Author(s)

S. Cernuschi, M. Giugliano, G. Lonati & F. Marzolo

Abstract

Indications for the intervention strategies to be included in the context of air quality remediation plans for Milan metropolitan area are obtained by evaluat- ing 5 years of hourly CO concentration data. The work reports on the analysis of standard exceedances and concentration time trends and on the development of empirical statistical models for describing relationships between annual con- centration averages and air qu'ality related parameters (number of standard ex- ceedances, extreme percentiles of hourly concentration distributions). The models are applied, in combination with simple roll back equations, for the evaluation of emission reduction required for standards attainment. Similar statistical approaches for describing the dependence of the duration of

Keywords