A Predictive Model for Steady State Ozone Concentration at an Urban-Coastal Site

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Alghamdi , M A , Al-Hunaiti , A , Arar , S , Khoder , M , Abdelmaksoud , A S , Al-Jeelani , H , Lihavainen , H , Hyvärinen , A , Shabbaj , I I , Almehmadi , F M , Zaidan , M A , Hussein , T & Dada , L 2019 , ' A Predictive Model for Steady State Ozone Concentration at an Urban-Coastal Site ' , International Journal of Environmental Research and Public Health , vol. 16 , no. 2 , 258 . https://doi.org/10.3390/ijerph16020258

Title: A Predictive Model for Steady State Ozone Concentration at an Urban-Coastal Site
Author: Alghamdi, Mansour A.; Al-Hunaiti, Afnan; Arar, Sharif; Khoder, Mamdouh; Abdelmaksoud, Ahmad S.; Al-Jeelani, Hisham; Lihavainen, Heikki; Hyvärinen, Antti; Shabbaj, Ibrahim I.; Almehmadi, Fahd M.; Zaidan, Martha A.; Hussein, Tareq; Dada, Lubna
Contributor: University of Helsinki, Global Atmosphere-Earth surface feedbacks
University of Helsinki, Institute for Atmospheric and Earth System Research (INAR)
University of Helsinki, INAR Physics
Date: 2019-01-02
Language: eng
Number of pages: 10
Belongs to series: International Journal of Environmental Research and Public Health
ISSN: 1660-4601
URI: http://hdl.handle.net/10138/300125
Abstract: Ground level ozone (O-3) plays an important role in controlling the oxidation budget in the boundary layer and thus affects the environment and causes severe health disorders. Ozone gas, being one of the well-known greenhouse gases, although present in small quantities, contributes to global warming. In this study, we present a predictive model for the steady-state ozone concentrations during daytime (13:00-17:00) and nighttime (01:00-05:00) at an urban coastal site. The model is based on a modified approach of the null cycle of O-3 and NOx and was evaluated against a one-year data-base of O-3 and nitrogen oxides (NO and NO2) measured at an urban coastal site in Jeddah, on the west coast of Saudi Arabia. The model for daytime concentrations was found to be linearly dependent on the concentration ratio of NO2 to NO whereas that for the nighttime period was suggested to be inversely proportional to NO2 concentrations. Knowing that reactions involved in tropospheric O-3 formation are very complex, this proposed model provides reasonable predictions for the daytime and nighttime concentrations. Since the current description of the model is solely based on the null cycle of O-3 and NOx, other precursors could be considered in future development of this model. This study will serve as basis for future studies that might introduce informing strategies to control ground level O-3 concentrations, as well as its precursors' emissions.
Subject: chemical coupling
nitrogen oxides
ozone
weekend effect
GROUND-LEVEL OZONE
SURFACE OZONE
METEOROLOGICAL PARAMETERS
TROPOSPHERIC OZONE
AIR-POLLUTION
NOX
AREA
REGRESSION
CITY
ATMOSPHERE
1172 Environmental sciences
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