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(PDF) Fluoride exposure from burning coal-clay in Guizhou ...

FLUORIDE EXPOSURE FROM BURNING COAL-CLA Y. IN GUIZHOU PROVINCE, CHINA. Daishe Wu, a,b,c Baoshan Zheng,a Aimin Wang,d Guangqian Yua,b. Guiyang, China. SUMMARY: The very high prevalence of dental ...

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CiteSeerX — FLUORIDE EXPOSURE FROM BURNING COAL-CLAY

fluoride exposure burning coal-clay fluorine content rural re-gions skeletal fluorosis total fluorine emission high prevalence majianzhuang village local coal low water fluoride hualuo village total fluorine content fluorine source guizhou province

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Health effects of indoor fluoride pollution from coal ...

May 01, 1998  Xu Y, Huang H, Zeng Q, Yu C, Yao M, Hong F, Luo P, Pan X and Zhang A (2017) The effect of elemental content on the risk of dental fluorosis and the exposure of the environment and population to fluoride produced by coal-burning, Environmental Toxicology and Pharmacology, 10.1016/j.etap.2017.10.011, 56, (329-339), Online publication date: 1-Dec ...

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Health effects of fluoride pollution caused by coal burning

Apr 23, 2001  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 ( Ando et al., 1995, Ando et al., 1998 ). Inhalation exposure to airborne fluoride has been associated with respiratory failure ( Hirano and Ando ...

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Fluoride Exposure From Burning Coal

Fluoride and sulfur dioxide indoor pollution situation and ..... 94.597.3% of total fluoride exposure was caused from dietary food consumption and only 0.8 ... the outdoor air was polluted by fluoride emitted by coal-burning.

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[Relationship between fluoride exposure, orthopedic ...

Chronic exposure to fluoride is a public health problem worldwide. We explored the relationship between fluoride exposure, orthopedic injuries and bone formation markers alkaline phosphatase (ALP), bone Gla protein (BGP) in participants with coal-burning fluorosis in Hehua Village (coal-burning fluorosis endemic area) in Zhijin County of Guizhou Province and Zhangguan Village (non-fluoride ...

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Child Skeletal Fluorosis from Indoor Burning of Coal in ...

Oct 19, 2009  Upon burning, gaseous fluoride and particulate dust-containing fluoride are released from coal briquettes. Ando et al. estimated that only 2% of fluoride exposure was due to inhalation of indoor air in coal- burning households, while 97% of fluoride exposure was due to ingestion of food dried and stored inside the household . Residents of Zhij ...

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Exposure of Fluoride in Coal Basin

Feb 19, 2016  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 mg/kg [ 3] . The environments in coal burning areas were severely contaminated with F − and other toxicants [ 4] - [ 9] .

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Coal-burning endemic fluorosis is associated with reduced ...

Apr 09, 2013  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 copper/zinc superoxide ...

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Hydrogen fluoride may be the major cause of coal burning ...

Oct 01, 2011  Hydrogen fluoride may be the major cause of coal burning endemic fluorosis. by Science in China Press. Professor Handong Liangfrom State Key Laboratory of Coal Resources and Safe Mining, China ...

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Fluoride Online Learning Video Activity Script

•coal and fuel combustion •enamel, pottery, glass, and brick works •oil refineries ... Understanding fluoride exposure levels from all sources is crucial because risk assessment for fluoride in water and food should now be inclusive of these common multiple exposures.

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Fluoride Content in Asian Produced Green Teas - Dental News

Oct 29, 2021  Ando M, Tadano M, Asanuma S, Tamura K, Matsushima S, Watanabe T, et al. Health effects of indoor fluoride pollution from coal burning in China. Environ Health Perspect. 1998;106(5):239-44. Taylor DA. Recovering the good earth: China’s growing organic market. Environ Health Perspect. 2008;116(8):A346-9. Overview. In: South Korea: analysis.

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Health effects of fluoride pollution caused by coal burning.

Apr 01, 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.

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Exposure of Fluoride in Coal Basin

Feb 19, 2016  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 mg/kg [ 3] . The environments in coal burning areas were severely contaminated with F − and other toxicants [ 4] - [ 9] .

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Hydrogen fluoride may be the major cause of coal burning ...

Oct 01, 2011  Hydrogen fluoride may be the major cause of coal burning endemic fluorosis. by Science in China Press. Professor Handong Liangfrom State Key Laboratory of Coal Resources and Safe Mining, China ...

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Coal-burning endemic fluorosis is associated with reduced ...

Apr 09, 2013  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 copper/zinc superoxide ...

More

Child Skeletal Fluorosis from Indoor Burning of Coal in ...

Oct 19, 2009  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.

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Developmental fluoride neurotoxicity: an updated review ...

Dec 19, 2019  Of note, fluoride exposure was accompanied by other contaminants from coal burning in some studies [96, 99, 101, 102]. Four studies used the degree of dental fluorosis as exposure parameter, and three of them reported a clear negative association with IQ [ 100 , 103 , 107 ], although statistical significance was not reached in one study [ 102 ].

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The pathogenesis of endemic fluorosis: Research progress ...

ily consumed, the intake of fluoride via tea can be several times greater. In addition, in some provinces of China, there is the habit of burning bituminous coal, which has a high fluoride content, to cook, and dry food. With exposure to atmospheric pollution derived from burning these fossil fuels over a

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Antifluoridation Bad Science Science-Based Medicine

Aug 01, 2012  Two studies looked at fluoride exposure from inhaling smoke from coal burning. So the question is – how do these levels of exposure relate to the amount of fluoride being added to water in the US (because toxicity is always all about dose)? There was a lot of variability across the studies, but generally the high fluoride groups were in the 2 ...

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Fluoride Myths Facts Campaign for Dental Health

These researchers pointed out that the lower IQs could be traced to other factors, such as arsenic exposure, the burning of high-fluoride coal inside homes and the eating of contaminated grain. Fact 17 Much of the fluoride used to fluoridate public water systems is extracted from phosphate rock.

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Fluoride Online Learning Video Activity Script

•coal and fuel combustion •enamel, pottery, glass, and brick works •oil refineries ... Understanding fluoride exposure levels from all sources is crucial because risk assessment for fluoride in water and food should now be inclusive of these common multiple exposures.

More

Fluoride Content in Asian Produced Green Teas - Dental News

Oct 29, 2021  Ando M, Tadano M, Asanuma S, Tamura K, Matsushima S, Watanabe T, et al. Health effects of indoor fluoride pollution from coal burning in China. Environ Health Perspect. 1998;106(5):239-44. Taylor DA. Recovering the good earth: China’s growing organic market. Environ Health Perspect. 2008;116(8):A346-9. Overview. In: South Korea: analysis.

More

Fluoride Toxicity: Practice Essentials, Pathophysiology ...

Jan 11, 2016  A study to investigate fluoride contamination and fluoride exposure dose assessment in lateritic zones of West Bengal, India. Environ Sci Pollut Res Int. 2015 Apr. 22 (8):6220-9. . Qin X, Wang S, Yu M, Zhang L, Li X, Zuo Z, et al. Child skeletal fluorosis from indoor burning of coal

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Fluorides, Hydrogen Air Fluoride, and Fluorine

sources of hydrogen fluoride, including coal burning facilities, may ... Occupational Populations Occupational exposure to hydrogen fluoride or fluorine by inhalation exposure may occur in industries involved in the production of fluorine - containing chemicals, pharmaceuticals, high

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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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Antifluoridation Bad Science Science-Based Medicine

Aug 01, 2012  Two studies looked at fluoride exposure from inhaling smoke from coal burning. So the question is – how do these levels of exposure relate to the amount of fluoride being added to water in the US (because toxicity is always all about dose)? There was a lot of variability across the studies, but generally the high fluoride groups were in the 2 ...

More

RESIDUAL FLUORIDE IN FOOD FUMIGATED WITH SULFURYL

fluorosis.3 In China, food contaminated by fluoride (F) from unvented coal burning used to dry and preserve grains and other crops is an important source of F intake, 4 and F levels from such exposure ranging from 18 to 87 ppm in corn and 114 to 1109 ppm in chili have been reported.5 In these coal-burning F-endemic

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INADEQUATE OR EXCESS FLUORIDE: A MAJOR PUBLIC

The use of fluoride-rich fuel (e.g. coal) for cooking can lead to fluoride intake from the cooked food, as well as inhalation exposure. Fluoride is sometimes added to cooking or table salt for dental caries prevention in countries or regions where drinking-water fluoridation is not

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New Study Shows Fluoride Safe NeuroLogica Blog

The second major flaw was that the high exposure groups had exposure from toxic sources, such as burning coal, or from high natural sources of fluoride. These types of exposure potentially introduce many confounding factors, that were not controlled for.

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Fluoride: Good or Bad? - Healthline

Aug 11, 2021  Additional ways people in these areas ingest fluoride include burning coal in the home and consuming a particular type of ... excessive fluoride exposure in infants and children does warrant ...

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Developmental Flouride Neurotoxicity: A Systematic Review ...

Jul 30, 2012  On further restriction of the model to exclude the 7 studies with arsenic and iodine as co-exposures and fluoride originating from coal-burning, thus including only the 9 with fluoride exposure ...

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Fluoride Online Learning Video Activity Script

•coal and fuel combustion •enamel, pottery, glass, and brick works •oil refineries ... Understanding fluoride exposure levels from all sources is crucial because risk assessment for fluoride in water and food should now be inclusive of these common multiple exposures.

More

Coal Mine Dust Exposures and Associated Health Outcomes

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.

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INADEQUATE OR EXCESS FLUORIDE: A MAJOR PUBLIC

adhesives 4manufacturing and the burning of coal rich in fluoride. The use of phosphate fertilizers contaminates soil with fluoride, as does use of fluoride-containing pesticides. the Hydrogen fluoride is used in the semiconductor industry and in the chemical industry in the production of fluorinated .

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Fluoride intake child IQ Choi 2012.pdf - Review ...

On further restriction of the model to exclude the 7 studies with arsenic and iodine as co-exposures and fluoride originating from coal burning (thus including only the 9 with fluo-ride exposure from drinking water), neither age nor year of publication was a significant predictor, and the overall test of covariates was less important (p = 0.062 ...

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