Current Status and Future Forecast of Short-lived Climate-Forced Ozone in Tehran, Iran, derived from Ground-Based and Satellite Observations

verfasst von
Faezeh Borhani, Majid Shafiepour Motlagh, Amir Houshang Ehsani, Yousef Rashidi, Masoud Ghahremanloo, Meisam Amani, Armin Moghimi
Abstract

In this study, the distribution and alterations of ozone concentrations in Tehran, Iran, in 2021 were investigated. The impacts of precursors (i.e., CO, NO

2, and NO) on ozone were examined using the data collected over 12 months (i.e., January 2021 to December 2021) from 21 stations of the Air Quality Control Company (AQCC). The results of monthly heat mapping of tropospheric ozone concentrations indicated the lowest value in December and the highest value in July. The lowest and highest seasonal concentrations were in winter and summer, respectively. Moreover, there was a negative correlation between ozone and its precursors. The Inverse Distance Weighting (IDW) method was then implemented to obtain air pollution zoning maps. Then, ozone concentration modeled by the IDW method was compared with the average monthly change of total column density of ozone derived from Sentinel-5 satellite data in the Google Earth Engine (GEE) cloud platform. A good agreement was discovered despite the harsh circumstances that both ground-based and satellite measurements were subjected to. The results obtained from both datasets showed that the west of the city of Tehran had the highest averaged O

3 concentration. In this study, the status of the concentration of ozone precursors and tropospheric ozone in 2022 was also predicted. For this purpose, the Box-Jenkins Seasonal Autoregressive Integrated Moving Average (SARIMA) approach was implemented to predict the monthly air quality parameters. Overall, it was observed that the SARIMA approach was an efficient tool for forecasting air quality. Finally, the results showed that the trends of ozone obtained from terrestrial and satellite observations throughout 2021 were slightly different due to the contribution of the tropospheric ozone precursor concentration and meteorology conditions.

Organisationseinheit(en)
Ludwig-Franzius-Institut für Wasserbau, Ästuar- und Küsteningenieurwesen
Externe Organisation(en)
University of Tehran
Shahid Beheshti University
University of Houston
Typ
Artikel
Journal
Water, Air, & Soil Pollution
Band
234
ISSN
0049-6979
Publikationsdatum
15.02.2023
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Gewässerkunde und -technologie, Ökologische Modellierung, Umweltverschmutzung, Environmental engineering, Umweltchemie
Ziele für nachhaltige Entwicklung
SDG 13 – Klimaschutzmaßnahmen, SDG 11 – Nachhaltige Städte und Gemeinschaften
Elektronische Version(en)
https://doi.org/10.1007/s11270-023-06138-6 (Zugang: Geschlossen)