Year Sulphur (in sulphur-equivalent) Nitrogen (in nitrogen-equivalent)
K-pusztaa Farkasfab Nyírjesc Hortobágyd K-pusztaa Farkasfab Nyírjesc Hortobágyd
1999 0.87 0.74 0.88 0.70 0.94 0.83 0.60 0.65
2000 0.47 0.55 0.62 0.44 0.49 0.71 0.48 0.46
2001 0.57 0.39 0.57 0.58 0.43 0.59 0.46 0.51
2002 0.63 0.58 0.89 0.52 0.59 0.63 0.71 0.61
2003 0.37 0.52 0.54 0.35 0.33 0.59 0.38 0.39
2004 0.66 0.56 0.75 0.71 0.37 0.63 0.50 1.26
2005 0.48 .. 0.66 0.71 0.52 .. 0.52 0.76
2006 0.32 .. 0.82 0.64 0.34 .. 0.64 0.70
2007 0.31 0.51 0.66 0.99 0.42 0.73 0.72 0.96
2008 0.44 0.50 0.62 0.97 0.53 0.63 0.73 1.21
2009 0.32 0.52 0.60 0.43 0.50 0.77 0.75 0.78
2010 0.47 0.38 0.67 0.38 0.62 0.60 0.74 0.75
2011 0.34 0.37 0.43
..e
0.44 0.53 0.50
..e
2012 0.26 0.35 0.49 .. 0.34 0.49 0.55 ..
2013 0.37 0.55 0.67 .. 0.40 0.70 0.55 ..
2014 0.50 0.49 0.64 .. 0.58 0.72 0.66 ..
2015 0.38 0.31 0.61 .. 0.52 0.53 0.66 ..
2016 0.44 0.42 0.58 .. 0.56 0.66 0.54 ..
2017 0.39 0.56
..f
.. 0.58 0.51
..f
..
2018 0.33 0.43 0.47 .. 0.56 0.69 0.66 ..
2019 0.26
..g
0.34 .. 0.46
..g
0.46 ..
2020 0.25 .. 0.32 .. 0.49 .. 0.47 ..
2021 0.23 .. 0.31 .. 0.36 .. 0.43 ..
2022 0.17 .. 0.32 .. 0.35 .. 0.48 ..
2023 0.25 .. 0.54 .. 0.42 .. 0.65 ..

Footnotes

*Data stem from sampling. More information is available at https://legszennyezettseg.met.hu/en.
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
d47° 27' 55'' N, 20° 53' 32'' E, 89 m
eMeasurement has been stopped in Hortobágy since 1. January 2011.
fData can not be evaluated because of technical reasons (insufficient number of measurements).
gMeasurement has been stopped in Farkasfa since 1. May 2019.
Source: HungaroMet Hungarian Meteorological Service.
.