Comparison of concentration and trend of dust particles in relation to climatic variables in the western half of Iran
Subject Areas : Air PollutionNahid Mahmoodi Mahpash 1 , Babak Souri 2
1 - M.Sc., Environmental Sciences and Engineering, University of Kurdistan, Kurdistan, Iran
2 - Associate Professor, Department of Environment, Faculty of Natural Resources, University of Kurdistan, Kurdistan, Iran
Keywords: Dust Concentration, Climate Change, western half of Iran,
Abstract :
Background and Purpose: Today one of the issues and essential crises of human societies is incidence of dust phenomenon. Therefore, in researches, the dust concentration has been compared in relation to climatic variables in Sanandaj, Khoramabad and Andimeshk cities located in different geographical areas in the western half of Iran.Material and Methodology: Inactive sampling was done for measuring dust density. Menkendal test and Pierson cohesion were done for assessment of changes process and their relation with some meteorology parameters.Results: Results showed that the most average density of dust in Sanandaj, Khoramabad and Andimeshk cities were (1.45±0.48, 1.14±0.84 & 1.65±1.07) mg to m2. Checking changes process of dust density showed that Sanandaj station has decreasing process in meaningful level 95 percent (P-value=0.047) between different station. Results of cohesion assessment among dust amounts in 3 stations with metrology parameters showed that in Sanandaj station there was positive relation between dust density and temperature average (p < 0.05, r = 0.61), but there was negative relation between dust density with comparative damp (p < 0.05, r = 0.71) and downfall (p < 0.05, r = 0.61) In Khoramabad (p < 0.05, r = 0.61) and Adimeshk (p < 0.001, r = 0.72) stations there was positive and meaningful relation between dust density and wind speed. Discussion and Conclusion: By these findings it can be concluded that dust amounts in different areas depends on geographical condition, topography requirements, continental, metrology parameters and also their origins are various.
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