Evaluation of surface ozone measurements during 2000-2005 at a rural area in the upper Spanish plateau

This paper presents the main experimental results of surface ozone concentrations measured at a rural area in Northern Spain from February 2000 to December 2005. Daily and seasonal variation of ozone has been analysed. The peak concentration levels are obtained in the afternoon, mean value around 88...

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Bibliographic Details
Published in:Journal of atmospheric chemistry 2008-06, Vol.60 (2), p.137-152
Main Authors: Sánchez, M. L, García, M. A, Pérez, I. A, de Torre, B
Format: Article
Language:English
Subjects:
Air quality
Air temperature
Applied sciences
Atmospheric chemistry
Atmospheric pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Atmospheric Sciences
Chemical composition and interactions. Ionic interactions and processes
Earth and Environmental Science
Earth Sciences
Earth, ocean, space
Emission measurements
Exact sciences and technology
External geophysics
Meteorology
Ozone
Ozone formation
Ozone trend
Pollutants physicochemistry study: properties, effects, reactions, transport and distribution
Pollution
Rural areas
Rural site
seasonal variation
Seasonal variations
Spring
Summer
Troposphere
Tropospheric ozone
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Summary:This paper presents the main experimental results of surface ozone concentrations measured at a rural area in Northern Spain from February 2000 to December 2005. Daily and seasonal variation of ozone has been analysed. The peak concentration levels are obtained in the afternoon, mean value around 88 μg m⁻³, with extreme average values of 59 μg m⁻³ in January and 113 μg m⁻³ in July. Small differences are found in the mean and median of the ozone levels from April to August, when spring and summer maxima are observed. Despite the great inter-annual ozone variability obtained, most air quality indicators showed a positive trend. Further analysis of the monthly mean ozone concentrations of the main percentiles have also been performed using a harmonic model. The upward trend was 6.2 ± 1.7 μg m⁻³ for the 98th percentile. To interpret the main features of the annual cycle and describe the ozone peaks, the influence of meteorological factors is studied. In summer, ozone production is governed by local processes, air temperature being the major controlling factor. However, the origin of the spring maximum is not so well identified.
ISSN:0167-7764
1573-0662
DOI:10.1007/s10874-008-9113-2