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Air Quality Part 3

Tham khảo tài liệu 'air quality part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Development and application of a methodology for designing a multi-objective and multi-pollutant air quality monitoring network for urban areas 43 models. It simultaneously considers an exceedance score and a population factor. A statistical analysis is used for optimization. The methodology is applied to design a NO2 CO and PM10 monitoring network for the city of Buenos Aires considering a spatial resolution for the emission inventory and model estimations of 1 x 1km. Air pollutant concentrations in the city have been estimated using the DAUMOD and AERMOD atmospheric dispersion models that evaluate the contribution of area and point sources respectively. The optimal alternative of the proposed network can be summarized as a seven locations for monitoring NO2 CO and PM10 b two sites for NO2 and CO c one location for CO and PM10 and d one station for NO2 only. The spatial representativeness of mean concentrations at monitoring sites varies with each pollutant a for NO2 between 1-7km2 b for CO between 2-11km2 and c for PM10 between 4-12km2. It must be noted that the ultimate decision in site selection is left to the air quality monitoring authority. Future studies could be focused on a the evaluation of how sensitive is the proposed methodology for air quality network design to slight changes in the input data e.g. the weighing factors the spatial resolution and b the inclusion of other optimization objectives e.g. land use frequency of violations of air quality standards protect damage to vulnerable receptors as historic and or artistic valuable property . 6. References Ainslie B. Reuten C. Steyn D.G. Le N.D. Zidek J.V. 2009 . Application of an entropybased Bayesian optimization technique to the redesign of an existing monitoring network for single air pollutants. Journal of Environmental Management Vol. 90 pp. 2715-2729. Arya S. P. 1999 . Air Pollution Meteorology. Oxford University Press. New York Baldauf R. Wiener R.W. Heist D.K. 2002 . Methodology for Siting .