نتایج جستجو برای: chemical quality
تعداد نتایج: 1108446 فیلتر نتایج به سال:
Background and Objective: The aim of this study was to evaluate the chemical and microbial quality of bottled water in Iran and to calculate the water quality index (WQI). Materials and Methods: Different brands of bottled water (4 samples from 71 brands) were randomly collected from the market. Chemical and microbial characteristics of the samples were examined and determined. Finally, the ca...
Ornamental fish keeping is the second most popular hobby in the world, and its popularity is growing every day. The ornamental fish farming industry provides entrepreneurship and income generation opportunities, so it is important to focus on various aspects of ornamental fish farming. Several physical and chemical parameters of water are discussed in this study, including pH, hardness, a...
the effective factors on water quality of seimareh and kashkan rivers in ilam and lorestan provinces
the quality of surface water within a region is mainly influenced by natural processes such as precipitation, soil erosion and weathering, geology, vegetation and anthropogenic activities. the most important factor is geological formation in watershed and water flow path. in this study, the spatial variations of physical and chemical parameters of surface water including ec, sar, cl and tds and...
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