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Sulfur dioxide dispersion and source contribution to receptors of downtown Patras, Greece

  • Research Articles (Subject Area 3: Atmospheric Chemistry and Physics)
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Abstract

Background

The development of the city of Patras, including harbour relocation, in conjunction with the protection of the regional ecosystems, requires air quality assessment and management. For this reason, a model applicable in the Patras area is necessary and valuable. The goal of this study was to validate a model suitable for predicting the dispersion of sulfur dioxide (SO2), based on particular activity, topography and weather conditions.

Methods

We used the US-EPA ISCLT3 integral dispersion model to predict SO2 concentrations for Patras, Greece. We assumed that the major contribution to Patras air pollution came from central heating, harbour and traffic. We calculated traffic emissions using COPERTIII.

Results and Discussion

Assigning suitable values of the mixing height, the model predicted the local and spatial distribution of the mean monthly SO2 concentrations in downtown Patras, as well computed the contribution of the SO2 emissions originating from each particular source at each receptor location on a seasonal and annual basis. The comparison between predictions and measurements shows that the model performance for estimating the SO2 concentrations and period pattern is satisfactory.

Conclusion

The mixing height was the critical parameter for calibrating the model. Model validation promises satisfactory predictions for SO2 pollution levels on monthly basis.

Recommendations and Outlook

The model could be used in predicting SO2 concentrations and source contribution for several downtown Patras receptors using pertinent meteorological and emission information. It could be also extended to predict the dispersion of other primary air pollutants. The calibrated model predictions could be used to fill gaps in monitoring data, saving money and time, and help in assess and manage air quality as Patras develops.

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Authors and Affiliations

  1. Environmental Engineering Laboratory, Civil Engineering Department, University of Patras, 265 00, Patras, Greece

    Panayotis C. Yannopoulos

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  1. Panayotis C. Yannopoulos
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Correspondence to Panayotis C. Yannopoulos.

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Yannopoulos, P.C. Sulfur dioxide dispersion and source contribution to receptors of downtown Patras, Greece. Env Sci Poll Res Int 14, 172–175 (2007). https://doi.org/10.1065/espr2006.06.319

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  • DOI: https://doi.org/10.1065/espr2006.06.319

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