Environmental Engineering Reference
In-Depth Information
Emission Inventory for the Road Transport
Sector in the Urban Area of Naples:
Methodology and Results
Paolo Iodice, Massimo Cardone, Adolfo Senatore, and Mariano Migliaccio
Introduction
The most recent European directives and Italian legislative decrees that have
regulated the environmental matter are oriented to planning and determination of
the more opportune strategies for health safeguard and for ecosystem protection.
It appears obvious, therefore, that the national and regional programming must use
appropriate cognitive instruments to estimate the air quality state and the origins of
air pollutions in order to support prevention and reorganization decisions.
The inventory of emission sources is a preliminary and fundamental cognitive
element for the planning activity and for air quality management; at a European
level the inventories must be drawn up with CORINAIR Methodology (Coordination
Information Air)
[1, 2]
. Such inventories constitute a technological, economic and
territorial data collection, which concurs to individualize the pollution sources
(industrial, civil, transports, etc.), their localization with spatial disaggregation
(regions, provinces and towns), the amount and typology of the polluting substance.
The amounts of pollutants emitted from various sources in the zones under investi-
gation can be obtained through direct and continuous measures where possible,
otherwise through estimates. The direct measure of the emissions, generally, can be
carried out only for the principal industrial systems, usually schematized as punc-
tual sources. For all other sources, called diffused sources (small industries, heating
systems, natural sources, urban road traffic) and for the linear sources, it must resort
to estimations: the emissions are estimated on the basis of opportune activity indi-
cators and fixed emission factors concerning specific emissive activity.
In Europe, the emissions due to road traffic (SNAP sector 07) are almost always
an important fraction of the total emissions of a territory, despite extensive mea-
sures world-wide to reduce emissions during the last one or two decades. In Italy,
P. Iodice, M. Cardone, A. Senatore, and M. Migliaccio
Dipartimento di Ingegneria Meccanica per l'Energetica- Università degli Studi di Napoli
Federico II
