Abstract
In reviewing the effects of the 2 pollutants on vegetation and domestic animals there can be no doubt that airborne F– is far more harmful than sulfur oxides. F– reaches the blood stream both through inhalation and by ingestion with contaminated food. In plants the translocation of F– throughout the plant structure and its damaging effect on leaves, blossoms and fruit is much more pronounced than that of sulfur oxides. Sulfur oxides irritate, primarily, the upper respiratory tract. They rarely enter the distal portions of the lungs and the alveolar system. They never enter the blood stream. F–, a systemic poison, is promptly absorbed into the blood stream from the upper respiratory tract. It affects primarily the calcified tissue but can also induce considerable damage to many other organs, especially the arteries and the heart. Where there is smoke from buringing coal there is also F–. The systemic damage to humans believed to have been induced by sulfur oxides is likely to be primarily brought on by F– in conjunction with toxic agents such as As, Cd and Hg present in coal.
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Systemic effects of fluoridated water on rats.
The biological effects of fluoride were investigated on rats fed pure spring water (natural F- concentration = 0.2 ppm) or spring water enriched with NaF to result 0.8, 1.1 or 2.2 ppm F- during 180 days. The main effects of fluoride have been: 1. Electrocardiographic recordings showed a significant reduction of the
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Fluorosis in Aden
The cases to be described here occurred in the Aden Protectorate where for the last 12 years mass screening of the chest to exclude pulmonary tuberculosis has been carried out. The patients had all drunk the brackish water from the wells, and the analysis of the water from a well
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New data for the validation of the mean daily maximum permissible concentration of hydrogen fluoride in atmospheric air
1. Round-the-clock exposure to hydrogen fluoride concentrations of 0.10 and 0.03 mg/m3 causes inhibition in the central nervous system, decreases the activity of a number of enzymes, impairs the phosphorus-calcium metabolism, and causes the accumulation of fluorine in the body and damage to the internal organs and bone tissue. 2. A
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Clinical and hygienic evaluation of the combined effect of vibration and fluoride in humans
By L. Ya. Tartatovskaya, G.N. Samokhvalova, A.G. Antropov Medical Science Centre of Prophylactics and Protection of the Health Workers in Industrial Enterprises, Ekaterinburg, Russia. The study of the combined action of vibration and intense noise, muscular loads and cooling has made it possible to assess the probability of the development of vibration
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Further observations on radiological changes of endemic food borne skeletal fluorosis
Among radiological changes in 396 cases of foodborne skeletal fluorosis, from 4 endemic areas in Guizhou, China, osteoporosis, osteomalacia and impaired bone growth were seen in addition to previously recorded findings of osteosclerosis, bone prominences, joint changes and calcification of peripheral arteries. The deformity of genu valgum, a manifestation of
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"Pre-Skeletal" Fluorosis
As demonstrated by the studies below, skeletal fluorosis may produce adverse symptoms, including arthritic pains, clinical osteoarthritis, gastrointestinal disturbances, and bone fragility, before the classic bone change of fluorosis (i.e., osteosclerosis in the spine and pelvis) is detectable by x-ray. Relying on x-rays, therefore, to diagnosis skeletal fluorosis will invariably fail to protect those individuals who are suffering from the pre-skeletal phase of the disease. Moreover, some individuals with clinical skeletal fluorosis will not develop an increase in bone density, let alone osteosclerosis, of the spine. Thus, relying on unusual increases in spinal bone density will under-detect the rate of skeletal fluoride poisoning in a population.
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Fluoride & Electrocardiogram Abnormalities
An electrocardiogram (ECG) is a diagnostic test that measures the electrical activity of the heart. An ECG can reveal heart rate, heart rhythym (i.e. steady or irregular), and the strength and timing of the heart’s natural electrical signals. ECGs are described in terms of “waves” (e.g. amplitude and duration). Problems
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Fluoride & Osteoarthritis
While the osteoarthritic effects that occurred from fluoride exposure were once considered to be limited to those with skeletal fluorosis, recent research shows that fluoride can cause osteoarthritis in the absence of traditionally defined fluorosis. Conventional methods used for detecting skeletal fluorosis, therefore, will fail to detect the full range of people suffering from fluoride-induced osteoarthritis.
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Fluoride & Myocardial Damage
Structural damage to the heart resulting from fluoride toxicity has been observed in numerous human and animal studies. The general features of this damage include cloudy swelling, vacuolization or vacuolar degeneration, hemorrhages, interstitial edema, fibrous necrosis, dissolution of nuclei, and thickening of the vessel walls in the heart muscle (Basha
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Skeletal Fluorosis: The Misdiagnosis Problem
It is a virtual certainty that there are individuals in the general population unknowingly suffering from some form of skeletal fluorosis as a result of a doctor's failure to consider fluoride as a cause of their symptoms. Proof that this is the case can be found in the following case reports of skeletal fluorosis written by doctors in the U.S. and other western countries. As can be seen, a consistent feature of these reports is that fluorosis patients--even those with crippling skeletal fluorosis--are misdiagnosed for years by multiple teams of doctors who routinely fail to consider fluoride as a possible cause of their disease.
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