Air Emission Inventories for the Greater Athens Area
emission inventory is a source of information on the spatial distribution and
total amounts of pollutants from major industrial sources, transport and other
human activities within a certain geographical area. A priori knowledge
of the significant sources of pollutants is essential to local air quality
assessment and management and the use of emission inventories can be the
indispensable tool to carry out such a task.
major concern are the serious air pollution problems in Attica. In order to
assess the air-quality in the Greater Athens Area (GAA), air-emissions
inventories of high spatial resolution for various pollutants (NOx,
NMVOC, Benzene, CO, CO2, SO2 and PM) have been compiled
with the aid of a Geographical Information System (GIS). The GAA has been
defined as a geographical area to cover the whole Attica peninsula.
sources from significant anthropogenic activities such as road transport,
industry, airport, harbour and domestic heating have been considered in the
construction of the bottom-up inventories for the GAA. Since it is
impracticable to get in situ measurements of every emission source in a
large urban area, the majority of emissions can be estimated from local
information such as fuel consumption, vehicle kilometers traveled, traffic load,
industrial processes and other activities related to emissions. Data were
collected from various sources mainly the National Statistical Service and the
Greek Ministries of Environment and Development for three types of sources: (i)
line sources including roads, (ii) area sources including low intensity
emissions from sources such as building heating systems and (iii) point sources
including emissions from large industrial plants.
annual emissions inventories of NOx,
CO2 and PM in the GAA are displayed here.
total area coverage of the inventories is 72 km by 72 km and the
spatial resolution is 1 km by 1 km. The emissions inventories are also available
with a temporal resolution of 1 hr.
showed that traffic is responsible for almost all CO emissions, two-thirds of NOx
emissions and half of the total NMVOC emissions in Attica. On the other hand,
industry was found to be responsible for almost all SO2
and PM emissions and a third of NOx and NMVOC emissions while half of
emissions have originated from central heating.
work has been carried out within the framework of the EC research project IMPRESAREO
(ENV4 - CT98 - 0752, DG 12 – ESCY).