5.3.31. Regional background concentrations of some air pollutants at the background stations (1985–)*(2/2)

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Year Nitric acid (HNO3), µg/m3 Carbon-dioxide (CO2), ppm Tropospheric ozone (O3), ppb
K-pusztaa Farkasfab Nyírjesc K-pusztaa Hegyhátsáld K-pusztaa Farkasfab Nyírjesc
1985 1.8 .. .. .. .. .. .. ..
1986 1.5 .. .. .. .. .. .. ..
1987 1.8 .. .. .. .. .. .. ..
1988 1.6 .. .. .. .. .. .. ..
1989 2.1 .. .. 358 .. .. .. ..
1990 2.2 .. .. 354 .. .. .. ..
1991 1.6 .. .. 359 .. .. .. ..
1992 1.8 .. .. .. .. .. .. ..
1993 3.0 .. .. 358 .. .. .. ..
1994 2.9 .. .. 362 .. .. .. ..
1995 1.9 .. .. 364 363 31.9 .. ..
1996 1.4 .. .. .. .. 32.0 .. ..
1997 1.9 .. .. 367 367 37.3 31.8 ..
1998 1.1 .. .. 370 372 38.9 37.2 34.9
1999 1.3 .. .. 374 373 33.4 33.5 36.1
2000 1.2 .. .. .. 371 35.0 40.4 31.8
2001 1.0 .. .. .. .. 32.0 .. 22.1
2002 0.9 .. .. .. 376 33.2 .. 25.7
2003 1.2 .. .. .. 382 34.4 .. 20.6
2004 0.9 0.9 1.1 .. .. 28.2 .. 32.3
2005 1.1 .. 1.2 .. 385 26.9 .. 31.6
2006 0.8 0.9 1.0 .. 391 28.6 .. 43.3
2007 0.9 1.9 0.9 .. 388 30.5 28.3 41.2
2008 1.4 0.6 0.9 .. 389 33.0 26.2 43.8
2009 1.3 0.6 1.2 .. 392 32.0 27.2 45.8
2010 1.6 0.5 0.9 .. 394 26.7 25.5 38.7
2011 1.4 1.0 1.3 .. 397 29.2 22.8 22.5
2012 1.1 0.7 1.0 .. 398 32.2 32.2 33.2
2013 1.1 0.9 0.8 .. 402 29.0 33.5 34.3
2014 0.9 0.8 0.7 .. 402 28.1 30.2 32.3
2015 0.8 0.7 0.8 .. 406 26.8 30.7 37.2
2016 1.0 0.9 0.9 .. 408 22.9 25.6 30.7
2017 1.1 1.1 ..e .. 411 .. .. ..
2018 0.9 0.9 1.0 .. ..e 35.3 28.4 ..e
2019 0.9 ..g 1.3 .. ..e 31.6 ..g ..e
*Source: Hungarian Meteorological Service  a46° 58' 3'' N, 19° 33' 11'' E, 127 m  b46° 54' 37'' N, 16° 18' 34'' E, 312 m  c47° 52’ N, 19° 57' E, 702 m  d46° 57’ N, 16° 39' E, 248 m  eData can not be evaluated because of technical reasons (insufficient number of measurements).  gThere has been no data in Farkasfa since 1. May 2019.  Revised data 

© Hungarian Central Statistical Office, 2011