By Lidia Razowska-Jaworek
Calcium and magnesium are plentiful in groundwater, however the position of groundwater because the crucial resource of those very important foodstuff is especially usually ignored. Hydrogeochemical experiences are targeted mostly on distribution and behavior of elements that reason deterioration of water caliber, akin to: nitrate, nitrite or iron, manganese. for this reason, newest books and papers focus ordinarily on those water elements and just a small variety of papers describe result of groundwater experiences on priceless water parts as calcium or magnesium. Calcium and magnesium are of serious value to human wellbeing and fitness and insufficient consumption of both nutrient can impair health and wellbeing. the most aim of this IAH chosen Papers ebook is to provide the result of the reports on calcium and magnesium in groundwater in addition to their value for human healthiness. The chapters during this e-book are written by means of hydrogeologists and hydrochemists in addition to doctors and comprise: equipment of research of calcium and magnesium in groundwaters, distribution and behavior of calcium and magnesium in several aquifers, calcium and magnesium in bottled mineral and spring waters, importance of calcium and magnesium in waters for human health. Read more...
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Extra info for Calcium and magnesium in groundwater : occurrence and significance for human health
Groundwater was sampled at 257 locations across Serbia, including groundwater resources featuring low and high Total Dissolved Solids (TDS). The sampling network was designed to cover the entire territory of Serbia evenly and address groundwater occurrences in different rocks (igneous, metamorphic and sedimentary), and consequently different types of aquifers. The sampling points included springs, boreholes and wells. Sampling was conducted in accordance with the Drinking Water Sampling and Laboratory Analysis Rulebook (Official Gazette of the SFRY, no.
06 mg/l, which was the highest average Mg concentration among the provinces. Two groups of groundwater occurrences in the Vardar Zone can be identified: (1) groundwater occurrences with Mg concentrations up to MAC (50 mg/l), or up to the average Mg concentration for this province, generally related to limestones and influence by flysch formations, schists and Neogene sediments, and (2) 20 groundwater occurrences whose Mg concentrations were in excess of 50 mg/l, where as many as seven samples had Mg concentrations above 100 mg/l, and two samples were in excess of 300 mg/l.
The different waters were then forced through these hard rock samples inside a pressure cell for about 6 months. 6 × 10−19 m2) transport is along joints and fractures. 3). In all experiments specific Electric Conductivity (EC), pH values and concentrations of Ca2+, (Mg2+) and HCO3− were measured before and after the tests to measure dissolution effects and calculate saturation indexes and maximum solubility for the different minerals by the PC-code PhreeqC. 3 Experimental setup of the pressure cells and detailed view of a cut rock sample.