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Frequently Asked Questions

Where can I get additional information about the potential health effects of landfill gas?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Landfill Gas Primer: An Overview for Environmental Health Professionals. U.S. Department of Health and Human Services, Agency for Toxic Substances and Disease Registry. November 2001. This primer was designed to provide environ­mental health professionals with a general understanding of landfill gases and to help them respond to community concerns that may be related to landfill gas issues. It provides basic information about the composition, formation, and movement of landfill gas.
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What are the public health, safety, and environmental concerns associated with landfill gas?

Environmental Protection Agency - LMOP: Frequently Asked Que...
The public health, safety, and environmental concerns fall into three categories: subsurface migration, surface emissions/air pollution, and odor nuisance. Subsurface migration is the underground movement of landfill gas from landfills to other areas within the landfill property or outside the landfill property. (Note: Most subsurface migration occurs at older, unlined landfills because there is minimal barrier for lateral migration.
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WHERE CAN I OBTAIN MORE INFORMATION ON POTENTIAL HEALTH EFFECTS OF RADIOFREQUENCY ENERGY?

OET -- RF Safety FAQ's
Although relatively few offices or agencies within the Federal Government routinely deal with the issue of human exposure to RF fields, it is possible to obtain information and assistance on certain topics from the following federal agencies. Most of these agencies also have Internet Web sites.
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How is landfill gas generated?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Landfill gas is generated during the natural process of bacterial decomposition of organic material contained in MSW landfills. A number of factors influence the quantity of gas that a MSW landfill generates and the components of that gas. These factors include, but are not limited to, the types and age of the waste buried in the landfill, the quantity and types of organic compounds in the waste, and the moisture content and temperature of the waste.
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What components make up landfill gas?

Environmental Protection Agency - LMOP: Frequently Asked Que...
By volume, landfill gas is about 50 percent methane and 50 percent carbon dioxide and water vapor. It also contains small amounts of nitrogen, oxygen, and hydrogen, less than 1 percent NMOC, and trace amounts of inorganic compounds. Some of these compounds have strong, pungent odors (for example, hydrogen sulfide, or H2S). Nonmethane organic compounds consist of certain HAP and VOC, which can react with sunlight to form ground-level ozone (smog) if uncontrolled.
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Are there any potential side effects?

Eureka Pain Relief Clinic - FAQ
There are no side effects associated with Eureka treatments. After treatments, patients may experience a feeling similar to achiness after a workout, which is a part of the body's healing process.
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Where can I get additional information about national greenhouse gas emissions?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2004. U.S. EPA, Office of Atmospheric Programs. EPA/430/R-06-002. April 15, 2006. This report presents estimates by the United States government of U.S. human-related greenhouse gas emissions and sinks for the years 1990 through 2004. The information provided in this inventory is presented in accordance with the Revised 1996 Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories.
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How do landfill gas energy projects reduce greenhouse gas emissions?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Landfill gas recovery projects provide a highly effective means of reducing overall greenhouse gas emissions from landfills, whether the landfill gas is combusted by flare, electricity generation equipment, or another end use system. By using the otherwise wasted methane contained in the collected landfill gas to generate electricity or directly as a fuel, fossil fuels such as oil and coal are displaced.
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How are nonmethane organic compounds generated in landfill gas?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Nonmethane organic compounds are contained in discarded items such as household cleaning products, materials coated with or containing paints and adhesives, and other items. During the waste decomposition process, NMOC can be stripped from the waste by methane, carbon dioxide, and other gases and carried in landfill gas.
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Can landfill gas combustion be used as an energy resource?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Landfill gas can be an asset when it is used as a source of energy to create electricity or heat. It is classified as a medium-Btu gas with a heating value of 350 to 600 Btu per cubic foot, approximately one-half that of natural gas. Landfill gas can often be used in place of conventional fossil fuels in certain applications. It is a reliable source of energy because it is generated 24 hours a day, 7 days a week.
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What are dioxins and furans and are they released from landfill gas combustion?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Dioxins and furans are a group of toxic chemical compounds, known as persistent organic pollutants, that share certain similar chemical structures and biological characteristics. Dioxins/furans are released into the air as byproducts of many combustion processes, such as incinerating municipal waste, burning fuels (e.g., wood, coal, or oil), and some industrial processes such as the bleaching of pulp and paper.
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What is landfill gas?

Turnkey Recycling and Environmental Enterprises - Community ...
Landfill gas is created by the decomposition of waste and is approximately 50% methane, 50% carbon dioxide with trace amounts of a variety of other compounds. Methane is a reliable and renewable fuel source that can be collected and used in a variety of applications such as producing electricity. For more information on landfill gas visit the U.S. Environmental Protection Agency Landfill Methane Outreach Program (LMOP) at www.epa.gov
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EBI Group :: Your Ally in Integrated Waste Management
Landfill gasis generated when biological material is degraded in the absence of oxygen (also called methane fermentation). Landfill gas is combustible and is mainly composed of methane (CH4) and carbon dioxide (CO2). Biogas is a renewable form of energy that can be transformed into useful energy (heat, electricity, fuel) and can help, in the end, reduce greenhouse gas emissions.
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Are There Other Effects on Health?

Reference Article : Commonly Asked Questions: Anorexia Nervo...
Yes, the malnourishment and purging associated with Anorexia often cause other significant health problems. People with Anorexia are often diagnosed with anemia, cardiovascular (heart and blood circulation) problems such as hypotension (low blood pressure) and irregular heart beat (arrhythmia), tooth decay from repeated vomiting, poor kidney functioning, and osteoporosis (a decrease in the size and strength of bone).
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How does landfill gas combustion affect mercury emissions?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Approximately 60 percent of all municipal solid waste (MSW) generated in the United States is currently being disposed of in roughly 1,800 operational MSW landfills, as referenced in EPA’s Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2004. Landfills are the largest single human source of methane emissions in the United States, accounting for 25 percent of all methane sources.
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what concentrations are nonmethane organic compounds typically found in uncontrolled landfill gas?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Concentrations of NMOC in uncontrolled landfill gas can vary depending on several factors, including the type of waste discarded in the landfill, the climate surrounding the landfill, and the physical properties of the individual organic compound. A default concentration of 595 parts per million by volume (ppmv) of NMOC is presented in EPA’s Compilation of Air Pollutant Emission Factors (AP-42).
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What are potential health effects of molds?

Information on Air Duct Cleaning and Toxic Mold
All molds have the potential to cause health effects such as allergic reactions of the eyes, nose, and throat, dermatitis, asthma, hypersensitivity pneumonitis, and other immunologic effects. Other reported effects such as fever, flu-like symptoms, fatigue, respiratory dysfunction, excessive and regular nose bleeds, dizziness, headaches, diarrhea, vomiting, and liver damage are symptoms of an individual who has been exposed to mold via inhalation.
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Are there any potential side effects to taking YAZ?

Prevent pregnancy with Yaz birth control, the only 24-day pi...
Women taking combination birth control pills, such as YAZ, may experience side effects that include nausea and vomiting, headaches, irregular bleeding, weight gain or loss due to a change in eating habits, and breast tenderness. But if side effects occur, they are generally mild and go away within the first months of use. One side effect of the Pill continues to be an increased risk of cardiovascular disease. This risk is particularly high for women who smoke and are over 35 years of age.
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Are there additional potential health benefits from taking Nutriex Dry Eye?

Nutriex - Frequently Asked Questions - Dry Eyes
Yes. Omega-3 fatty acid intake is important for cardiovascular, skin, and kidney health, as well as for fetal development. There are many benefits to taking Omega-3's , including reduction of inflammation, heart disease, macular degeneration, blood pressure, and some forms of cancer to name a few with no adverse side effects.
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How do landfill gas energy projects reduce emissions of nonmethane organic compounds?

Environmental Protection Agency - LMOP: Frequently Asked Que...
Landfill gas energy projects involve collecting and combusting landfill gas. The process of combustion destroys organic compounds, including methane and NMOC. During combustion, these organic compounds chemically react with oxygen in the presence of heat, breaking apart to form water vapor, carbon dioxide, and other less volatile compounds.
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What causes landfill gas and odors?

Turnkey Recycling and Environmental Enterprises - Community ...
Landfill gas, which is primarily composed of methane gas and carbon dioxide, is a natural by-product of decomposing refuse and is found in all landfills. At times, landfill gas, depending on a number of factors, can be found to be odorous.
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Where can additional information be found?

Frequently Asked Questions — UM University Health Serv...
Information on all aspects of alcohol use and college students, including recommendations for reducing use. Federal resource center website containing prevention/education information for institutes of higher education.
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China FAQ
Probably the single best source of information is Families with Children from China. Their web site is at: http://fwcc.org and has a lot of information about the process and links to many other sites as well.
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NIDCD maintains a directory of organizations that can answer questions and provide printed or electronic information on otosclerosis. Please see the list of organizations at www.nidcd.nih.gov/directory. For more information, additional addresses and phone numbers, or a printed list of organizations, contact: Contact Us || Privacy || Accessibility || Web Site Policies & Important Links || FOIA || Frequently Asked Questions || Free Publications
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Frequently Asked Questions About Being an Astronomer
The American Astronomical Society's 20-page brochure A New Universe to Explore: Careers in Astronomy contains advice and information about preparing for a career in astronomy. For a hardcopy or more information, send an email to education@aas.org. Multiple copies are available for a small charge. The Harvard Smithsonian Center for Astrophysics (CfA) has published an excellent brochure titled "Space for Women" that highlights the careers of a dozen CfA women involved with astronomy.
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What are the potential health effects of mold in buildings and homes?

BasementRx - FAQ on Stachybotrys chartarum and other molds
Mold exposure does not always present a health problem indoors. However some people are sensitive to molds. These people may experience symptoms such as nasal stuffiness, eye irritation, wheezing, or skin irritation when exposed to molds. Some people may have more severe reactions to molds. Severe reactions may occur among workers exposed to large amounts of molds in occupational settings, such as farmers working around moldy hay. Severe reactions may include fever and shortness of breath.
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What are the potential health effects of mold in homes?

Frequently Asked Questions About Mold
The National Center for Disease Control ("CDC") indicates that mold exposure does not always present a health problem. However, some people are sensitive to molds and may experience allergy-type symptoms, such as nasal stuffiness, eye irritation, or wheezing, when exposed to molds. Others have even more severe reactions to molds, such as fever and shortness of breath, especially if exposed to large amounts of molds.
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