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Background: Given the increasing importance of suspended particles and reporting weather conditions in the amount of ultraviolet radiation in many countries, in this study, the data of the maximum amounts of pollution by suspended particles with the size of 10, 2.5 and1 microns (PM10, PM2.5, PM1) which were reported in 1-hour time-series and Global Ultraviolet Index (UVI) were used to predict the contamination of these pollutants in Zanjan province, Iran.Methods: To provide the approximate level of UVI in the province, map-overlapping technique, map of Iran, and the UV map provided by World Health Organization for different regions of the world were used. To measure suspended particles of the equipment of Environmental Dust Station in Zanjan were used for sampling which was done for an hour every other day from mid-August to mid-September 2014.Findings: According to the map-overlapping technique, UV index was 4-5 in the province which was moderate as matched with the classification of the index of exposure. This finding was in accordance with the data of Iranian comprehensive system of environmental health information. The average one-hour values of suspended particles (PM10, PM2.5 and PM1) were 64.95, 18.60 and 12.67 micrograms per cubic meter for the Zanjan city, respectively.Conclusion: The amount of suspended particle for the Zanjan city was in favorable condition. According to the UV index, the province was in intermediate state. As the value of this index increases in the country from north to south, the province was in a better position than southern provinces.

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