Introduction: Current legislation permits a phased achievement of drinking water quality standards by making decisions on temporary deviations from hygienic for the period design, construction, and/or upgrade supply facilities. Objective: To substantiate mechanism coordinating concentrations certain chemicals in implementing measures improvement. Materials and methods: We applied methods sanita...

There are many analytical and sensory methods to analyze drinking water for flavor and off-flavors before it reaches consumers. Flavor profile analysis (FPA) is one of the most comprehensive methods. A well-trained panel is essential for FPA and although taste standards are well established, FPA training lacks an odor reference standard. In search of an odor reference standard, four different p...

Agricultural pesticides (i.e., insecticides, herbicides, and fungicides) represent a threat to drinking water quality and aquatic life within agricultural streams. Many agricultural streams serve as source waters for urban drinking water supplies within the Midwestern United States. Transport of pesticides from upstream agricultural streams to downstream drinking water supplies can result in an...

fluoride is one of the most important elements in the composition of teeth and bones. this element can enter the body via different ways. however, drinking water is the most important way to receive fluoride by a lot of people. an increase in fluoride level in the body causes dental fluorosis and its absence leads to teeth decay. standard rate of fluoride in drinking water is determined by the ...

New criteria (full physiological value and preservation of the properties of drinking water) are scientifically substantiated. Also discussed are indices (minimal admissible and optimal levels of basic water mineralization and calcium content, standards of microelements such as boron and bromine content, content of individual groups of microorganisms, water temperature) for evaluating the quali...

Background and Purpose: Fluoride is a natural element essential for human nutrition due to its  benefits for dental enamel. It is well-documented that standard amounts of fluoride in drinkingwater can decrease the rate of dental caries. This study was conducted with the aim of measuring fluoride concentration of drinking-water supplies and urban distribution system in Qom, I...

The United States Public Health Service set an interim standard of 50 microg/l in 1942, but as early as 1962 the US Public Health Service had identified 10 microg/l as a goal which later became the World Health Organization Guideline for drinking water in 1992. Epidemiological studies have shown that about one in 10 people drinking water containing 500 microg/l of arsenic over many years may di...