PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 |
| アルバニア | 22.96 | 22.27 | 22.71 | 20.81 | 22.80 | 20.96 | 19.41 | 19.37 | 19.12 | 17.60 | 18.56 | 19.05 | 15.70 | 15.71 |
| ボスニア・ヘルツェゴビナ | 35.70 | 36.90 | 39.03 | 35.25 | 39.40 | 35.50 | 33.74 | 32.48 | 33.81 | 30.38 | 30.90 | 32.50 | 26.72 | 26.60 |
| ブルガリア | 27.26 | 25.02 | 25.61 | 22.93 | 26.19 | 23.09 | 21.49 | 21.99 | 20.79 | 19.98 | 20.03 | 19.72 | 17.54 | 17.15 |
| クロアチア | 24.89 | 22.61 | 24.77 | 21.55 | 23.61 | 20.92 | 20.26 | 19.83 | 20.17 | 18.18 | 18.76 | 20.00 | 15.91 | 16.12 |
| チェコ共和国 | 25.72 | 20.46 | 22.31 | 20.91 | 21.01 | 19.29 | 18.93 | 18.36 | 17.81 | 16.99 | 16.94 | 17.35 | 14.23 | 14.11 |
| ハンガリー | 25.26 | 20.66 | 21.98 | 20.47 | 21.31 | 18.93 | 17.85 | 17.94 | 17.98 | 16.24 | 17.02 | 17.50 | 14.64 | 14.14 |
| North Macedonia | 42.84 | 38.41 | 38.14 | 34.31 | 40.06 | 35.84 | 32.72 | 33.78 | 31.87 | 30.08 | 30.46 | 31.00 | 25.88 | 26.12 |
| モルドバ共和国 | 34.67 | 28.76 | 22.70 | 20.41 | 20.71 | 20.38 | 19.98 | 18.74 | 18.15 | 17.06 | 15.14 | 17.08 | 15.77 | 14.76 |
| モンテネグロ | 30.45 | 25.77 | 26.14 | 24.03 | 26.81 | 25.15 | 23.03 | 22.89 | 22.52 | 20.78 | 21.19 | 22.00 | 18.32 | 17.98 |
| ポーランド | 31.59 | 25.79 | 27.76 | 26.97 | 26.55 | 24.13 | 23.19 | 23.43 | 22.41 | 21.25 | 22.26 | 22.41 | 18.77 | 17.96 |
| ルーマニア | 23.09 | 20.40 | 21.45 | 20.02 | 21.36 | 19.42 | 17.87 | 17.99 | 17.50 | 16.60 | 17.04 | 17.17 | 15.01 | 14.85 |
| セルビア | 34.29 | 31.27 | 33.33 | 31.30 | 33.96 | 30.38 | 28.46 | 28.04 | 27.86 | 25.53 | 26.28 | 27.13 | 22.64 | 22.51 |
| スロバキア | 26.11 | 21.39 | 23.37 | 21.47 | 22.56 | 20.34 | 19.58 | 19.27 | 19.19 | 17.88 | 18.18 | 18.68 | 15.84 | 15.39 |
| スロベニア | 25.13 | 20.76 | 22.09 | 18.94 | 20.70 | 18.34 | 18.16 | 17.80 | 17.72 | 16.45 | 16.50 | 18.18 | 13.91 | 14.29 |