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2015|16 Annual Report Fraunhofer IGB - A WATER TEST FOR EVERY HOUSEHOLD

119 Staatl. gepr. LM-Chem. Gabriele Beck-Schwadorf Phone +49 711 970-4035 gabriele.beck-schwadorf@ igb.fraunhofer.de Priv.-Doz. Dr. sc. nat. Susanne Bailer Phone +49 711 970-4180 susanne.bailer@igb.fraunhofer.de Contact Project partner AQA GmbH, Vienna, Austria Further information www.wassercheck.org Bacteria in water Pathogens may colonize plumbing if contaminants enter into the pipes from the outside, e.g. due to construction or plumb- ing works, defective pipes or the proximity to agricultural facilities, especially in cases of household wells. An increase in the incidence of fecal or intestinal bacteria, such as Escherichia coli and coliform bacteria that can cause diarrhea, indicates hygiene deficiencies Pseudomonas aeruginosa is a concern in relation to health, even at low bacterial counts, especially for the elderly and babies. Chemical and physical tests Using high-tech, quality-assured chemical and physical ana- lytical methods, we test drinking water for metals and trace elements (lead, cadmium, nickel, copper, aluminum, iron, chromium, molybdenum, lithium), for cations (sodium, potas- sium, calcium, magnesium and anions chloride, fluoride, nitrate, phosphate, sulfate). In addition, tests are also carried out on sample sensory parameters such as odor and turbidity, water hardness and hydrogen carbonate content. Microbiological tests Classical microbiological culture methods are used for the analysis of microbiological parameters pecific bacterial tests identify and quantify coliform bacteria, Escherichia coli, Enterococci and Pseudomonas aeruginosa. The test result is given as so-called colony-forming units (CFU) per 100 mL. 1 External factors such as the quality of plumbing and fittings may also affect water quality. 2 Proportion of 1500 water samples analyzed by Fraunhofer IGB in which thresholds were exceeded. 3 Water analysis in the laboratory. 3 Phone +49711970-4035 Phone +49711970-4180

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