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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2017, Volume 68, Issue 4, 824-829

https://doi.org/10.37358/RC.17.4.5560

Cornel Ianache, Laurentiu Predescu, Mirela Predescu, Dumitru Dumitru

Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment

Abstract:

The serious air pollution problem has determined public concerns, worldwide. One of the main challenges for countries all over the world is caused by the elevated levels of ground-level ozone (O3) concentrations and its anthropogenic precursors. Ploiesti city, as one of the major urban area of Romania, is facing the same situation. This research aims to investigate spatial and temporal distribution characteristics of O3 in relationship with nitrogen oxides (NOx) using statistical analysis methods. Hourly O3 and NOx measurements were collected during 2014 year in Ploiesti. The results obtained showed that the ozone spatial distribution was non-normal for each month in 2014. The diurnal cycle of ground-level ozone concentrations showed a mid-day peak, while NOx diurnal variations presented 2 daily peaks, one in the morning (7:00 a.m.) and one in the afternoon (between 5:00 and 7:00 p.m.). In addition, it was observed a distinct pattern of weekly variations for O3 and NOx. Like in many other urban areas, the results indicated the presence of the “ozone weekend effect” in Ploiesti during the 2014 year, ozone concentrations being slightly higher on weekends compared to weekdays. For the same monitoring site, the nitrogen oxides were less prevalent on Saturdays and Sundays, probably due to reducing of road traffic and other pollution-generating activities on weekends than during the week.
Keywords:
nitrogen oxides; ozone; weekend effect; time series analysis

Issue: 2017, Volume 68, Issue 4
Pages: 824-829
Publication date: 2017/5/15
https://doi.org/10.37358/RC.17.4.5560
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
IANACHE, C., PREDESCU, L., PREDESCU, M., DUMITRU, D., Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment, Rev. Chim., 68(4), 2017, 824-829.

Vancouver
Ianache C, Predescu L, Predescu M, Dumitru D. Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment. Rev. Chim.[internet]. 2017 Apr;68(4):824-829. Available from: https://doi.org/10.37358/RC.17.4.5560


APA 6th edition
Ianache, C., Predescu, L., Predescu, M. & Dumitru, D. (2017). Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment. Revista de Chimie, 68(4), 824-829. https://doi.org/10.37358/RC.17.4.5560


Harvard
Ianache, C., Predescu, L., Predescu, M., Dumitru, D. (2017). 'Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment', Revista de Chimie, 68(4), pp. 824-829. https://doi.org/10.37358/RC.17.4.5560


IEEE
C. Ianache, L. Predescu, M. Predescu, D. Dumitru, "Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment". Revista de Chimie, vol. 68, no. 4, pp. 824-829, 2017. [online]. https://doi.org/10.37358/RC.17.4.5560


Text
Cornel Ianache, Laurentiu Predescu, Mirela Predescu, Dumitru Dumitru,
Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment,
Revista de Chimie,
Volume 68, Issue 4,
2017,
Pages 824-829,
ISSN 2668-8212,
https://doi.org/10.37358/RC.17.4.5560.
(https://revistadechimie.ro/Articles.asp?ID=5560)
Keywords: nitrogen oxides; ozone; weekend effect; time series analysis


RIS
TY - JOUR
T1 - Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment
A1 - Ianache, Cornel
A2 - Predescu, Laurentiu
A3 - Predescu, Mirela
A4 - Dumitru, Dumitru
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2017
VL - 68
IS - 4
SP - 824
EP - 829
UR - https://doi.org/10.37358/RC.17.4.5560
KW - nitrogen oxides
KW - ozone
KW - weekend effect
KW - time series analysis
ER -


BibTex
@article{RevCh2017P824,
author = {Ianache Cornel and Predescu Laurentiu and Predescu Mirela and Dumitru Dumitru},
title = {Considerations on Ambient Levels of Ozone Concentrations and Relationship with NOx in an Urban Environment},
journal = {Revista de Chimie},
volume = {68},
number = {4},
pages = {824-829},
year = {2017},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.17.4.5560},
url = {https://revistadechimie.ro/Articles.asp?ID=5560}
}
 
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