Background and Objective: The urban location with the use of GIS in urban planning is very important. Commercial usage is one the most important urban usage wich affects other urban activities. It is worth noting that people are actively deal with space and always with the business and related information. Individual placement in a convenient location from an environmental perspective and getting it by all senses will be able to actively respond to the environment and it will draw the attention to the environment. Due to the remoteness of the hospitals, railway stations and close to natural areas such as parks, subjective factors such as the appearance of intimacy, originality and vitality affected and will affect the ability to invite people. Method: In this regard, appropriate measures to study the documents formulation and using the AHP model value of each criterion, relative to other criteria determined and to each of the relevant criteria weights. Finally, the resulting weights in layers of criteria and multiplication using fuzzy compounds layers were combined. Results: Integrated data showed that the 2 with more favorable situation than the 1 and the area as well as with situation better than 3 areas with different importance is the best place to create trade center. Conclusion: Region 17 of Tehran withpopulation of more than 358 thousands suffers from adequate access to 3 district municipality and this matter makes the costs of access to urban services increase. Therefore, this study explains appropriate indicators and geographic information systems to locate suitable commercial places in the region in each explained municipal areas which have been chosen for the establishment.

Background and Objective: Due to the high potential of Hamedan city for agricultural products and subsequentlly effects of urban wastewaters and agricultural activities such as the use of fertilizers and chemical pesticides on soil quality, plant, and human health, performing this research was necessary. This research was done by purpose of investigating the effect of wastewater on accumulation of metals Pb and Cd in soil and vegetables. Method: For this purpose, sampling from soil and vegetables was performed randomly in the city of Hamedan. Sampling was done in an area irrigated with well water and in an area irrigated with wastewater. Vegetable Samples were prepared after washing and drying, powdered and prepared for experiment. Also soil samples after air-drying, sieve, and prepared for experiment. Then samples digested with acid mixture and heavy metals measured by Atomic Adsorption Spectroscopy (AAS). Finally obtained data were analyzed by SPSS 20. Findings: Results showed that wastewater had important effect on accumulation of Pb and Cd in soil and vegetables which means concentration of these metals in the soil and vegetables that was irrigated with wastewater was higher than those irrigated with well water. Also this is identified that the concentrations of Pb and Cd in studied vegetables was higher or equal to standards and Cd in the soil of both control and treatment were or equal to standards but Pb were lower than standards. Discussion and Conclusion: Since, in the treatment area, the mean concentration of Cd in scallion vegetable and mean concentration of Pb in leek vegetable is higher than standard. Therefore, in order to prevent creating problems for citizens’ health, irrigation of fields by wastewater must be prevented.