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Investigation and Measurement of Heavy Metals Amount (As, Pb, Cd, Hg) within Rivers Estuaries Located in the West Side of Urmia Lake Original Article, D35 Esmat Saatloo SJ, Esmat Saatlo M, Siosemarde M, Merufinia E. J. Civil Eng. Urban. 4(3): 233-238. 2014 ABSTRACT: The ecosystem of Urmia Lake is almost close ended and the water of rains and rivers play an important role in Biological activities of this lake. It is worth stating that the national park of Urmia Lake is almost one of the rare one in world class, since the watery environment of this park is so salty and the only living being which could survive in this lake is named Artemia. Since this park has special natural condition and various ilks of ecosystems, it can be considered one of best domicile for numerous kinds of birds and prominent national park of Iran. Although for now, the West Azerbaijan province is not among the geographical regions of Iran that lead to production of pollution and the extension of industrial activities in this region still do not pollute the watery regions, but the amount of pollution in this area is moving toward pick points and if no measurement is taken in order to control the industrial activities and other polluters, the water source of this province will face with a serious ecological crisis. The rivers that flow into the Urmia Lake have a mineral load, since the urban, agriculture and rural sewage pour into these rivers. This survey aims at identifying the amount of pollution, polluters, self-purification capacity of rivers and offering a solution for resolving the pollution issue, especially when the water level of Urmia Lake is decreased, which lead us to consider polluters and their effects. Keywords: Urmia Lake, Ecosystem, Sewage, Heavy Metals, Artemia, Environment. منبع: [Hidden Content] دانلود: [Hidden Content].,%204%20(3)%20233-238,%202014.pdf J. Civil Eng. Urban., 4 (3) 233-238, 2014.pdf

Investigation of Dam Construction Effects without Environmental Assessment (Case Study: Urmia Lake) Original Article, C32 Majediasl M, Sangi A. Journal. Civil Eng. Urban. 3(4):201-206. 2013 ABSTRACT:Feedbacks on numerous harmful problems in the environment have caused appearance of some human society’s sensitivity about the range of human’s non-limited activities in the environment which are done without considering environmental limitations during the economic development process in the recent decades. If environmental problems, along with technical and economic justifications are not considered, activities related to the water resources development program will result in irreparable and undesirable consequences. Drying up of the lake due to irregular exploitation of catchment basin water resources and construction of several dams on the branches of its rivers without environmental assessments have led to increase in the region’s temperature, appearance of sand and salt storms, destruction of potential agricultural land, flooding, change in cultivation pattern, hence jeopardizing the life of region’s people. Because of these, Natural ecosystems existing around the lake have been changed remarkably, and animates’ habitat in the lake is going to be destroyed. So, it is necessary to carry out an accurate evaluation before implementing water resources projects during the investigation of economic and technical justifications, so that any exploitation of nature can be done in the framework of the capabilities and potentials of natural environment. In this paper, we present some approaches to fight against undesirable consequences of dam construction, investigating environmental changes in Urmi a Lake. Keywords: Water Resources Development, Dam, Environment, Urmia Lake منبع: [Hidden Content] دانلود: [Hidden Content].,32-201-206.pdf J. Civil Eng. Urban.,32-201-206.pdf

Analysis of relative Flows in the Catchments without Gauging Station; Case Study: West of Urmia Lake Basin Original Article, A8 Azhdan, Y., Majedi-Asl, M., Daneshfaraz, R. Journal. Civil Eng. Urban. 1(1): 53-56. 2011. ABSTRACT: An important factor for designing soil and water projects is the estimation of annual runoff volume at project location, with no precise runoff data. One common method for estimation of the runoff is through meteorological parameters and physical characteristics of the region. The present paper attempts to complete the statistics from partial stations via linear regression and the randomness of the data was tested by the RUNTEST test and its results were satisfactory. Modeling relative annual and monthly runoffs in Iran is an essential task for precise planning of water projects engineering in catchments without hydrologic statistics and data. One important factor to be considered in understanding the catchments' hydrologic behavior is investigation of output currents in different time periods of daily, monthly, and annual scales. Thus, this study attempts to use multivariate linear regression to provide a decent model for estimation of annual runoff for the catchments of the Nazloo-Cahi, Barandooz-Chai, Shahr-Chai and Roze-Chai Rivers in the west of Urmia Lake. Keywords: Watershed, Annual Runoff, Rainfall, Physical Characteristics, Multivariate Regression, Urmia Lake منبع: [Hidden Content] دانلود: [Hidden Content],.pdf JCEU-A8,.pdf