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 |
| アンチグアバーブーダ | 19.28 | 18.92 | 17.42 | 17.60 | 17.23 | 17.56 | 18.06 | 18.15 | 19.80 | 19.92 | 19.02 | 18.92 | 19.06 | 19.70 |
| ボリビア | 82.79 | 63.07 | 58.49 | 30.58 | 27.32 | 28.07 | 26.10 | 26.94 | 27.46 | 28.05 | 26.54 | 25.17 | 24.48 | 22.88 |
| キューバ | 20.92 | 21.40 | 19.36 | 18.91 | 19.67 | 19.63 | 19.91 | 20.76 | 21.40 | 19.75 | 20.13 | 20.92 | 20.34 | 21.24 |
| ドミニカ | 20.48 | 20.02 | 18.40 | 18.43 | 18.07 | 18.60 | 19.05 | 19.28 | 21.02 | 21.03 | 20.17 | 20.31 | 20.04 | 20.67 |
| エクアドル | 46.99 | 43.21 | 42.66 | 21.73 | 19.59 | 20.87 | 19.86 | 20.28 | 20.17 | 20.74 | 19.25 | 18.39 | 17.77 | 16.66 |
| ニカラグア | 24.94 | 25.41 | 24.42 | 20.63 | 23.01 | 20.42 | 22.19 | 20.34 | 20.81 | 19.66 | 19.20 | 17.52 | 14.98 | 16.81 |
| セントルシア | 23.27 | 22.97 | 21.00 | 21.05 | 20.61 | 21.05 | 21.82 | 22.26 | 23.97 | 24.08 | 23.08 | 23.27 | 23.07 | 23.76 |
| セントビンセント・グレナディーン | 23.86 | 23.38 | 21.22 | 21.25 | 20.81 | 21.18 | 22.03 | 22.47 | 24.20 | 24.33 | 23.45 | 23.40 | 23.41 | 23.93 |
| ベネズエラ（ボリバル共和国） | 22.84 | 23.17 | 21.57 | 20.16 | 21.69 | 19.30 | 19.96 | 19.29 | 19.30 | 18.85 | 19.08 | 16.34 | 14.85 | 15.26 |