state laws--exist to encourage proper recycling of fluorescent lamps. EPA encourages recycling of these lamps by allowing common carrier shipment to recycling facilities. To protect people who handle fluorescent lamps, EPA instructs that packaging should be designed to protect against breakage. While the rules mandate that lamps be packaged in structurally sound packages, the federal laws don't explicitly address mercury vapor release.

Read more about State Universal Waste Regulations and Federal Universal Waste Regulations

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, February 9, 2011

Waste Management Curbside Compact Fluorescent Lamp (CFL) Recycling Program Allows Communities to Responsibly Dispose of Used Fluorescent Bulbs

Waste Management, Inc., North America’s largest residential recycler, recently launched a new recycling program that allows communities to recycle used CFLs in a safe, environmentally responsible manner. The curbside CFL recycling program is currently offered in four communities: Rolling Hills Estates, CA; Melbourne, FL; Palm Bay City, FL; and Brevard County, FL, with future plans to implement the service in communities across the country where Waste Management residential recycling services are provided. Residents will receive a specially designed Mercury VaporLok® container that can safely store up to 12 standard CFLs. When the bag is full, residents can call Waste Management to collect the container through their current curbside pickup service. Waste Management can customize this service based on the needs of each community to ensure the program is intuitive and effective.

This new curbside CFL recycling service compliments Waste Management’s ongoing universal waste recycling programs. WM LampTracker®, a division of Waste Management, also provides total-care solutions for the storage, handling, transport and recycling of fluorescent lamps for small, medium and large-scale businesses across North America.

For those communities that do not have Waste Management residential recycling services, residents can recycle their CFLs through Waste Management’s ThinkGreenFromHome.com, which provides consumers with a convenient option to recycle their household universal waste directly from their home with confidence it will be handled safely and responsibly.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, February 2, 2011

Minimize Safety, Health and Environmental Risks of Used Fluorescent Lamps: Breakage

The fact is, fluorescent lamps are fragile, and along their life cycle from manufacture to disposal—some product will inevitably break. A proven packaging configuration with a zip closure foil-plastic laminate bag is available to effectively contain mercury vapor, allowing safe transportation and storage to recycling facilities and mitigating the danger of mercury vapor exposure. However, if a lamp is broken outside of these containers—during handling and maintenance for instance—the proper steps should be taken to minimize exposure.

The EPA provides guidelines for cleaning up a broken fluorescent light, including a CFL or fluorescent bulb. First, the facility’s maintenance personnel should empty the room of people and pets, airing the area out for 15 minutes or more. The glass fragments should then be carefully picked up (with stiff paper or cardboard) and placed in a glass jar with a metal lid. Remaining fragments should be removed by the use of sticky tape, but a vacuum and/or broom should not be used. For additional information and a more complete clean-up guide, visit the EPA’s website.

Read our previous posts in this series on how to handle, store, transport and recycle used fluorescent lamps.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, January 26, 2011

Minimize Safety, Health and Environmental Risks of Used Fluorescent Lamps: Recycling

Despite the safety, health and environmental hazards of used fluorescent lamps, the Environmental Protection Agency (EPA) estimates recycling rates at only 20 to 25 percent. According to one study, mercury air emissions could be lowered by 30 percent if recycling rates are increased to 50 percent and improvements in handling are made to lower losses from breakage. (1) Consumers can choose to recycle used lamps in several different ways. Lamps can be sent to a recycling facility via truck, UPS or FedEx® in bulk or through pre-paid shipping recycling box programs—which provide simple online ordering, tracking and compliance documentation for the proper management of mercury-containing items and other types of Universal Waste.

Once received, the recycler may crush the lamps, along with other contaminated products, devices and debris, to safely exhaust the mercury vapor and extract and reuse the resultant mercury—ensuring mercury is not released into the environment. This process minimizes the potential dangers of mercury vapor emitted from used fluorescent lamps—effectively reducing environmental liability and protecting both handlers and consumers from potential safety hazards and health risks.

Read our previous posts in this series on how to handle, store and transport used fluorescent lamps, and find out next week what do if the bulb breaks.

Reference:
1. 3. Cain, A.; Disch, S.; Twaroski, C.; Reindl, J.; Case, C.R. Substance Flow
Analysis of Mercury Intentionally Used in Products in the United States; J. Ind. Ecol. 2007, 11, 61-75.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, January 19, 2011

Minimize Safety, Health and Environmental Risks of Used Fluorescent Lamps: Transport

Fluorescent lamps release an estimated one ton of mercury into the air each year in the US alone, and transportation of used lamps may be a significant source of emissions. According to estimates derived from modeling, four percent of mercury air emissions from all products were from fluorescent lamps in 2005—with higher mercury emissions taking place during waste lamp transport than during disposal processes. (1) Measurements of mercury emissions from dumpsters and from transfer station activities support the evidence that transportation of used lamps results in significant mercury vapor emissions. (2)

According to these findings, many used lamps are broken en route to recycling facilities, negating environmental efforts before the lamps even arrive at their final destination. To prevent the release of mercury vapor during the often-rough treks to recycling facilities, lamps should also be transported in packages proven to contain mercury vapor.

Read our previous posts in this series on how to handle and store used fluorescent lamps, and find out next week how to recycle them.

References
1. Cain, A.; Disch, S.; Twaroski, C.; Reindl, J.; Case, C.R. Substance Flow
Analysis of Mercury Intentionally Used in Products in the United States; J. Ind. Ecol. 2007, 11, 61-75.
2. Price, J.; Reinhart, D.; Sfeir, H. Airborne Emissions of Mercury from Municipal Solid Waste. II: Potential Losses of Airborne Mercury before Landfill; J. Air & Waste Manage. Assoc. 2005, 55, 870-877.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, January 12, 2011

Minimize Safety, Health and Environmental Risks of Used Fluorescent Lamps: Storage

One broken 48-inch fluorescent lamp in a small room or vehicle can release enough mercury vapor to exceed the Federal Occupational Health and Safety Administration (OSHA) permissible exposure limit (PEL). This means that mercury vapor concentrations could exceed occupational exposure levels when working with or near broken bulbs, especially when multiple bulbs are stored or shipped in bulk to recycling facilities.

Often, maintenance workers at small to large facilities store used lamps for a period of time until numerous lamps are collected for transportation to recycling facilities. Stored lamps may be bumped around and broken, so maintenance workers should package used lamps in a configuration proven to contain mercury vapor emissions. A recent study from the University of Minnesota indicates that three layers of packaging are necessary to provide sufficient containment of mercury vapor. An outer cardboard layer provides structure to the configuration and protects contents from outside elements. A bag positioned between two cardboard layers should feature a suitable material and tight seal—such as a unique zip closure foil-plastic laminate bag—to contain the mercury vapor. Finally, an inner layer of cardboard prevents broken glass from piercing the bag.

Read our previous post on how to handle used fluorescent lamps, and find out next week how to safely transport them.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, December 22, 2010

Lighting the Workplace with Fluorescent Bulbs

Many businesses strive to keep management expenses low, ensure energy efficiency and provide a safe work environment for employees. When it comes to selecting lighting, all of these aspects must be factored in. Fluorescent lamps have long been the best lighting option for small to large businesses, due to their significant energy savings—providing four to six times higher efficiency than incandescent lights—and long working life. However, these lamps contain hazardous mercury and, from installation to disposal, they must be carefully handled, stored and transported.

While the amount of mercury used in an individual fluorescent bulb has decreased over the past years, one broken four-foot fluorescent lamp in a small room or vehicle can release enough mercury vapor to exceed the OSHA mercury exposure eight-hour limit—posing a significant occupational health risk. Plus, mercury vapor can be emitted for weeks after a single bulb is broken. In their lifetime, fragile fluorescent lamps are handled by manufacturers, transporters, distributors, retailers, consumers and installers, as well as recycling or waste handlers. Although the lamps could break anywhere down this line and expose workers and the environment to hazardous mercury vapors, there are no universally enforced packaging standards designed to protect these people. Recent legislation has begun to address the issue of safe packaging for fluorescent lamps and other mercury-containing products, and businesses must work to not only comply with these regulations, but also ensure the safety of all personnel in addition to protecting the environment.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, December 8, 2010

Why is it Important to Recycle Used Fluorescent Lamps?

According to EPA estimates, only 20% to 25% of used fluorescent lamps are recycled, These lamps are commonly sent to a recycler in bulk or in pre-paid shipping recycling boxes. The 75% to 80% of fluorescent lamps that are not recycled usually end up in dumpsters or trash containers and, ultimately, in landfills. One study indicates dumpsters that contain broken fluorescent lamps “strongly and persistently” emit mercury.(1) Another study on mercury release from broken fluorescent lamps found that between 17% to 40% of the mercury in broken low-mercury fluorescent lamps is released to the air during the two-week period after breakage.(2) Of this mercury, one-third of the release takes place during the first eight hours following breakage, potentially exposing personnel in the vicinity to unsafe levels of mercury vapor. Using this estimated release rate and an estimated 620 million lamps discarded annually in the United States, broken used fluorescent lamps release approximately two to four tons of mercury each year into the environment.

Used fluorescent lamps need to be properly handled during shipping and recycling. Safe packaging reduces the threat of mercury vapor emitted from broken lamps.

REFERENCES
1. Lindberg, S.E.; Owens, J. PaMSWaD (Pathways of Mercury in Solid Waste Disposal); Lockheed Martin Energy Research Corporation (LMER). 1999, 6.
2. Aucott, Michael, Michael McLinden and Michael Winka. “Release of Mercury from Broken Fluorescent Bulbs.” Journal of the Air & Waste Management Association, 53 (2003), 143-51.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Thursday, November 18, 2010

One Broken Bulb: The Health and Safety Risks

One broken four-foot fluorescent lamp in a small room or vehicle can release enough mercury vapor to exceed the OSHA mercury exposure eight-hour limit—posing significant health and safety risks to handlers and consumers. Plus, mercury vapor can be emitted for weeks after a single bulb is broken, continually polluting the air in consumers’ homes. When carelessly handled or improperly disposed of, mercury can get into drinking water, lakes, rivers and streams, posing a critical threat to human health, as well as the environment. Recent studies have linked mercury exposure to increased risk of heart attack in men, to mental retardation and neurological disorders in children, and dangerous levels of mercury in the blood of women of childbearing age.

Despite these health concerns, the EPA estimates that approximately 75 to 80 percent of fluorescent lamps are not recycled and are usually placed in dumpsters or trash containers, presenting a considerable risk. One study found that mercury is "strongly and persistently" emitted from dumpsters that contain broken fluorescent lamps.(1) Broken fluorescent lamps need to be properly recycled to prevent the release of mercury vapor. Learn how to clean up a broken bulb or how to safely package and recycle fluorescent lamps by reading our Layers of protection: Packaging used fluorescent lamps post.

1. Lindberg, S.E.; Owens, J. PaMSWaD (Pathways of Mercury in Solid Waste Disposal); Lockheed Martin Energy Research Corporation (LMER). 1999. 6.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Thursday, November 11, 2010

Which Packaging Configuration Effectively Contains Mercury Vapor?

To avoid both health and environmental risks associated with mercury vapor emissions from broken fluorescent lamps, they should be packaged, stored and transported to recycling facilities in a configuration that is specifically designed to contain mercury vapor—and proven to be effective.

The University of Minnesota study measured the performance of three different categories of packaging configurations that are used to store and transport used fluorescent lamps: single layer cardboard boxes, single layer cardboard boxes with a plastic bag, and double-layer cardboard boxes with a bag between the two layers. In ten replicate experiments, each box was filled with 40 used low-mercury T4 fluorescent lamps, dropped and shaken in a test chamber until the lamps were broken. During the next six hours, the level of mercury vapor inside the test chamber was measured and recorded. (1)

1. Single Layer Cardboard Box: Similar to the package in which fluorescent lamps are usually sold in, this packaging configuration was the least effective. It resulted in airborne mercury vapor levels in the test chamber exceeding all workplace exposure levels, as defined by state and federal authorities.
2. Single Layer Cardboard Box with a Plastic Bag: This contained the mercury better than the first box, but still emitted some mercury vapor.
3. Double-Layer Cardboard Boxes with a Bag Between the Two Layers: Out of all of the configurations, only this package design kept mercury vapor levels in the test chamber below all workplace exposure regulations and guidelines.

REFERENCES
1. Glenz, Tracy T., Lisa M. Brosseau, and Richard W. Hoffbeck. "Preventing Mercury Vapor Release from Broken Fluorescent Lamps during Shipping." Journal of the Air & Waste Management Association 59 (2009): 266-72. Print.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, October 20, 2010

Earthmate Compact Fluorescent Lights

Waste Management now offers Earthmate compact fluorescent lightbulbs (CFLs) in recyclable packaging that also doubles as a CFL recycling kit. This new product includes Earthmate CFLs packaged in a resealable box lined with the VaporLok™ Products, LLC technology , which is designed to reduce the risk of airborne mercury exposure and environmental contamination from lamps broken during storage and shipping. The box is suitable for storing used CFLs and is approved for shipping by the United States Postal Service. Consumers return their used CFLs in the included postage paid shipping container to the Waste Management lamp recycling center simply by mailing them from home or any of over 34,000 US Post Offices. Learn more here.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, September 22, 2010

CFL Recycling Information Supplied by Manufacturers: Philips, TESCO and GE

Although consumer awareness of the health and safety risks associated with mercury vapor emitted from broken CFLs has increased, the Environmental Protection Agency (EPA) estimates recycling rates of possibly less than two percent. If not properly recycled, the emitted mercury vapor poses a significant threat to not only the health of consumers, but also to the health of our environment. Mercury-containing products, such as CFLs, need to be properly recycled to truly be considered truly green products. Yet according to a study conducted by Toxic Waste Facts (1), only one of the three top light bulb manufacturers displays significant recycling information on their packaging:

Philips: The packaging of a CFL from Philips contains no specific information on disposal or risks associated with mercury contained in the bulbs. The information on the packaging details the life expectancy, wattage, a recycling symbol and an A rating.

TESCO: The packaging of a CFL from TESCO includes handling and fitting safety instructions, as well as a list of states that ban CFL household waste disposal, with more information available in store or via the website recycle-more.co.uk. Packages also contain the A rating and the crossed-out wheeled bin symbol. However, they do not offer any instructions regarding breakage clean-up or health risks.

General Electric: The packaging of a CFL from General Electric contains no information on disposal, recycling or any risks associated with the bulb. The information on the packaging details the life expectancy, wattage and an A rating.

It is important that consumers are made aware of the risks associated with broken CFLs and other mercury-containing products, and manufacturers should change packaging to better detail risks, usage and disposal methods.

1. An Assessment of Benefits and Potential Health and Environmental Hazards from Compact Fluorescent Lights. Toxic Waste Facts; available at http://toxicwastefacts.com/toxicwaste/an-assessment-of-benefits-and-potential-health-and-environmental-hazards-from-compact-fluorescent-lights

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, September 8, 2010

How Do Incandescent Lights Result in More Mercury Pollution Than Fluorescents?

In addition to carefully recycling products that contain mercury, we can reduce mercury pollution by reducing our energy consumption. Because mercury is a byproduct of burning coal, coal-fired power plants are one of the largest sources of mercury pollution. Because incandescent bulbs use several times more electricity over their lifetimes, they require far more power generation and, ultimately, result in more mercury emission than fluorescents. With the coming “maximal achievable technology” clean air standards, it is fully expected that mercury emissions will have to be severely reduced in order to stop this proliferation. Fluorescent lights are four to six times more efficient than incandescent lamps, significantly reducing the power demand from local utilities. The reduced demand for electricity in turn reduces both greenhouse gas and mercury emissions.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Thursday, September 2, 2010

Part II: Analyzing the Environmental Impact of Different Waste Management Methods: Incineration and Crushing

Incineration is a waste treatment technology that involves the combustion of organic materials or substances.(1) Also known as "thermal treatment", incineration of waste materials converts the waste into incinerator bottom ash, flue gases, particulates and heat. In the past, many municipal waste combustors did not have special controls to reduce mercury emissions. The incineration of mercury-containing lamps, therefore, released up to 90% of the mercury to the air.(2) By the end of 2000, most incinerators were equipped with more stringent EPA-mandated mercury controls, dramatically reducing the amount of mercury that incinerators release from any mercury-containing product. According to the EPA, mercury emissions from municipal solid waste combustors declined from 42 tons of mercury in 1990 to 2 tons in 2001.(3) However, this amount of mercury release can be further reduced by recycling used fluorescent lamps.

Crushing lamps prior to transportation reduces the volume of waste, while utilizing mercury filters and other technology to limit mercury emissions. Crushing can significantly reduce transportation and storage costs for generators. However, the efficacy of lamp crushers is debated, and the practice has been banned by many state pollution control agencies.

Other recycling options, such as the services offered by Mercury Waste Solutions, should be applied to mercury-containing lamps to safely and effectively remove the mercury vapor. Their patented continuous flow retort oven has been designed to process up to 1,000 lbs per hour of flowable mercury-contaminated powders and other solids—effectively recovering mercury from contaminated products and reducing mercury pollution.

1. Knox, Andrew (February 2005). "An Overview of Incineration and EFW Technology as Applied to the Management of Municipal Solid Waste (MSW)" (PDF). University of Western Ontario.
2. “Lamp Industry Product Stewardship: A Record of Accomplishment,” NEMA Lamp Section, October 2004.
3. “Emissions from Large MWC Units at MACT Compliance,” Memorandum from Walt Stevenson, Combustion Group, UAQPS, EPA, June 20, 2002

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, August 25, 2010

Part I: Analyzing the Environmental Impact of Different Waste Management Methods: Recycling Vs. Landfills

Recycling mercury-containing lights, such as fluorescent lamps and CFLs, provides many health, safety and environmental advantages. The main advantage of recycling used energy-efficient lights is in preventing mercury from entering the solid waste steam—where a portion of it is likely to be released into the environment. Another advantage is from the reuse of certain raw materials from mercury-containing lamps, including the mercury itself. Although the initial cost for recycling is higher than disposal to landfills, the cost is typically less than 1% of the electric savings allotted from the reduced energy use fluorescent lamps provide over traditional incandescent lights.(1)

Many consumers dispose of used fluorescent lamps in dumpsters, which eventually end up in landfills, where they may emit hazardous mercury vapor into the environment. A study of exposure to broken low-mercury lamps by the New Jersey Department of Environmental Protection entitled, "Release of Mercury from Broken Fluorescent Bulbs" demonstrated that "elevated airborne levels of mercury could exist in the vicinity of recently broken lamps, and "could exceed occupational exposure limits."(2) Collectively, the total amount of mercury released from lamp breakage adds to the overall mercury pollution in the United States, increasing health and safety hazards for consumers and waste handlers. Increased lamp recycling is recommended to further reduce mercury pollution.

1. “Fluorescent and other Mercury-Containing Lamps and the Environment,” NEMA, March 2005.
2. Aucott, Michael, Michael McLinden, and Michael Winka, 2003, Release of Mercury from Broken Fluorescent Bulbs, Journal of the Air & Waste Management Association 53:143-151.

Brad Buscher
Chairman and CEO
VaporLok Products LLC

Wednesday, August 18, 2010

What is the Lighting Industry Doing to Reduce Mercury Use?

The lighting industry has slowly reduced the amount of mercury used in fluorescent lamps over the past 20 years and, according to NEMA surveys, mercury use has been reduced dramatically over the last 7 years.(1) Since 1990, NEMA has conducted a number of surveys, which indicate the total amount of mercury contained in all lamps in the U.S. declined to 17 tons in 1994, 13 tons in 1999, 9 tons in 2001 and 7 tons in 2003—nearly a 90% reduction from previous years.(2) According to this trend, researchers believe this number will continue to decline in future years.

The lighting industry accomplished these dramatic reductions by collectively investing millions of dollars in new lamp manufacturing equipment and processes. However, fluorescent lamps must still be handled, stored and transported to recycling facilities with care. To ensure the safety of people who handle these lamps and the environment, there is a need for better regulations for packaging that controls the release of mercury vapor emitted from broken lamps.

1.“Fluorescent and other Mercury-Containing Lamps and the Environment,” NEMA, March 2005.
2.“Lamp Industry Product Stewardship: A Record of Accomplishment,” NEMA Lamp Section, October 2004.

Lisa Brosseau, ScD, CIH
Associate Professor
University of Minnesota School of Public Health, Division of Environmental Health Sciences

Wednesday, August 11, 2010

Why Do Fluorescent Lamps Need Mercury?

Mercury is an essential component of energy-efficient fluorescent lamps, allowing them to produce light and provide a longer life in comparison to incandescent bulbs. A typical fluorescent lamp is composed of a phosphor coated glass tube with electrodes located at either end. The tube contains mercury, of which only a very small amount is in vapor form. When a voltage is applied, the electrodes energize the mercury vapor, causing it to emit ultraviolet (UV) energy. The phosphor coating absorbs the UV energy, causing the phosphor to fluoresce and emit visible light.(1)

The amount of mercury required is very small, typically measured in milligrams, and varies by lamp type, year of manufacture, manufacturing plant and manufacturer. Although it is a necessary component, mercury from fluorescent lamps still poses significant health and environmental issues, and lamps should be properly stored, transported and recycled in a packaging configuration proven to effectively contain mercury vapor.

1. “Fluorescent and other Mercury-Containing Lamps and the Environment,” NEMA, March 2005.

Brad Buscher
Chairman and CEO
VaporLok Products LLC