نتایج جستجو برای: water quality in each area

تعداد نتایج: 17260992  

Journal: :Water Air and Soil Pollution 2022

Abstract Decentralized tap water systems are an important drinking source worldwide. A good quality, high-pressure continuous supply (CWS) is always the target of any urban settlement. However, in some areas reported with deteriorated quality even though treated well before supplying. Such deterioration widely from low availability and economically poor countries where supplied intermittently (...

Journal: :مدیریت خاک و تولید پایدار 0
حسین شیرانی دانشگاه ولی عصر مطهره حبیبی دانشگاه ولی عصر اردوان کمالی دانشگاه ولی عصر عیسی اسفندیارپور دانشگاه ولی عصر

the aim of this research was to evaluate some soil physical quality indicators using remotely sensed date, gis and geostatistical methods in baft area that is one of the most important centers of agricultural production in kerman province. therefore, soil samples were collected from 0 to 20cm depth of 183 points based on regular sampling pattern (every 250 meters) and soil physical indicators i...

Journal: :اکو هیدرولوژی 0
ناصر عبادتی استادیار گروه زمین شناسی دانشگاه آزاد اسلامی واحد اسلامشهر سارا سپهوندی کارشناس ارشد زمین شناسی زیست محیطی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

eshtehard aquifers are shoor river's catchment basin and water potential in different areas. eshtehard aquifers, because of the diversity of geological formations and structures have different quality and quantity. this paper aims, to determine the relationship between quantitative and qualitative characteristics of water resources with the lithology and structural geological features of t...

ژورنال: بوم شناسی آبزیان 2016
Ebrahimi, Eisa , Esmaeili, Alireza , Fathi, Pejman , Mirghafari, Norolah ,

In order to investigation of water quality of the Choghakhor wetland by use of WQI, ten stations were selected. Sampling was done every 45 days since April 2010 until March 2011 with 3 replications at each station. Water Quality Index (WQI) was calculated using nine water quality parameters (Nitrate, Nitrite, Alkalinity, Hardness, Turbidity, Conductivity, Dissolved Oxygen, pH and Biochemical Ox...

Journal: :جغرافیا و مخاطرات محیطی 0

1. introduction inflation of population and rising living standards in many countries need to be enhanced the high quality water suitable for different uses such as agricultural, industrial and drinking sections. groundwater is one of the most important water supply sources which are encountered with many problems such as drawdown, recharge reduction due to low rainfall and different natural an...

Journal: :iranian journal of environmental sciences 0
fahima anny department of botany, jahangirnagar university, dhaka-1342, bangladesh mohammad kabir department of environmental sciences, jahangirnagar university, dhaka-1342, bangladesh md. bodrud-doza department of environmental sciences, jahangirnagar university, dhaka-1342, bangladesh

the present study has been conducted to determine the surface water quality of urban area in savar, dhaka, bangladesh by determining some water quality parameters (transparency, temperature, ph, ec, eh, do, tss, tds, ts, bod5, cod, toc, cl-, br-, so4-2, no3-, no2-, po4-3, tp, hco3- and total alkalinity) as well as the status of phytoplankton’s community in the water from two lakes (tiger lake a...

Journal: :global journal of environmental science and management 2016
s. sharma r.c. chhipa

water is a unique natural resource among all sources available on earth. it plays an important role in economic development and the general well-being of the country. this study aimed at using the application of water quality index in evaluating the ground water quality innorth-east area of jaipur in pre and post monsoon for public usage. total eleven physico–chemical characteristics; total dis...

Journal: :desert 2011
a.r. keshtkar m. mahdavi a. salajegheh h. ahmadi a. sadoddin

the relative impacts of different types of land use on the surface water quality are yet to be ascertained and quantified. in this paper, the influence of different types of land use on surface water quality is investigated. rain events samples from different land use in the central plateau, iran, were analyzed for major ions. statistical analyses were employed to examine the statistical relati...

Journal: :journal of arthropod-borne diseases 0
naseh malekei-ravasan department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. abbas bahrami department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. mansoreh shayeghi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. mohamad ali oshaghi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran. masomeh malek department of biology, tehran university, tehran, iran. allahbedasht mansoorian department of parasitology, school of public health, tehran university of medical sciences, tehran, iran.

b a ckground:   eco-faunistic  studies  are  inevitable  step  in  environmental  researches.  aquatic  organisms  like caddisflies are known as biological indicators for water quality assessment and water resource management. they have special role for energy flow in the freshwater habitats as food web and food chain among aquatic creatures. methods: in addition to an extensive literature revi...

Journal: Desert 2019
A. Amini H. Ghaiumi Mohammadi K. Karimian

Hydrological status and water table fluctuations are directly related to land use and/or land cover (LULC) changes in each area. In this research, the impact of LULC changes on groundwater quantity and quality of Khan-Mirza Plain, in the northern Karun watersheds, was investigated. For this purpose, Landsat 5, 7 and 8 satellite images and ETM and OLI sensors were employed to prepare the L...

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