伊斯法罕省大气降尘率的评价

IF 1 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Atmosfera Pub Date : 2021-02-10 DOI:10.20937/ATM.52932

F. Motamedi, M. A. Nadoushan, A. Jalalian

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引用次数: 0

摘要

本研究调查了伊斯法罕东部地区和伊朗中部塞格齐平原地区大气粉尘沉降率(DDR)和粉尘重金属浓度的季节和空间变化。从2016年12月到2017年9月，每月从9个不同的地点收集粉尘样本。测定了铅、锌的总浓度。由于降水量少，DDR在冬季最低，在夏季最高。尘载重金属浓度的季节分布表明，几乎所有重金属都遵循秋季-春季-夏季的规律。尘传Pb和Zn的空间分布趋势基本一致，且以西部地区最高。化石燃料、汽车交通和工业活动似乎是导致研究区域粉尘携带重金属的最重要的人为因素。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Evaluating the Rate of Atmospheric Dust Deposition in Isfahan Province

The present study investigates seasonal and spatial variations in atmospheric dust deposition rate (DDR) and the concentration of dust-borne heavy metals in the eastern part of Isfahan as well as Segzi plain located in the central part of Iran. Dust samples were collected from nine different sites on a monthly basis from December 2016 to September 2017. The total concentrations of Pb and Zn were measured. The lowest value of DDR was observed in the winter due to low amount of precipitation, and the highest value was recorded in the summer. Seasonal distribution of the concentration of dust-borne heavy metals revealed that almost all the metals follow the pattern: fall ˃ spring ˃ summer. Spatial distribution of dust-borne Pb and Zn followed almost the same trend and the highest concentrations were observed in the western parts of the study area. It seems that fossil fuel, vehicle traffic, and industrial activities are the most important anthropogenic factors contributing to dust-borne heavy metals in the study area.

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来源期刊

Atmosfera 地学-气象与大气科学

CiteScore

2.20

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： ATMÓSFERA seeks contributions on theoretical, basic, empirical and applied research in all the areas of atmospheric sciences, with emphasis on meteorology, climatology, aeronomy, physics, chemistry, and aerobiology. Interdisciplinary contributions are also accepted; especially those related with oceanography, hydrology, climate variability and change, ecology, forestry, glaciology, agriculture, environmental pollution, and other topics related to economy and society as they are affected by atmospheric hazards.