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Fluoride Exposure From Burning Coal

Health effects of indoor fluoride pollution from coal

Health effects of indoor fluoride pollution from coal

The combustion of high fluoride-content coal as an energy resource for heating, cooking, and food drying is a major exhaust emission source of suspended particulate matter and fluoride. High concentrations of these pollutants have been observed in indoor air of coal-burning families in some rural areas in China.

Health effects of fluoride pollution caused by coal burning

Health effects of fluoride pollution caused by coal burning

Apr 23, 2001 Combustion of coal and coal bricks is the primary source of gaseous and aerosol fluoride and these forms of fluoride can easily enter exposed food products and the human respiratory tract. Major human fluoride exposure was caused by consumption of fluoride contaminated food, such as corn, chilies and potatoes.

Health effects of fluoride pollution caused by coal burning

Health effects of fluoride pollution caused by coal burning

Apr 23, 2001 Recently a huge amount of fluoride in coal has been released into indoor environments by the combustion of coal and fluoride pollution seems to be increasing in some rural areas in China. Combustion of coal and coal bricks is the primary source of gaseous and aerosol fluoride and these forms of fluoride can easily enter exposed food products and the human respiratory tract.

COAL BURNING IN CHINA Fluoridation Australia

COAL BURNING IN CHINA Fluoridation Australia

SUMMARY Data on coal-burning endemic fluorosis throughout China and on the exposure-response relationship between concentrations of fluoride determined in coal samples and the prevalence of dental fluorosis reported from 17 representative surveillance stations in Southwest China were used to estimate the safety threshold for coal fluoride ...

Coal Mine Dust Exposures and Associated Health

Coal Mine Dust Exposures and Associated Health

coal miners at age 58 following exposure to respirable coal mine dust over a 40-year working lifetime. Table 3.Excess exposure-attributable prevalence of simple CWP or PMF among U.S. coal miners at age 65 following exposure to respirable coal mine dust over a 45-year working lifetime.

Coalburning endemic fluorosis is associated with reduced

Coalburning endemic fluorosis is associated with reduced

To study the effect of fluorine on the oxidative stress in coal-burning fluorosis, we investigated the environmental characteristics of coal-burning endemic fluorosis combined with fluorine content surveillance in air, water, food, briquette, and clay binder samples from Bijie region, Guizhou Province, southwest of China. The activities of antioxidant enzymes including copperzinc superoxide ...

Hydrogen fluoride may be the major cause of coal burning

Hydrogen fluoride may be the major cause of coal burning

Oct 01, 2011 The exact form of fluorine released from coal, however, remains unknown, and to date most studies on coal burning endemic fluorosis have been focused on total fluoride.

Environmental epidemic characteristics of coalburning

Environmental epidemic characteristics of coalburning

mate the safety threshold for coal fluoride. Coal-burning endemic fluorosis occurs mainly in the mountainous areas of this part of China, where the ... sis was positively correlated with coal exposure time and coal consump-tion.24 Moreover, dental fluorosis is a sensitive first-sign indicator of a.

Exposure of Fluoride in Coal Basin

Exposure of Fluoride in Coal Basin

Coal is a dirty fuel contaminated with toxic elements at the traces 1 2 . The fluoride content in the coals is ranged from 20 - 500 mgkg 3 . The environments in coal burning areas were severely contaminated with F and other toxicants 4 -9 .

Health effects of fluoride pollution caused by coal burning

Health effects of fluoride pollution caused by coal burning

Apr 23, 2001 1. Introduction. Fluoride compounds are found in a wide range of concentrations in coal, soil, ground water, sea water, minerals, plants and animals UNEPILOWHO, 1984, Symonds et al., 1988.Coal is the most abundant fossil fuel resource worldwide, therefore, a huge amount of hazardous chemical components including fluorides have been released into the environment by combustion of coal

Fluoride GreenFacts Facts on Health and the Environment

Fluoride GreenFacts Facts on Health and the Environment

Exposure to fluoride may also result from the ingestion of fluoridated salt or fluoridated milk. ... to the actual consumption of often large amounts of drinking-water containing naturally occurring elevated levels of fluoride, the indoor burning of coal rich in fluoride, the preparation of foodstuffs in water containing increased fluoride ...

Child Skeletal Fluorosis from Indoor Burning of Coal in

Child Skeletal Fluorosis from Indoor Burning of Coal in

Other methods of fluoride exposure control need to be designed if fluorosis prevalence among residents of coal- burning endemic fluorosis areas is to be reduced. 5. Conclusions. Indoor burning of fluoride-rich coal is believed to cause endemic fluorosis cases among children in the Guizhou Province of China.

Health effects of indoor fluoride pollution from coal

Health effects of indoor fluoride pollution from coal

Because indoor fluoride from combustion of coal is easily absorbed in stored food and because food consumption is a main source of fluoride exposure, it is necessary to reduce airborne fluoride and food contamination to prevent serious fluorosis in China.

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