Convegni ATI - Accesso riservato soci CTI

Autore: I. Allegrini, F. Costabile

Collana: AA - 2004 Mexico City - Reducing The Impact of Vehicles on Air and Environment Quality in Cities

Note:
The correlation between exposition and emissions is described by a very complicated non linear function of the pollutant concentration, depending on several further parameters; the knowledge of this function is still an open problem for the scientific community and a better comprehension of this concern is necessary to be faced in future.
In order to investigate this function a new monitoring approach is pursued. The air quality monitoring network is planned to measure the maximum possible number of the following parameters:
-Trend of emission Qj(x,t) in space and time (t);
-Trend of concentration Ck in space and time (t);
-Trend of exposition Ei in space and time (t);
-Meteorological information (flow field , eddy diffusion )in space and time (t);
-Forcing terms (removal processes from the atmosphere, chemical reactions, etc.).
The network design is targeted to two focal points:
1.Plan the monitoring network to measure the maximum number of parameters (reference data from automatic analysers and additional data from new technologies), detecting and isolating the weak signals (comig from unconventional data) in a wide environmental noise characteristic of the megacities ambient area.
2.Connect the traffic air pollution control systems to intelligent transport systems in order to check, in a medium-long time, the environmental meaning of emission control measures (examples are ’end of pipe’ technology - e.g. fitting particulate traps to vehicles-, the use of alternative fuels, such as LPG, methane or hydrogen) or enforcement of emissions standards (e.g. through the use of Low Emission Zones).