Information about air quality in the Czech Republic

Information on the level ambient air pollution pursuant the Clean Air Act

Current overview of data from automated stations (non-verified data)

Updated: 2017-07-27 18:23 CEST

Region: Prague 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
µg/m³
1h
µg/m³
24h
µg/m³
1h
µg/m³
     Centre of Prague 2 - good
AKALA Praha 8-Karlin traffic CHMI 2 - good 28.3 14.0 16.0
ALEGA Praha 2-Legerova traffic CHMI 2 - good 32.5 162 7.0 10.8 4.0
AREPA Praha 1-n. Republiky urban CHMI 1 - very good 14.7 9.0 11.6
ARIEA Praha 2-Riegrovy sady urban CHMI 2 - good 6.7 15.9 12.0 55.9 10.6 5.0
ASMIA Praha 5-Smichov traffic CHMI 3 - fair 54.9 20.0 17.8 20.0
AVRSA Praha 10-Vrsovice traffic CHMI 2 - good 32.0 17.5
AVYNA Praha 9-Vysocany traffic CHMI 20.0 49.1 13.1
     Periphery of Prague 2 - good
AKOBA Praha 8-Kobylisy suburban CHMI 2 - good 14.2 5.0 55.3 11.2
ALIBA Praha 4-Libus suburban CHMI 223 7.7 10.4 4.8
ASTOA Praha 5-Stodulky urban CHMI 3 - fair 27.0 66.4 14.5 4.0
ASUCA Praha 6-Suchdol suburban CHMI 3 - fair 10.0 68.8 12.4
ABREA Praha 6-Brevnov urban CHMI 1 - very good 7.3 14.0 12.3
ACHOA Praha 4-Chodov urban CHMI 1 - very good 11.5 3.0 9.8
APRUA Praha 10-Prumyslova traffic CHMI 2 - good 36.7 29.0 17.6
Region: Stredocesky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
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8h
µg/m³
1h
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1h
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24h
µg/m³
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SBERA Beroun traffic CHMI 1 - very good 7.3 14.0 12.5 7.0
SKLMA Kladno-stred mesta urban CHMI 2 - good 17.0 64.6 12.4 6.0
SKLSA Kladno-Svermov urban CHMI 1 - very good 1.3 5.2 9.0 12.5
SMBOA Mlada Boleslav urban CHMI 3 - fair 11.7 6.0 71.4 7.2 12.0
SONRA Ondrejov rural CHMI 73.8
SPBRA Pribram-Brezové Hory urban CHMI 1 - very good 8.6 8.0 7.2
SRORA Rozdalovice-Ruska rural CHMI 1 - very good 7.7 9.6 18.0 15.6 14.0
STCSA Beroun-Certovy schody rural VCs 6.1 291 67.4 11.0
Region: Jihocesky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
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8h
µg/m³
1h
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1h
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24h
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1h
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CCBDA Ceske Budejovice urban CHMI 3 - fair 3.7 5.9 9.0 71.2 15.0 3.0
CCHUA Churanov rural CHMI 5.1 3.6 57.7
CHVOA Hojna Voda rural CHMI 2 - good 12.0 63.6 7.7
CKOCA Kocelovice rural CHMI 66.8
CPRAA Prachatice suburban CHMI
CTABA Tabor traffic CHMI 3 - fair 16.3 156 10.0 70.0 11.4
Region: Plzensky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
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8h
µg/m³
1h
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1h
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24h
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1h
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PKUJA Kamenny Ujezd rural CHMI 1 - very good 1.3 5.4 8.0 14.7 13.0
PPLAA Plzen-Slovany traffic MPl 2 - good 2.7 17.4 12.0 44.7 13.1 13.0
PPLEA Plzen-stred traffic MPl 1 - very good 2.9 11.3 282 5.0 10.4 4.0
PPLLA Plzen-Lochotin urban MPl 2 - good 5.6 9.8 6.0 45.1 12.4 5.0
PPLVA Plzen-Doubravka suburban CHMI 2 - good 8.3 11.3 6.0 48.3 11.1 4.0
PPMOA Plzen - mobil 20.03.2013 Plzeň - Litice MPl 2 - good 1.3 8.0 397 11.0 44.1 12.7 7.0
PPRMA Primda rural CHMI 46.9
Region: Karlovarsky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
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1h
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KCHMA Cheb suburban CHMI 1 - very good 5.0 13.7
KPRBA Prebuz rural CHMI 1.3 4.0 55.5
KSOMA Sokolov suburban CHMI 2 - good 6.4 9.4 6.0 52.5 11.5 4.0
Region: Ustecky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
µg/m³
1h
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UCHMA Chomutov urban CHMI 1 - very good 9.0 10.8
UDCMA Decin urban CHMI 2 - good 38.1 19.0 13.8 13.0
UDOKA Doksany rural CHMI 1.3 5.2 68.4
UKRUA Krupka rural CHMI 2 - good 5.1 32.0 13.2
ULOMA Lom rural CHMI 2 - good 18.4 12.6 20.0 46.5 12.1 11.0
ULTTA Litomerice urban CHMI 2 - good 6.1 9.0 58.5 11.6
UMEDA Medenec rural CHMI 1 - very good 1.3 6.0 12.5
UMOMA Most urban CHMI 2 - good 13.0 18.0 47.9 13.0 2.0
URVHA Rudolice v Horach rural CHMI 2 - good 11.0 64.0 8.7
USNZA Sneznik rural CHMI 8.8 16.5 49.5
UTPMA Teplice urban CHMI 2 - good 16.2 14.0 45.7 12.5 11.0
UTUSA Tusimice rural CHMI 2 - good 1.3 6.7 12.0 55.3 11.2 9.0
UULDA Usti n.L.-Vseboricka traffic CHMI 2 - good 33.9 395 22.0 14.0 15.0
UULKA Usti n.L.-Kockov suburban CHMI 2 - good 8.8 15.1 14.0 52.5 10.8 8.0
UULMA Usti n.L.-mesto urban CHMI 2 - good 5.1 22.8 13.0 42.3 12.3
Region: Liberecky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
µg/m³
1h
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LCLMA Ceska Lipa urban CHMI 1 - very good 14.0 11.0
LFRTA Frydlant rural CHMI 3.5 81.8
LLILA Liberec Rochlice urban CHMI 3 - fair 9.1 12.4 9.0 79.2 8.2 11.0
LSOUA Sous rural CHMI 89.6
Region: Kralovehradecky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
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HHKBA Hradec Kralove-Brnen traffic CHMI 1 - very good 19.1 226 12.0 11.0 5.0
HHKOK Hradec Kralove-observator suburban CHMI 68.4
HKRYA Krkonose-Rychory rural CHMI
HPLOA Polom rural CHMI 2.7 19.0 5.4
HTRTA Trutnov - Tkalcovska urban CHMI 1 - very good 10.0 8.7
Region: Pardubicky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
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24h
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EMTPA Moravska Trebova - Piaristicka. urban CHMI 12.0 7.8 6.0
EPAOA Pardubice-Rosice suburban CHMI 3.5 13.0
EPAUA Pardubice Dukla urban CHMI 3 - fair 9.9 21.0 77.2 10.7 10.0
ESVRA Svratouch rural CHMI 77.2
Region: Vysocina 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
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24h
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JHBSA Havl.Brod-Smetan.nam urban ZU-Ostrava 1 - very good 12.0 7.9 7.0
JJIHA Jihlava urban CHMI 3 - fair 1.3 8.6 393 17.0 72.8 9.5 11.0
JJIZA Jihlava-Znojemska traffic ZU-Ostrava 2 - good 26.0 15.0 12.1 7.0
JKMYA Kostelni Myslova rural CHMI 76.4
JKOSA Kosetice rural CHMI 3 - fair 1.9 0.4 162 42.0 83.8 18.4 5.0
JTREA Trebic suburban CHMI 1 - very good 12.0 11.5
JZNZA Zdar nad Sazavou urban ZU-Ostrava 1 - very good 13.0 6.9 9.0
Region: Jihomoravsky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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24h
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1h
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BBDNA Brno - Detska nemocnice urban CHMI 2 - good 23.1 1.0 49.5 6.6 14.0
BBMAA Brno-Arboretum urban SMBrno 1 - very good 5.5 19.1 7.7
BBMLA Brno-Lany suburban SMBrno 2 - good 4.0 15.1 58 25.2 51.5 8.7 16.8
BBMSA Brno-Svatoplukova traffic SMBrno 3 - fair 71.2 20.3 9.3 12.4
BBMVA Brno-Vystaviste traffic SMBrno 1 - very good 21.8 17.2 9.5
BBMZA Brno-Zvonarka traffic SMBrno 3 - fair 60.1 335 23.9 25.9 7.8 13.6
BBNAA Brno-Masna urban ZU-Ostrava 2 - good 23.5 21.0 13.5 12.0
BBNIA Brno-Lisen urban CHMI 1 - very good 9.0 8.5 6.0
BBNVA Brno-Uvoz traffic CHMI 3 - fair 50.7 275 19.0 10.1 12.0
BBNYA Brno-Turany suburban CHMI 3 - fair 7.2 4.4 7.0 65.8 7.2 7.0
BHODA Hodonin urban ZU-Ostrava 1 - very good 12.0 7.3 8.0
BKUCA Kucharovice rural CHMI 71.4
BMISA Mikulov-Sedlec rural CHMI 3 - fair 1.3 3.3 19.0 70.0 8.6 9.0
BMOCA Sivice rural Ceskomorav 2 - good 2.7 26.6 14.0 5.2 10.0
BMOKA Mokra rural Ceskomorav 1 - very good 9.0 4.2 7.0
BZNOA Znojmo suburban CHMI 1 - very good 5.4 16.0 7.2 13.0
Region: Olomoucky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
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1h
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MBELA Belotin rural CHMI 1 - very good 17.0 7.1 4.0
MJESA Jesenik-lazne rural CHMI 2 - good 1.3 3.6 5.0 45.1 5.8
MOLJA Olomouc-Hejcin urban CHMI 1 - very good 11.3 18.0 9.0 10.0
MOLSA Olomouc-Smeralova urban ZU-Ostrava 1 - very good 13.0 7.1 7.0
MPRRA Prerov urban CHMI 2 - good 1.3 7.0 51.1 8.2 5.0
MPSTA Prostejov urban CHMI 1 - very good 16.0 9.3
MSMSA Sumperk - 5.ZS urban MSUM 2 - good 5.7 8.0 55.9 5.5 6.0
Region: Zlinsky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
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1h
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ZOTMA Otrokovice - mesto traffic MOTRO 208 4.6
ZSNVA Stitna n.Vlari rural CHMI 58.5
ZTNVA Tesnovice rural CHMI 2 - good 6.7 7.1 7.0 58.5 4.2 3.0
ZUHRA Uherske Hradiste traffic CHMI 2 - good 29.8 256 6.7 11.2
ZVMZA Valasske Mezirici urban CHMI 1 - very good 9.0 6.8 7.0
ZZLNA Zlin suburban CHMI 2 - good 3.7 7.7 9.0 57.1 5.8 6.0
ZZZSA Zlin-ZS Kvitkova urban MZLI 2 - good 14.3 7.5 47.1 4.8 5.1
Region: Moravskoslezsky 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
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TBKRA Bily Kriz rural CHMI 1.3 2.1 53.1
TCERA Cervena hora rural CHMI 1.0 60.2
TCTAA Cesky Tesin-autobusove nadrazi traffic ZU, MSK 3 - fair 5.6 10.9 320 6.0 69.2 14.2
TCTNA Cesky Tesin urban CHMI 1 - very good 1.3 5.7 3.0 8.6 3.0
TFMIA Frydek-Mistek suburban CHMI 1 - very good 8.4 20.0 5.7 18.0
THARA Havirov urban CHMI 1 - very good 7.0 9.5 8.0
TKAOK Karvina-ZU traffic ZU-Ostrava 2 - good 31.2 10.0 5.5 5.0
TKARA Karvina urban CHMI 2 - good 5.3 13.2 5.0 57.7 9.8 2.0
TOFFA Ostrava-Fifejdy urban CHMI 3 - fair 2.9 7.3 7.0 68.2 7.5
TOMHK Ostrava-Marianske Ho industrial SMOstrava 3 - fair 5.6 4.0 61 8.0 68.4 8.0
TONVA Ostrava Nova Ves-areal OVak traffic ZU, MSK 2 - good 5.6 47.4 359 16.0 38.9 15.1
TOPDA Ostrava-Poruba, DD traffic SMOstrava 2 - good 27.7 14.0 13.1
TOPOA Ostrava-Poruba/CHMU suburban CHMI 1.3 2.9
TOPRA Ostrava-Privoz industrial CHMI 1 - very good 2.9 5.5 58 10.0 13.8 9.0
TOREK Ostrava-Radvanice ZU industrial SMOstrava 5.6 4.0 229 40.1
TOROK Ostrava-Radvanice OZO suburban SMOstrava 3 - fair 5.6 4.0 7.0 66.8 16.0
TOUZA Opava-univerzitni zahrada traffic ZU, MSK 3 - fair 5.6 4.0 255 8.0 68.4 11.0
TOVKA Opava-Katerinky urban CHMI 2 - good 4.8 1.0 64.0 6.8 3.0
TOZRA Ostrava-Zabreh urban CHMI 1 - very good 5.0 6.3 4.0
TRYCA Rychvald urban CHMI 1 - very good 1.3 7.1 16.0 12.2 8.0
TSTDA Studenka rural CHMI 2 - good 1.3 5.0 5.0 49.3 7.2 7.0
TTRKA Trinec-Kanada suburban MTR 1 - very good 5.2 7.0 5.9
TTROA Trinec-Kosmos urban CHMI 3 - fair 7.0 67.6 7.9 17.0
TVERA Vernovice rural CHMI 1 - very good 3.7 4.0 7.0 7.7 6.0

CHMI is responsible for data completeness and quality only at the stations that are administered by CHMI (see the entry "Owner" indicated with the published data).

Current overview of data from Poland automated stations

These data are for operational reasons 2 hours delayed

Region: Malopolski 2017-07-27 15:00 - 16:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
µg/m³
1h
µg/m³
24h
µg/m³
1h
µg/m³
YKRAA Krakow urban MWIOS
YTARA Tarnow urban MWIOS
YTRZA Trzebinia urban MWIOS 165
YZAKA Zakopane urban MWIOS 124
Region: Opolskie 2017-07-27 15:00 - 16:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
µg/m³
24h
µg/m³
1h
µg/m³
QKEKA Kedzierzyn-Kozle urban OWIOS 7.9
QOPOA Opole urban OWIOS
QZDZA Zdzieszowice urban OWIOS 10.3
Region: Dolnoslaskie 2017-07-27 15:00 - 16:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
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1h
µg/m³
VDZRA Dzierzoniow urban DWIOS
VOSIA Osieczów rural DWIOS
VZASA Zabkowice Slaskie urban DWIOS
Region: Slaskie 2017-07-27 15:00 - 16:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
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1h
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24h
µg/m³
1h
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WBIBA Bielsko Biala urban SWIOS 79
WCIEA Cieszyn urban SWIOS 167
WCZAA Czestochowa - Armii Krajowej traffic SWIOS 137
WCZBA Czestochowa - Baczyrskiego urban SWIOS 168
WDAGA Dabrowa Górnicza urban SWIOS 603
WGLIA Gliwice urban SWIOS
WKATA Katowice urban SWIOS 5.6
WRYBA Rybnik urban SWIOS
WSOSA Sosnowiec urban SWIOS
WTYCA Tychy urban SWIOS
WUSTA Ustron urban SWIOS
WWOZA Wodzislaw urban SWIOS 90
WZABA Zabrze urban SWIOS 219
WZLPA Zloty Potok rural SWIOS
WZYWA Zywiec urban SWIOS

Current overview of data from Austrian automated stations

Region: Niederösterreich 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
µg/m³
1h
µg/m³
24h
µg/m³
1h
µg/m³
2AMSA Amstetten urban Amt der NÖ 3 - fair 9.5 10.0 80.5 5.9
2BIEA Biedermannsdorf traffic Amt der NÖ
2DUNA Dunkelsteinerwald rural Amt der NÖ 1.0 8.0 45.0
2FORA Forsthof rural Amt der NÖ 1.0 5.5 85.5
2GANA Gänserndorf Amt der NÖ 3 - fair 3.0 6.0 12.5 74.5 5.8
2GREA Gr. Enzersdorf II. rural Amt der NÖ 1.0 6.5 11.5
2HAIA Hainburg suburban Amt der NÖ 3 - fair 3.0 9.0 11.0 72.5 4.4
2HEIA Heidenreichstein rural Amt der NÖ 3 - fair 2.0 3.0 12.5 81.0 8.3
2IRNA Irnfritz rural Amt der NÖ 0.5 53.5
2KEMA Kematen suburban Amt der NÖ 3 - fair 8.0 5.5 82.5 4.6
2KLOA Klosterneuburg urban Amt der NÖ 1.0 5.5 64.0
2KLVA Klosterneuburg Verkehr traffic Amt der NÖ 1 - very good 19.0 13.0 6.3
2KOLA Kollmitzberg rural Amt der NÖ
2KREA Krems urban Amt der NÖ 1 - very good 1.0 21.5 13.0 30.0 4.1
2MANA Mannswörth industrial Amt der NÖ 1 - very good 13.5 16.0 7.7
2MISA Mistelbach rural Amt der NÖ 3 - fair 3.0 13.5 76.5 6.1
2NEUA Neusiedl rural Amt der NÖ 1 - very good 2.0 6.5 12.5 5.2
2POCA Pöchlam urban Amt der NÖ 6.5 77.0
2PURA Purkersdorf suburban Amt der NÖ 16.5 45.0
2SCHA Schwechat industrial Amt der NÖ 3 - fair 3.0 14.5 139 12.0 81.5 4.6 7.5
2SPOA St. Polten urban Amt der NÖ 2 - good 2.5 23.0 13.0 47.0 7.0 8.5
2SPVA St. Pölten Verkehr traffic Amt der NÖ 2 - good 35.0 313 18.5 48.5 8.0
2STOA Stockerau traffic Amt der NÖ 36.5 10.0 4.3
2STRA Sreithofen rural Amt der NÖ 2 - good 2.0 3.0 6.5 48.5 3.2
2SVAA St. Valentin-A1 traffic Amt der NÖ 13.0 75.5 3.0
2TRAA Traismauer suburban Amt der NÖ 1 - very good 3.0 12.0 15.5 6.2
2TRSA Trasdorf suburban Amt der NÖ 1 - very good 9.0 9.5 14.0 6.4
2TUKA Tulbinger Kogel rural Amt der NÖ 3.5 2.5
2TULA Tulln urban Amt der NÖ 2 - good 2.0 15.0 12.5 54.0 7.1
2WOLA Wolkersdorf rural Amt der NÖ 19.0 64.0
2ZIEA Ziersdorf rural Amt der NÖ 3 - fair 12.0 73.5 5.8
2ZWEA Zwentendorf suburban Amt der NÖ 2.0 11.0 11.5
Region: Oberösterreich 2017-07-27 17:00 - 18:00 CEST SO2 NO2 CO PM10 O3 PM10 PM2,5
Code Name Classification Owner Air quality 1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
µg/m³
1h
µg/m³
24h
µg/m³
1h
µg/m³
3ASTA Asten 4 traffic AOL
3BISA Bad-Ischl suburban AOL 2 - good 19.3 7.1 52.9 5.1 5.0
3BZEA Braunau Zentrum suburban AOL 2 - good 0.7 13.5 3.5 45.7 7.1 0.5
3EFEA Eferding AOL
3EKRA Enns-Kristein 3 traffic AOL 3 - fair 64.2 130 7.6 6.2 3.2
3ENZA Enzenkirchen AOL
3FEUA Feuerkogel AOL 3 - fair 0.2 2.3 4.3 85.4 3.9 3.7
3GRNA Grunbach rural AOL 2 - good 4.9 11.1 11.8 58.5 12.6 8.6
3LEBA Linz-Ebelsberg AOL
3LENA Lenzing industrial AOL 0.2 3.1 66.9
3LKLA Linz-Kleinmunchen suburban AOL
3LNWA Linz-Neue Welt urban AOL 2 - good 2.5 26.4 180 7.1 54.9 7.4 2.5
3LRMA Linz-Romerbergtunnel traffic AOL 2 - good 44.0 211 10.6 11.2 6.2
3LSTA Linz-Stadtpark urban AOL 2 - good 10.8 6.4 62.3 6.7 1.7
3LTUA Linz-24er-Turm traffic AOL
3SGAA Steyregg-Au industrial AOL 2 - good 18.7 33.3 374 11.1 11.4 4.8
3STAA Steyr-Tabor 3 AOL
3STEA Steyr suburban AOL 3 - fair 1.7 15.0 5.9 71.4 4.7 2.4
3TRAA Traun suburban AOL 3 - fair 0.7 5.8 4.5 73.8 5.5 0.9
3VKLA Vöcklabruck suburban AOL 1 - very good 0.1 7.1 3.9 4.5 0.8
3WELA Wels urban AOL 3 - fair 0.1 11.1 145 4.3 68.4 4.7 0.7
3ZBLA Zobelboden 2 rural AOL

Legend

Index Air quality SO2 NO2 CO O3 PM10
1h
µg/m³
1h
µg/m³
8h
µg/m³
1h
µg/m³
1h
µg/m³
     1      very good 0 - 25 0 - 25 0 - 1000 0 - 33 0 - 20
     2      good > 25 - 50 > 25 - 50 > 1000 - 2000 > 33 - 65 > 20 - 40
     3      fair > 50 - 120 > 50 - 100 > 2000 - 4000 > 65 - 120 > 40 - 70
     4      suitable > 120 - 350 > 100 - 200 > 4000 - 10000 > 120 - 180 > 70 - 90
     5      poor > 350 - 500 > 200 - 400 > 10000 - 30000 > 180 - 240 > 90 - 180
     6      very poor > 500 > 400 > 30000 > 240 > 180
Component is not measured on this station
Incomplete data

The conditions for the determination of air pollution index

The calculation of air quality index is based on the assessment of 1-hour concentration of sulphur dioxide (SO2), nitrogen dioxide (NO2), suspended particles (PM10), 8-hour running concentrations of carbon monoxide (CO) and 1-hour ground - level ozone concentrations (O3) in the summer period (1. 4. - 30. 9.). The calculation considers the possible impact of air pollution on the health of population. The calculation for PM10 uses 1-hour average concentrations because they better reflect the current situation (the limits for 1-hour concentrations were derived on the basis of statistical analysis of 24-hour and 1-hour concentrations).

The 1-hour ozone concentrations (O3) are given in the winter period (1. 10. - 31. 3.) as well, although they are not included in the calculation of air quality index. For information purposes, the last column presents the 24-hour running average concentrations of PM10, which are not included in the calculation of air quality index.

  1. Data for the calculation of air quality index are based on current measurements and they are not verified.
  2. Air Quality Index is shown for each quantity in a given locality separately and as an overall index for the locality in column Air Quality is presented the highest of them. Conditions for display is the measurement of PM10 on the site.
  3. Air quality index is imaged in case the 1-hour data are available at least for NO2, O3 and PM10 in the summer period (1.4. - 30.9.) or at least for NO2 and PM10 in the winter period (1.10. - 31.3.), if they are subject of standard measurements in the locality.
  4. The term “incomplete data” may indicate that the instruments at the station were under calibration during the respective hour.
  5. The air quality index is based on data measured strictly pursuant to the current national legislation (Act No. 201/2012 Coll. on air protection, as amended, and Decree No. 330/2012 Coll. on the method of assessment and evaluation of ambient air pollution levels and on the extent of informing the public about levels of ambient air pollution and during smog situations) and pursuant to the requirements of the European Union.