The greenhouse gases surveyed include not only carbon dioxide but also methane (CH4), nitrous oxide (N2O), ozone (O3), and fluoride-containing gases that contribute to climate change.
FORBES: EPA Greenhouse Gas Inventory Shows 6 Percent Drop In CO2
Quantities of sewage are poured into it daily, 95% of which is untreated, and it is also a depository for industrial effluents, chemicals from farm runoffs and arsenic and fluoride contamination.
The oxide (which comes from an ore called coltan) is converted to a fluoride using hydrofluoric acid, and the fluoride is then reduced with liquid sodium.
The board's storied history also includes banning lead paint and requiring fluoride to be included in drinking water.
Furthermore a correlation of hydrochemical parameters, such as fluoride concentrations and total dissolved solid contents, with main tectonic structures within the basins was carried out for the whole aquifer system.
Yes I have seen the advocacy for Liquid Fluoride Thorium reactors and there are some apparent tantalizing advantages over current Uranium reactor designs like ability to burn plutonium as a starter fuel, less production of transuranics, higher fuel burn efficiencies, etc.
The health project teaches children how to brush their teeth properly and it includes the use of fluoride toothpaste.
BBC: Tooth decay in children too high, says chief dental officer
My husband and Tom are taking a break, and I'm taking a gamble by forgoing fluoride for a while.
Brewer Larry Crouse and a business partner posed in boxer briefs with the words "No Fluoride in My Beer" across their bare backs.
Portland city leaders say they were spurred toward fluoride when a citizens' group noted rising tooth decay among low-income and minority children.
Made of a material known as polyvinylidene fluoride (PVDF), this belt produces an electric charge whenever low-speed airflow passes over it and causes it to vibrate -- a result of that vaunted piezoelectric effect.
ENGADGET: Piezoelectric system turns your balmy breath into pungent power
应用推荐