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Co-occurrence of geogenic and anthropogenic contaminants in groundwater from Rajasthan, India
Highlights New data from 243 wells in multiple aquifers and climate regions show widespread contamination of Rajasthan’s groundwater. Both geogenic and anthropogenic processes affect groundwater chemistry and quality. Contaminants of most concern (fluoride, nitrate, and uranium) often co-occur at concentrations that threaten human health. Human contamination may feed into geological processes to exacerbate geogenic contaminants’ […]
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Letter: Not just one study
1938 was the year that the heavily polluting aluminum producers began negating studies and burying science that showed severe harm and damage from fluoride emitted from their waste stacks. This set the precedent for the fertilizer industry to convince doctors and dentists, through clever PR campaigns, that hydrofluosilicic acid scrubbed from their industrial waste stacks, […]
Canada, Alberta -
Fluoride removal by palm shell waste based powdered activated carbon vs. functionalized carbon with magnesium silicate: Implications for their application in water treatment.
Abstract In this study, palm shell activated carbon powder (PSAC) and magnesium silicate (MgSiO3) modified PSAC (MPSAC) were thoroughly investigated for fluoride (F–) adsorption. F– adsorption isotherms showed that PSAC and MPSAC over-performed some other reported F– adsorbents with adsorption capacities of 116 mg g-1 and 150 mg g-1, respectively. Interestingly, the MgSiO3 impregnated layer […]
International Water Treatment -
Long Beach Supervisor strongly dissents to refineries continued use of Modified Hydrofluoric Acid (MHF)
In an abrupt conclusion to an issue covered in detail in multiple stories by LBREPORT.com, the governing board of the South Coast Air Quality Management District (AQMD) voted 8-3 on Sept. 6 — with L.A. County Supervisor Janich Hahn strongly dissenting (AUDIO below) to approve a proffer by the Valero Wilmington and Torrance (ToRC) refineries […]
United States, California United States Oil Refineries -
Baigel responds to Waugh: Government was right to fluoridate the water supply
SIR – I read the letter from Mr Declan Waugh, environmental scientist, with great interest. He must be admired for his tenacity in pursuing research into the dangers arising from the flouridation of the mains water supply in the USA and other countries. I was a student at the Dental Hospital in Dublin in the early […]
Ireland -
Canadian Mother-Offspring IQ Study: Dental Health Services Victoria
DHSV strongly supports health benefits of water fluoridation Canadian researchers recently released the results of a study on maternal fluoride exposure during pregnancy and IQ scores in young children between 2008 to 2011[1]. A finding of the study, published in JAMA Paediatrics, has sparked discussion among members of the community – that an increase in […]
Australia -
More safety measures chosen over phase-out of toxic gas at two South Bay refineries
Supervisor Hahn condemns the move; refinery officials applaud the decision. The region’s air-quality watchdog voted Friday to accept an unsolicited offer of increased safety enhancements at the two South Bay refineries that use modified hydrofluoric acid, saying that doing so would be the most “expeditious” method of implementing them. That brings an abrupt end to […]
United States, California Oil Refineries -
5 Things to Know About DOD’s Research on ‘Fluorine-Free’ Firefighting Foam
Aqueous film-forming foam — known as AFFF— is a firefighting foam that quickly extinguishes fuel fires on ships and airplanes. The Defense Department is conducting research on this foam because of concerns about adverse health effects. The Office of the Assistant Secretary of Defense for Sustainment wants to share five important facts about this foam […]
United States, National USA Perfluorinated chemicals -
Meadville. Fluoride, ground zero: Tour reveals site of contentious water additive process
Meadville Area Water Authority Project Manager Bob Harrington points out different aspects of the fluoride pumping station at MAWA. SHANNON ROAE/Meadville Tribune VERNON TOWNSHIP — The plain brick building off Rogers Ferry Road looks too humble to be home to such controversy. Squat and rectangular, the structure features two overhead doors that can only be […]
United States, Pennsylvania -
Potential political showdown over refinery chemical looms at Friday air quality meeting
In this Feb. 17 photo, nearly 300 Torrance residents march in support of a ban on a toxic chemical used at the Torrance refinery. (Photo by Scott Varley, Contributor) In return, the refineries have offered to voluntarily install additional safety measures they contend will offer the surrounding communities “unprecedented additional layers of protection.” The governing […]
United States, California Oil Refineries