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چکیده
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Dustfall particles has been a dominant phenomenon in western Iran during recent years, which has a wide range of negative impacts on western half of the nation’s territories. Hence, study on characteristics of this phenomenon including elemental properties of those dustfall particles, which are bigger than 10µm regarding their higher potential to remain in human living environment, may help us to plan for pre-emptive measures against its damages. This study focuses on the relationships of calcium, sodium, potassium and magnesium concentration in dustfall particles having a size of >10µm to meteorological variables including temperature, relative humidity, air pressure and wind speed. For this purpose three cities of Sanandaj, Khorramabad and Andimeshk were decided as sampling sites, where dustfall particles (>10µm) were sampled using Deposit Gauge Method during three months of summer from Tir 1st, 1391 (Iranian calendar) for 10 days intervals. The samples were processed and extracted to measure concentration of above mentioned elements through Atomic Absorption Spectroscopy. Meteorological data were also obtained through Iranian meteorological organization archive. The results showed that the strongest relationships between sodium concentration and air pressure (r= -0.804, α= 0.05) for Sanandaj, between calcium concentration and wind speed (r=0.728, α= 0.05) for Khorramabad and between magnesium concentration and relative humidity (r=0.-0.741, α= 0.05).
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