印度国家天然气输送公司Ahar –Duzduzan在伊朗的西部北部输送新鲜天然气。根据伊朗的环境法规，管道的建设和运行需要进行环评研究。由于这是一个线性项目，因此需要对这类项目制定一个特定的环评方法。因此，我们首先尝试通过图书馆和实地研究来真正了解项目的环境尾注。在审查项目的技术资源的同时，试图确定所有的建设和运营活动。最后选择了说明性清单和简化矩阵两种方法进行环境影响评价。在构建阶段，19个微活动在12个环境因素(在不同的环境中)面前进行了评价。在建设阶段，活动如;开挖、路堤和开挖对区域整体环境的负面影响最大。 And the most important activity with positive effects on the aforementioned factors is manpower recruitment. Also In the operation phase 15 micro activities have evaluated in front of about 15 environmental factors (in the various environments). In the Operation phase activities such as; grazing, vehicle traffic and wastewater production can have negative effects. Most positive impacts on environmental factors are revenue and welfare, employment levels, commerce and manning activities, immigration control and air quality. Most of the Operation phase effects are positive which involve; exploitation of gas or natural gas transportation and gas pipeline monitoring. According to the developed methodology it is necessary to use RS and GIS tools in the study current environment situation, routing  environmental alternatives and make land use maps of transmission path. With regard to all issues presented in explanatory checklist of this project and also previous clauses from the standpoint of environmental compliance provisions there isn’t any problem for implementation.