5.3.20. Concentrations of sulphur dioxide (SO2) in county seats and in selected industrial towns according to the data of the manual network (2003–2007)*

(µg/m3)

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Town Average immissiona
2003 2004 2005 2006 2007
Budapest 1.8b 1.3b 1.1 1.0 1.0
Pécs 5.7 5.1 2.2 1.5
Komló 3.9 2.2 1.7 1.9
Kecskemét 2.9 1.9 2.0 1.1 1.1
Békéscsaba 2.4 2.9 1.4 2.2 1.3
Miskolc 15.2 6.3 4.0 6.8
Kazincbarcika 17.3 7.4 2.9 4.1 3.9
Tiszaújváros 9.9 5.6 2.9 3.9 3.5
Ózd 11.9 6.8 4.2 7.6 4.8
Szeged 2.7 2.2 1.6 1.3 1.1
Székesfehérvár 5.2 2.9 0.7 0.6 0.5
Dunaújváros 3.9 3.4 1.2 1.4 1.7
Győr 6.4 5.6 11.6 12.9 3.9
Debrecen 3.0 1.8 1.9 2.3 2.1
Eger 5.7 4.0 2.7 4.2 3.5
Szolnok 1.8b 2.0 1.4 1.2 4.0
Tatabánya 31.5 15.3 15.1 10.0 4.7
Dorog 8.2 7.2 12.5 10.0 3.9
Salgótarján 2.2 1.5 1.1 1.0 1.0
Vác 1.8 1.5 1.0 1.0 1.1
Kaposvár 2.1 1.5 1.8 2.0
Nyíregyháza 2.3 1.2 1.0 1.0 2.0
Szekszárd 1.9 1.3 0.9 0.8 0.7
Szombathely 2.1 1.4 1.6 1.3 4.1
Veszprém 2.6 1.2 0.6 0.5 0.5
Ajka 5.3b 2.1b 1.4 0.8 0.7
Várpalota 2.8 1.5b 0.7 0.7 0.4
Zalaegerszeg 1.6 1.5 2.1 2.0 4.8
*Source: VITUKI Environmental Protection and Water Management Research Institute  aIt is counted from 24-hourly averages. Yearly limit value: 50 µg/m³.  bNumber of valid data does not fulfill the quality requirements of the laws in force. 

© Hungarian Central Statistical Office, 2011