Origin of dust pollution particulate matter less than 2. 5 micron in Mashhad city using HYSPLIT and DREAM8b model

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BAGHERI FATEMEH; Rezayi Mehri

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2021 | Volume:14 | Issue:1 Page(s): 129-146

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Information Journal Paper

Title

Origin of dust pollution particulate matter less than 2. 5 micron in Mashhad city using HYSPLIT and DREAM8b model

Author(s)

BAGHERI FATEMEH | Rezayi Mehri | Issue Writer Certificate

Keywords

Dust particlesQ1

MashhadQ1

HYSPLITQ1

DREAM8bQ1

OriginQ1

Abstract

Background and Objective: The aim of this study was to investigate dust Origin particulate (PM2. 5) in Mashhad city in a long period of time (2014-2019) based on unhealthy days. Furthermore, changes in meteorological parameters and their relationship with dust storms have also been investigated. Materials and Methods: In order to locate dust pollution hotspots in Mashhad air, first, information about unhealthy days of Mashhad city in a 5-year period was obtained from the site of Mashhad Pollutants Monitoring Center and then HYSPLIT model was used to locate air pollution hotspots caused by particulate matter. To verify the results, the outputs obtained from this model were also compared with the DREAM8b model. Results: By examining the meteorological parameters and its relationship with the outputs obtained from THEHYSPLIT and DREAM8b models, the maximum wind speed and relative humidity were obtained in autumn. There was no rainfall in the studied days (19 days) and the highest temperature was related to summer, indicating the relationship between the occurrences of polluted days due to particulate matter less than μ 2. 5, wind speed and relative humidity in autumn. The results of the two models showed that the southern and northeastern regions of Mashhad city had the highest source of Dust particles during the studied days. Conclusion: Although in previous articles, the Origin of dust in Mashhad city was announced outside the geographical boundaries of the province, long-term investigation at low altitude (below 10m) showed that local Origin of dust have an essential role in air pollution in Mashhad city under unstable atmospheric conditions. Inappropriate use of agricultural lands and severe changes in land use often in the northern region and implementation of construction projects such as the southern belt of Mashhad city play essential roles in increasing PM2. 5 particles in the air of Mashhad. This finding shows the importance of decision making for the implementation of soil stabilization projects etc. . . at the local level.

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References

Forecasting land-use changes in Mashhad Metropolitan area using Cellular Automata and Markov chain model for 2016-2030

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APA: Copy

BAGHERI, FATEMEH, & Rezayi, Mehri. (2021). Origin of dust pollution particulate matter less than 2. 5 micron in Mashhad city using HYSPLIT and DREAM8b model. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 14(1 ), 129-146. SID. https://sid.ir/paper/409812/en

Vancouver: Copy

BAGHERI FATEMEH, Rezayi Mehri. Origin of dust pollution particulate matter less than 2. 5 micron in Mashhad city using HYSPLIT and DREAM8b model. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2021;14(1 ):129-146. Available from: https://sid.ir/paper/409812/en

IEEE: Copy

FATEMEH BAGHERI, and Mehri Rezayi, “Origin of dust pollution particulate matter less than 2. 5 micron in Mashhad city using HYSPLIT and DREAM8b model,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 14, no. 1 , pp. 129–146, 2021, [Online]. Available: https://sid.ir/paper/409812/en

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