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Showing posts with label hydrofluosilicic. Show all posts
Showing posts with label hydrofluosilicic. Show all posts

Tuesday, March 21, 2023

Fluoride Abundant in Foods, Beverages, Dental Products; Fluoridation Unnecessary

Total fluoride intake should be determined before prescribing more, reported former New York State Department of Health Dental Director, J. Kumar, He wrote: “Because of the availability of fluoride from multiple sources, practitioners should prescribe other forms of fluoride therapy based on an understanding of patients’ total exposure to fluoride and the need for it,” (NYS Dental Journal February 1998). Few dentists, if any including him, heed that advice.

The American Dental Association concurs: "It also is critical that the dentist assess a child’s total fluoride exposure from all sources (beverages, food, toothpaste, supplements, topical applications and so forth..." (Journal of the American Dental Association 2014)

Never is fluoride intake tallied when communities are pressured to continue or start fluoridation. Legislators should know much fluoride children already ingest before feeding them more via their water supply. 

The daily upper limits (UL) for fluoride are listed below, according to the National Institutes of Health Office of Dietary Supplements (Taking more than the UL can be harmful and not recommended) 

Life StageUpper Limit
Birth to 6 months0.7 mg
Infants 7–12 months0.9 mg
Children 1–3 years1.3 mg

Fluoride sources are many:

Absent from labels, fluoride is in virtually all foods and beverages, including, soda, baby foods and all infant formulas, It’s high in tea (up to 6 mg/L, according to the US National Institutes of Health), ocean fish and soy productsAnd, because of fluoride-containing pesticide residues, all grapes and its products (raisins, juice, wine, jellies, jams) have a significant fluoride content. (Cryolite, the fluoride-containing pesticide used on grapes was voluntarily withdrawn from the market by the manufacturer in 2021)

EPA allows extremely high amounts of fluoride pesticide residues on foods  See "Fluoride tolerances approved by US EPA as of July 15, 2005"

Fluoride is even in chocolate, french friessea saltHimalayan salt, and ready-to-drink coffee (up to 1.5 mg/L)

Foods made with mechanically separated (boned) chicken, such as canned meats, hot dogs, and infant foods, also add fluoride to the diet (J Agric Food Chem Sept 2001) "A single serving of chicken sticks alone would provide about half of a child's upper limit of safety for fluoride," the researchers report.

Fluoride ingested daily from toothpaste ranges from 1/4 to 1/3 milligram (National Institutes of Health) “Gels used by dentists are typically applied one to four times a year and can lead to ingestions of 1.3 to 31.2 mg fluoride each time.” 

"Following Silver Diamine Fluoride  application, the serum fluoride concentrations ranged from 6 to 36ng/mL(0.006 to 0.036 ppm)"

Tooth filling material - glass ionomer cement (GIC) leaches out fluoride over time


Other sources come from feed regimens of animal products, animal products; food storage containers (Teflon-coated containers); and food packaging (migration of perfluorochemicals into food).

Paper cups lined with water-proofing chemicals give off fluoride ions, when exposed to hot liquids. And Paper straws contain fluorinated compounds. 

Some calcium supplements contain fluoride
"eggshells also contain trace amounts of minerals that promote bone health, such as strontium, fluoride, magnesium, and selenium...their powdered form is used in dietary supplements"

Fluoride in other sources, according to "A Concise Overview Of Fluoride Contamination And Its Adverse Effects On Human Health And Plant Biochemistry," (European Chemical Bulletin 2020)

Various spices, including Almond, Garlic, Ginger, Coriander, Cumin Seeds, Turmeric, and Black Salt, are known to contain fluoride. The fluoride concentrations in these spices are as follows: Coriander at 2.3%, Cumin Seeds at 1.8%, Ginger at 2.0%, and Garlic at 5.0% (Mahapatra, 2007).

Additionally, nuts and oilseeds such as almond, coconut, mustard oil, and groundnut exhibit elevated levels of fluoride. The fluoride concentrations in these items are 4.0% for Almond, 4.4% for Coconut, 5.7% for Mustard Seeds, and 5.1% for Groundnut (Mahapatra, 2007)

Human activities such as industrialization, motorization, fluoridating drinking water sources, fluoridating dental goods, refrigerants, and fire extinguishers, among others, can lead to man-made fluoride contamination," (International Journal of Innovative Research in Technology)

How much is too much? 

According to the National Academy of Sciences, “without causing unwanted side effects including moderate dental fluorosis,” (yellow splotched teeth), the adequate daily intake of fluoride, from all sources, should not exceed: (But does) 

 -- 0.01 mg/day for 0 – 6-month-olds (which is in every infant formula – concentrated or not) 

-- 0.5 mg/day for 7 through 12 months 

-- 0.7 mg/day for 1 – 3-year-olds 

-- 1.1 mg/day for 4 – 8 year olds 

This is what moderate dental fluorosis looks like, according to the US Centers for Disease Control 


The US Department of Health and Human Services (1991) estimated that total fluoride exposure in fluoridated communities ranges from 1.6 to 6.6 mg/day 

Further, parents need to know that fluoride supplements have “not been found by FDA to be safe and effective.” 

No evidence proves anyone is or ever was fluoride-deficient. Fluoride isn’t a nutrient or essential for decay-free teeth – meaning that fluoride-free diets do not cause cavities. Fluoride is a drug with side effects. In fact, 70% of US kids are fluoride overdosed and afflicted with dental fluorosis – white spotted, yellow, brown and/or pitted teeth which created a lucrative market for cosmetic dentistry because fluoride is everywhere. But tooth decay is still epidemic 

The EPA regulates water fluoride levels to protect against fluoride-caused bone damage. So It's important to know that fluoride concentration in drinking water does not equate to an individual's daily dose. Fluoridation should never begin without fore knowledge of the community's fluoride intake from all sources.


FLUORIDE SOURCES IN THE ENVIRONMENT

According to "Fluoride contamination, consequences and removal techniques in water: a review," in the journal Environmental Science: Advances (Issue 5, 2022),

"The sources of fluoride in the environment include industrial plants, aluminum smelters producing glass brick, hydrofluoric acid, tile works and phosphate fertilizer plastic factories, textile dyeing, and industries that consume high sulfur non-coking coal for thermal power. 


Currently, high-tech companies developing semiconductors and integrated circuits produce significant fluoride-containing industrial wastewater.


Cigarettes, which contain an average of 236 ppm fluoride, play a significant role in human fluoride consumption. 


Teflon-coated cookware may potentially increase the fluoride absorption in humans. The fluoride concentrations in Teflon-coated cookware is as high as almost 3 ppm, whereas it is lower in aluminum cookware. 


Also, the fluoride concentrations are high in stainless steel and Pyrex ware, although to a lower extent. In normal and high quantities, fluoride in water may cause aluminum to leach from cooking utensils and copper from pipework."


                                                   END 

Sunday, May 30, 2010

How Lead Gets into Fluoridation Chemicals

Fluoride and Lead by Frances Frech

Originally presented at a State Lead Commission hearing in
Hannibal, Missouri in 1994

All of the fluoride products used in the artificial fluoridation of water are contaminated with lead and arsenic. (Frech  received the evidence from Margaret Stasikowski, an official with the EPA, in the form of copies of pages from Water Chemicals Codex, National Academy Press, Washington, DC, 1982. This is confirmed by the 2019 fact sheet produced by NSF International, the private company that regulates fluoridation chemicals.)

The lead contamination is considered the most serious so we'll deal with that one rather than with both substances. Lead is creating the most concern today we'll go into the arsenic angle in a later paper.

So How does the tainting occur? In the matter of the fluosilicates (such as hydrofluosilicic acid); the most commonly used fluoride substances in community water systems, this is the story:

The fluosilicates are the by-products of the phosphate fertilizer industry. In the manufacture of this kind of fertilizer, phosphorus is obtained from phosphate rock, which has to be broken down with sulfuric acid.(1) Fluorine occurs naturally in combination with the phosphates.(2) In these two facts lie the keys to the presence of lead in the fluosilicates.

Step One: Sulfuric acid is prepared by either of two ways, the lead chamber process(3) or the contact method.(4) In its purest form (made by the contact method) it is used in pharmaceuticals; in its lowest grade (produced by the lead chamber process) it is used by the fertilizer industry.(5) It is also frequently recovered for re-use, but this form is too impure for any purpose except the manufacture of fertilizer, for which it is quite suitable.(6)

In the lead chamber process purification is carried out only to the extent of removing substances that could clog the machinery.(7) Of the common metals, only lead is resistant to cold sulfuric acid in concentrations up to 100%. But in hot acid the resistance is up to about 70%.(8) The lead chamber type uses heat (about 600 C) and isn't cooled during the process. That's why a certain amount of lead is leached during this procedure.

If a pure product is needed, the contact method is used, but it's more expensive, more complicated. In the making of fertilizer, however, a pure grade is not necessary. After all, neither fertilizer nor its by-products were intended for human consumption.

Step Two: Fluorine, which is a highly reactive element capable of joining with any other element except oxygen, is able to leach lead from the contaminated sulfuric acid. In the past hydrofluosilicic acid was simply neutralized and discarded. The picking up of lead wouldn't have been a problem. But eventually it was decided that the acid, being already in solution, would be better, simpler to use, and less expensive than sodium fluoride.(9) The lead contamination, apparently, was forgotten (if, indeed, it had ever been noticed.)

Another way in which fluoridation contributes to lead in the water is through its action on whatever lead pipes may still be in existence in older homes. Any lead pipes would be old lead. These are ordinarily covered by a protective coating made by the lead itself which is impervious to diluted acids (as all of them would be in water.) Water acts slowly on lead, forming lead hydroxide, but the action is slight if the water contains carbon dioxide or carbonates or sulfates which interact with lead to form these protective coatings.(11) It's interesting that the lead pipes in Roman aqueducts, 2000 years old, are still in such good shape the numbers and letters engraved on them are clearly legible.(12)

In fluoridated water, though, it's a different matter. Fluorine can and does destroy the protective coatings; it can and does leach lead.

A pediatrics textbook published in 1964 (13) noted that the incidence of lead poisoning had been rising in certain metropolitan areas in Eastern United States. The blame was laid on old lead paint flaking from walls and woodwork. But most of the lead chips were old before 1964; some children chewed them long before then. But a new source of lead had arisen--unnoticed: The fluoridation of water, with lead-contaminated fluoride, a substance also capable of leaching lead from the pipes. Although there were scattered places fluoridating throughout the nation, larger numbers of eastern metropolitan communities were doing so.

Today one in nine children under the age of six is said to have unacceptably high blood lead levels (14) - As many as 500,000 US children under age six (2017) - even though lead paint was banned in 1978 and hadn't been used extensively since the 1950's!) Lead in gasoline has been phased out, and lead solder hasn't been permitted on copper tubing since 1986. 

The EPA says that lead stabilizes in five years. So except for fluoride use, any pipes, whether of lead or lead-soldered, should not now be hazardous. The most revealing statistics, though, are the high blood lead levels in 400,000 newborns each year. Newsweek in its article on lead and the threat to children (15) said that pregnant women passed this toxic substance to their unborn children by eating, drinking, or breathing it. But even though pregnant women do sometimes have weird cravings, it's not likely more than a tiny percentage would be chewing paint chips, nor would a significant number of them be engaged in renovating old houses. The lead is in the water--and in foods and beverages prepared with the water.

The EPA estimates that 10-20% of the lead in children comes from the water.(16) That agency, which knows of the lead contamination of fluoride products, insists the amount is too small to be of regulatory concern. What they have overlooked, though, is that it concentrates in the body tissues, and over time, would add up to quite a lot. In addition, it becomes concentrated in products processed with the water. The 10-20% directly from the water can easily become three or four times as much.

The EPA lists as health problems caused by lead the following conditions: Interference with formation of red blood cells, anemia, kidney damage, impaired reproductive function, interference with Vitamin D metabolism, impaired cognitive performance, delayed neurological and physical development, elevations in blood pressure.(17) The agency also suggests lead my be a carcinogen, possibly causing kidney tumors and lymphocytic leukemia.(18) Furthermore, it's a known scientific fact that lead poisons the bone marrow.(19) Surely, then, it would be prudent to avoid even "a little bit of lead," assuming that's all fluoridation contributes.

But the evidence shows it's much more than that. Let us tell you a tale of two cities--Tacoma, Washington, and Thurmont, Maryland. Both of them saw significant decline in lead levels only six months after fluoridation was stopped. (In Tacoma, that was due to equipment problems, in Thurmont, it was a temporary ban by the city council.) Tacoma registered a drop of nearly 50% (20); in Thurmont it was 78%.(21) To the best of our knowledge, no other explanations were offered. In Thurmont the ban is now permanent.(22) and still not fluoridated in 2022. In Tacoma (re) started in 1994.

We have more points to add. As we've already mentioned, the EPA says that lead may be implicated in causing leukemia. A booklet published by the Leukemia Society in 1987 noted that chemicals which damage the bone marrow can cause leukemia. The Book of Popular Science, 1974, pointed out that bone marrow is poisoned by lead. (23) Are we to believe, then, nothing is wrong with putting a little bit of lead into the water (from which it will also enter, more concentrated, food and beverages prepared with the water?)

The EPA permits lead-contaminated fluorides to be added; they do not require it. Thus, any community, anywhere, could halt the program any time, with the consent of its citizens, who surely would consent if given the facts.

Lead-tainted fluorides are waste products mainly of the aluminum and phosphate fertilizer industries, largely from US companies. But we've learned that in some communities sodium fluoride imported from Japan or sodium silicofluoride from Belgium are used. Neither of these nations fluoridates its own water supplies. (24) (Don't you get the feeling we're in the same category as a Third World country becoming a toxic waste dump for others?)

In conclusion, there's still the matter of lead being leached from old pipes. Anyone who argues that fluoridation had nothing to do with it will have to explain those well-preserved lead pipes from more than 2000 years ago in unfluoridated Roman water.

The following is from the Fluoride Action Network

More recently, water departments have confirmed that the addition of FSA [Fluorosilicic acid] can increase the acidity of water, which in turn makes the water more corrosive.

In San Francisco, water treatment engineers found that the addition of FSA to the city’s soft water reduced the pH from 9 to less than 7.5. (Wilczak 2010) Because of this, San Francisco added additional caustic soda to the water to bring the pH back to non-corrosive levels.

Similarly, in Thunder Bay, Canada, the addition of FSA was found to reduce the pH of the city’s soft water (from 7.54 to 7.27), nearly tripling the rate of lead leaching from pipes.

“The Thunder Bay drinking water is corrosive by nature. Addition of fluoridating agents to the water, especially fluorosilicic acid would increase this tendency and hence increase lead levels at the consumer tap. The use of an anti-corrosion agent, such as sodium hydroxide as demonstrated in this experiment, would be needed to counteract this effect.” (Vukmanich 2009)

Further: 

Fluoridation Can Leach Lead from Pipes, Even in Non-Acidic Water; is Linked to Elevated Blood Lead Levels in Children and Fluoride Can Increase the Uptake & Toxicity of Lead - References here: https://fluoridealert.org/articles/fluoridation_flint_lead/





REFERENCES (for Frances Frech:

(1) Book of Popular Science, Grolier, Inc., 1974, Vol.7, 63.
(2) Ibid.
(3) Book of Popular Science, Vol. 3, 167-169.
(4) Book of Popular Science, Vol. 7, 62.
(5) Encyclopedia Brittanica, 1957, Vol.21, 545.
(6) Ibid., 545.
(7) Ibid., 546.
(8) Ibid., 545A
(9) Book of Popular Science, Vol. 7, 63-64.
(10) Encyclopedia Americana, 1945, Vol. 1, 456.
(11) Encyclopedia Brittanica, 1957, Vol.1, 715.
(12) Book of Popular Science, Vol. 3, 39.
(13) Textbook of Pediatrics, Nelson WS, MD, WB Saunders Co., Philadelphia,London, 1964, 1557.
(14) Newsweek, "Lead and Your Kids," July 15, 1991.
(15) Ibid.
(16) Ibid.
(17) Federal Register, Bol. 56, No. 110, June 7, 1991, 264.
(18) Ibid., 265-70.
(19) Book of Popular Science, Vol. 3, 74.
(20) Letter from the Tacoma Public Utilities, Dec. 2, 1992.
(21) Fluoride Report, newsletter, April, 1994, 5.
(22) Ibid.
(23) Book of Popular Science, Vol. 3,74.
(24) Letter from Tacoma Public Utilities, May 22, 1992.
(25) Kansas City STAR, April 19, 1994.