The Thriasio Plain is the first and main industrial zone of Greece. The
scope of this paper is to generate “Typical Air Pollutant Day” in
Thriasio Plain. For this purpose we used data for the time period
2001-2014. The data were provided from the Ministry of Environment and
are hourly concentration values of Sulfur Dioxide, Nitrogen Monoxide and
Dioxide, Ozone and daily values of PM10 at Elefsis central station. The
results show an improvement of air quality during the last years,
especially for Sulfur Dioxide and Nitrogen Monoxide and Dioxide. The
time period considered, concurs with the economic and financial crisis
in Greece. For Ozone, the results are unclear. Similar results for Ozone
were obtained when we compared measurements from the Ministry of
Environment’s data for specific days with measurements from the local
municipality’s network
