Lisbon air quality: evaluating traffic hot-spots
by Abel Martins, Mario Cerqueira, Francisco Ferreira, Carlos Borrego, Jorge H. Amorim
International Journal of Environment and Pollution (IJEP), Vol. 39, No. 3/4, 2009

Abstract: This paper presents an air quality study in an urban traffic hot-spot in Lisbon, Portugal, by comparing the atmospheric pollutant concentrations obtained by a numerical model with measured values. Results indicate that the mean variation of particle and gaseous concentrations followed the traffic flow rate, evidencing the occurrence of PM₁₀ concentrations greater than the respective air quality limit. SO₂ and CO results fulfil the national legislation. The performed simulations showed that current methodologies for PM₁₀ dispersion modelling allow to obtain acceptable results on air quality assessment within complex urban areas.

Online publication date: Wed, 23-Sep-2009

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