latest news: in South Africa
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Geochemical characterization and assessment of fluoride sources in groundwater of Siloam area, Limpopo Province, South Africa.
Abstract Siloam’s groundwater is reportedly characterized by high fluoride. In response to the reported high incidence of dental fluorosis in the area, sources of elevated fluoride in the groundwater were investigated. Total fluoride (TF) was determined using Ion Chromatograph and Fluoride Ion Selective Electrode. The mineral composition of rocks and soils were determined using X-ray […]South Africa
Sensodyne blocked from claiming its toothpaste can rebuild enamel once lost
South Africa’s ads regulator has instructed Sensodyne to drop claims that its Pronamel toothpaste can help “rebuild” tooth enamel. Sensodyne argues that the sodium fluoride in its product accelerates teeth enamel’s remineralisation process. But that doesn’t necessarily mean that the new enamel is generated, the ad regulator has said. SA’s Advertising Regulatory Board (ARB) has […]South Africa Toothpaste
The fatter your bank account, the better your teeth, survey finds
The more money and social standing you have, the less likely you are to suffer tooth loss. A global survey by market research platform DentaVox of 2,582 people, primarily in the 20-45 age group, found that many believe that income is the defining factor for tooth loss. The survey found 55% of respondents indicated that […]South Africa
Health Risks and Potential Sources of Contamination of Groundwater Used by Public Schools in Vhuronga 1, Limpopo Province, South Africa
Abstract Public schools in most rural areas of South Africa depend on untreated groundwater due to unreliable water supply by the municipalities. This has the potential to cause water-related health problems to school children. Temperature, pH, and electrical conductivity (EC) were measured in situ. Chemical (fluoride, chloride, sulphate, phosphate, nitrate, magnesium, calcium, sodium, and potassium) […]South Africa
Evaluation of high fluoride contaminated fractured rock aquifer in South Africa – Geochemical and chemometric approaches
Highlights • High F (>1.5) is noticed in 51% of locations which are not palatable. • High fluoride is associated with NaCl water types derived from natural processes and evaporation. • PCA and HCA analysis justify that mineral weathering, evaporation and wastewater infiltration regulate the water chemistry. • PHREEQC-Groundwater is undersaturated with Cl and SO4 […]South Africa
Full commercial production from newly opened fluorspar mine Nokeng expected later this month
The R1.7-billion Nokeng fluorspar mine, which unlisted fluorspar developer Sepfluor has built north-east of Pretoria, in Gauteng, was officially opened on Thursday. The mine is one of only two operating fluorspar mines in South Africa, although there is also a fluorspar tailings operation that produces calcium fluoride. The Nokeng operation was expected to ramp up […]South Africa Mining Industry
SK starts work to produce high-purity hydrogen fluoride on its own
SK Group has started to propel its own production of high-purity hydrogen fluoride, which is used for making semiconductors. With SK Hynix, the world’s No. 2 DRAM maker, as its affiliate, SK Group is focusing its capabilities on securing replacement sources across the board. “We are currently working on related development with a goal of […]South Africa Electronics Industry
Japan-South Korea ‘trade war’: has Tokyo shot itself in foot?
Japan is to restrict exports to South Korea of three key materials used in smartphone displays and chips as bilateral ties take turn for the worse But move could hurt Japanese companies in the long term as Korean firms are forced to rethink their supply chain Japan’s move to tighten controls on exports of hi-tech […]South Africa
Evaluation of high fluoride contaminated fractured rock aquifer in South Africa – Geochemical and chemometric approaches.
Highlights High F (>1.5) is noticed in 51% of locations which are not palatable. High fluoride is associated with NaCl water types derived from natural processes and evaporation. PCA and HCA analysis justify that mineral weathering, evaporation and wastewater infiltration regulate the water chemistry. PHREEQC-Groundwater is undersaturated with Cl and SO4 and saturated/over-saturated with carbonate […]South Africa
Reason to switch to fluoride-free toothpaste during pregnancy
The findings of new research may make you want to switch to fluoride-free toothpaste while pregnant. Read on to find out why… A study of over 200 pregnant women and their children found that higher levels of urinary fluoride during pregnancy are associated with more ADHD-like symptoms in school-age children. “Our findings are consistent with […]South Africa