Document Type : Original Article
Authors
1
Department of Arid and Desert Regions Management, Yazd University, Yazd, Iran
2
Department of Arid and Desert Regions Management, University of Yazd, Yazd, Iran
3
Department of Environment, University of Yazd, Yazd, Iran
Abstract
Mining, as one of the desertification activities, plays a vital role in many countries, The aim of the present study was to investigate the dusting potential, emission and dispersion of PM10 from the tailings surfaces of Mehdiabad lead and zinc mine in Yazd province on the days of wind erosion. For this purpose, with field visits and laboratory measurements, the required information of SWEEP wind erosion model and AERMOD model were prepared. The results showed that the highest rate of soil loss, creeption and saltation, PM10 in the 3/1/2020 were from dolomite 1 (1.96), oxide (0.32), dolomite 2 (1.65), and oxide (0.088 kg) tailings, respectively. On 11/9/1397, the order of these parameters is for tailings of dolomite one (2.66), dolomite two (0.149), dolomite one (2.26) and dolomite one (0.128 kg). On 29/1/2019, the order of these parameters is for tailings of dolomite 1 (2.66), dolomite 2 (0.149), dolomite 1 (2.26) and dolomite 1 (0.128 kg). The results of particle dispersion showed that the maximum concentrations of PM10 simulated at 1, 8 and 24 hour on 3/1/2020 were 6219, 1542 and 620 μg/m3 and on day 29/1/2019 were 1169, 394 and 141 μg/m3, respectively.
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