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In this paper, remote sensing and GIS have been used to assess the status of NO at the south west of Iran. 221 data about concentration of NO was extracted from Ozone Monitoring Instrument. Ordinary kriging and inverse distance weighting interpolation methods was used to interpolate data. Results showed that ordinary kriging method using cross-validation have had less error. North east of the study area has the highest concentration of NO (329 molecule/cm) and the concentration of NO decreases from north east to South west of the study area. On the other hand, data trend results showed that the data seems to exhibit a fairly strong trend in the east west direction and a weaker one in the north-south direction. [ABSTRACT FROM AUTHOR]