Today, advanced industries have a significant impact on growth and development in the societies. However, the construction and operation of these industries will lead to changes in the environment of adjacent areas. Given the importance of this industry and its growth in developing countries such as Iran, to reach the ultimate goal, which is to achieve sustainable development, communities requires the consideration of all environmental aspects of industrial projects. Khorasan Steel Complex is located in Neyshabour plain in the North East of Iran that is one of the most populated plains in Khorasan Razavi Province. This Complex with an annual production of approximately 2 million tons of steel, air pollutants, wastewater, solid wastes such as slag and dust from furnaces, has the ability of affecting the adjacent environment. In this study, according to different production units of Khorasan Steel Complex and emissions created by each unit, environmental impacts of complex activities have been investigated. Among all the environmental impacts of the complex, the most negative effects can be mentioned as air pollution, excessive consumption of ground water in the area with poor water sources and the high volume of dumped slag

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