breathing RADON in flyash generated by thermal power plants

1. UWM Radon Research Laboratory

   The laboratory contains: several Portable Continuous Radon Gas Monitors, ... U.S. Geologic al Survey Radon Homepage · American Lung Association Fact Sheet ... A Computer Program for Calculating Cancer Risks from Radon ... K. J. Renken and T. Lambert, "The Utilization of Fly Ash and Silica Fume to Reduce Radon Gas ...
   www4.uwm.edu/radon/ - Cached -

2. HAA Glossary

   Fly ash - A by-product of coal burning, fly ash is a fine, .... Radon - Radon is a cancer-causing, radioactive gas. Radon comes from the ... The Surgeon General says radon is the second leading cause of lung cancer in the United States. ...
   homes-across-america.org/HAAGlossary.cfm - Cached -

3. Indoor radon gas: A potential health hazard resulting from ...

   Calcium Gypsum Silicate Slag 175 FlyAsh ByProduct Material Fig. 9. ..... a potential health hazard 123 Radon, its progeny and lung cancer When radon and its ...
   linkinghub.elsevier.com/retrieve/pii/S0306261997000020 -
   by A Lugg - 1997 - Cited by 5 - Related articles

4. Never Smoked, but at Risk for Lung Cancer? - Consults Blog ...

   22 Jun 2009 ... Radon is a cancer-causing natural radioactive gas that you can't see, .....power plants and breathing in micro particles of fly ash 24×7. ...
   consults.blogs.nytimes.com/.../never-smoked-but-at-risk-for-lung-cancer/?... -Cached -

5. Integrated Environmental Management, Inc. - IEM - Radioactivity ...

   Because it is a noble gas, radon is chemically inert and electrically uncharged. ... and other construction materials such as concrete made from fly ash and industrial ... Does a link between radon exposure and lung cancer really exist? ...
   www.iem-inc.com/prrn1.html - Cached - Similar -

6. NRE-VII. Manuscripts received

   OF CALIBRATION FACILITIES FOR RADON GAS ACTIVITY CONCENTRATION .... N203, RADIOENVIRONMENTAL SURVEY OF THE MEGALOPOLIS POWER PLANTS FLY-ASHDEPOSITS ... N243, META-ANALYSIS OF TWENTY RADON AND LUNG CANCER CASE CONTROL STUDIES ...
   arcas.nuclear.ntua.gr/apache2-default/nrevii/man_rec.html - Cached -

7. Radon emanation rates of common partition materials in Hong Kong

   Design/methodology/approach – An initial slope of radon gas growth against time and a mass... atmosphere is at risk from lung cancer (Field et al., 2003; Godish, 1989; Kenneth, 1990).... Stone with fly ash. 3.3. 41. Concrete (Germany) ...
   www.emeraldinsight.com/Insight/ViewContentServlet?.../pdf/... - Similar -
   by KW Mui - 2005 - Related articles - All 3 versions

8. Indian Journals

   A relationship between lung cancer and inhalation of radon and its progeny has been ...electrically uncharged noble but hazardous gas which is radioactive, ... A great deal of fly ash(coal cinder) is also released polluting not only ...
   www.indianjournals.com/ijor.aspx?target=ijor:jpafmat... - Similar -
   by K Kant - 2004 - Related articles

9. Water quality information- Do private well water supplies have ...

   Radon gas can cause lung cancer if inhaled because the products of its decay can accumulate in the lungs and damage lung ... Lime soda ash water treatment · Water softener alternatives ... Stone Fly & May Flies show the water quality ...
   www.freedrinkingwater.com/.../14-08-well-water-radon-gas-compared2-ground-water.htm -Cached - Similar -
10. [PDF]

    USE OF BOTTOM ASH AND FLY ASH IN RAMMED-EARTH CONSTRUCTION

    File Format: PDF/Adobe Acrobat - View as HTML
    The EERC concludes that the use of lignite fly ash and bottom ash in RE ...... Lung Association (1993), radon, a colorless, odorless gas, is a national indoor ... estimated to be the second leading cause of lung cancer, responsible for ...
    www.undeerc.org/carrc/Assets/RammedEarth.pdf - Similar -
    by MK Fine - Related articles - All 3 versions

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Fly ash

From Wikipedia, the free encyclopedia

Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000 x magnification

Fly ash is one of the residues generated in the combustion of coal. Fly ash is generally captured from the chimneys of coal-fired power plants, and is one of two types of ash that jointly are known as coal ash; the other, bottom ash, is removed from the bottom of coal furnaces. Depending upon the source and makeup of the coal being burned, the components of fly ash vary considerably, but all fly ash includes substantial amounts of silicon dioxide (SiO₂) (both amorphous and crystalline) and calcium oxide (CaO), both being endemic ingredients in many coal bearing rock strata.

Toxic constituents depend upon the specific coal bed makeup, but may include one or more of the following elements or substances in quantities from trace amounts to several percent:arsenic, beryllium, boron, cadmium, chromium, chromium VI, cobalt, lead, manganese,mercury, molybdenum, selenium, strontium, thallium, and vanadium, along with dioxins andPAH compounds.^[1][2]

In the past, fly ash was generally released into the atmosphere, but pollution control equipmentmandated in recent decades now require that it be captured prior to release. In the US, fly ash is generally stored at coal power plants or placed in landfills. About 43 percent is recycled,^[3] often used to supplement Portland cement in concrete production. Some have expressed health concerns about this.^[4] Fly ash is increasingly finding use in the synthesis of geopolymersand zeolites.

Contents [hide] 1 Chemical composition and classification 1.1 Class F fly ash 1.2 Class C fly ash 2 Disposal and market sources 3 Fly ash reuse 3.1 Portland cement 3.2 Embankment 3.3 Soil stabilization 3.4 Flowable fill 3.5 Asphalt concrete 3.6 Geopolymers 3.7 Roller compacted concrete 3.8 Bricks 3.9 Waste management 4 Environmental problems 5 5.1 Groundwater contamination 5.2 Spills of bulk storage 5.3 Contaminants 5.4 Contamination in Byker 6 Exposure concerns 7 See also 8 External links 9 References