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fluoride exposure from burning coal

citeseerx fluoride exposure from burning coal

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 ... 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 Environ Toxicol Pharmacol . 2017 Dec56329-339. doi 10.1016/j.etap.2017.10.011.

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fluoride exposure from burning coalclay 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. 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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pdf fluoride exposure from burning coal

It is a list of 19 studies, published from 2017 to 2021, reporting an association of fluoride exposure to lower IQ in children. This list includes 10 studies from China, 3 from Mexico, 2 from Canada, and 1 each from Egypt, India, Kenya and Sudan. Director of the Fluoride Action Network. Guo X, Wang R, Cheng C, Wei W, Tang L, Wang Q, et al. A preliminary investigation of the IQs of 713 year-old children from an area with coal burning-related fluoride poisoning. Fluoride. 2008 41 (2)125128. Google Scholar

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pdf fluoride exposure from burning coalclay in

Nov 22, 2021 A preliminary investigation of the IQs of 713 year-old children from an area with coal burning-related fluoride poisoning. Fluoride 41 (2), 125128 (2008). Google Scholar 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

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citeseerx fluoride exposure from burning

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. Fluoride-induced oxidative stress in three-dimensional culture of OS732 cells and rats. Exposure to excessive fluoride poses a threat to human health, including increased susceptibility to developing the skeletal fluorosis. Despite its recognized importance as an endemic disease, little is known about how fluoride directly impacts on osteoblasts.

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child skeletal fluorosis from indoor burning of coal in

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. 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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hydrogen fluoride may be the major cause of coal burning

In human populations with coal-burning type fluoride exposure, the results showed that miR-122-5p was downregulated but CDK4 expression was upregulated and miR-122-5p was negatively correlated with CDK4 expression. Furthermore, in human osteoblasts treated with sodium fluoride, we demonstrated that miR-122-5p mediated osteoblast activation of ... Guo X, Wang R, Cheng C, Wei W, Tang L, Wang Q, et al. A preliminary investigation of the IQs of 713 year-old children from an area with coal burning-related fluoride poisoning. Fluoride. 2008 41 (2)125128. Google Scholar

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health effects of indoor fluoride pollution from coal

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda) SUMMARY The very high prevalence of dental and skeletal fluorosis in relation to the fluorine content of local coal and clay was investigated in two rural re-gions with low water fluoride (Hualuo Village and Majianzhuang Village) of Guizhou Province, China. The fluorine content of coal in the two regions is con ... 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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health effects of fluoride pollution caused by coal burning

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. Most papers compared mean IQs of schoolchildren from communities exposed to different levels of fluoride, either from drinking water or from coal burning used as a domestic fuel. All these papers are of a rather simplistic methodological design with no, or at best little, control for confounders, e.g. iodine or lead intake, nutritional status ...

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environmental epidemic characteristics of coalburning

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. In human populations with coal-burning type fluoride exposure, the results showed that miR-122-5p was downregulated but CDK4 expression was upregulated and miR-122-5p was negatively correlated with CDK4 expression. Furthermore, in human osteoblasts treated with sodium fluoride, we demonstrated that miR-122-5p mediated osteoblast activation of ...

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vitamin e and lycopene reduce coal burning fluorosis

Apr 16, 2021 In addition, high fluoride groundwater could be related to anthropogenic activities, such as phos-phate fertilizer application, burning of coal, glass and ceramic industry 25,26. Meanwhile ... Guo X, Wang R, Cheng C, Wei W, Tang L, Wang Q, et al. A preliminary investigation of the IQs of 713 year-old children from an area with coal burning-related fluoride poisoning. Fluoride. 2008 41 (2)125128. Google Scholar

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health effects of fluoride pollution caused by coal

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 ... Nov 22, 2021 A preliminary investigation of the IQs of 713 year-old children from an area with coal burning-related fluoride poisoning. Fluoride 41 (2), 125128 (2008). Google Scholar

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fluoride action network 19 fluoride neurotoxicity

Jan 19, 2015 For example, fluoride exposure may have came from the burning of high fluoride content coal.5. Other things they did not control for was potential arsenic exposure and if the children were eating contaminated grain. Nov 01, 2021 Fluoride can be exposed through the air as well according to some reports (Weinstein and McCune, 1971, Jayarathne et al., 2014) however, the lethality is relatively less. Industrial and agricultural workers are prone to F exposure through this route. Further, excessive coal burning also increases the chance of fluorosis (He et al., 2020).

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fluoride action network let7c5p regulates cyclind1 in

Mar 20, 2020 Not to mention, other rare but equally detrimental sources like fluoride in well water, industrial fluoride exposure and indoor coal burning. 10-12. What Does Fluoride Do In The Body? When fluoride is ingested, it is absorbed into the blood through the digestive tract. With approximately 50% of fluoride being removed through urinary excretion ... Most papers compared mean IQs of schoolchildren from communities exposed to different levels of fluoride, either from drinking water or from coal burning used as a domestic fuel. All these papers are of a rather simplistic methodological design with no, or at best little, control for confounders, e.g. iodine or lead intake, nutritional status ...

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mir1225p mediates fluorideinduced osteoblast activation

Oct 03, 2017 To mimic the fluoride poisoning of patients in coal-burning regions, rats in fluoride-treated groups were fed with standard chows mixed with corn dried by burning coal from endemic fluorosis areas to reach required amount of fluoride (20, 40, or 60 mg/kg). Treatment was continued for 120 days. The rats were then killed and the testes were ... 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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