WorldDataRank / Environment
Compare Pm2.5 Exposure across 20 selected countries in the Americas using World Bank data for 2023. Values are measured in micrograms per cubic meter.
Data year: 2023 Source: World Bank Last refreshed:
The latest sufficiently complete World Bank data for the selected countries is from 2023. Retrieval date and data year are different; no newer values are inferred.
Key findings
- Peru has the highest observed value at 31.1 µg/m³.
- Canada has the lowest observed value at 6.6 µg/m³.
- The median across 20 reporting countries is 17.2 µg/m³.
- The difference between the highest and lowest values is 24.5 µg/m³.
Comparison across selected countries in the Americas. Values in micrograms per cubic meter. Bar lengths start at zero; the table below provides the same observations.
Complete selected-country ranking
| Rank | Country | Value |
|---|---|---|
| 1 | Peru | 31.1 µg/m³ |
| 2 | Honduras | 30.7 µg/m³ |
| 3 | Guatemala | 29.7 µg/m³ |
| 4 | El Salvador | 29.6 µg/m³ |
| 5 | Bolivia | 28.1 µg/m³ |
| 6 | Chile | 23.1 µg/m³ |
| 7 | Nicaragua | 20.4 µg/m³ |
| 8 | Ecuador | 18.6 µg/m³ |
| 9 | Colombia | 18.4 µg/m³ |
| 10 | Costa Rica | 17.7 µg/m³ |
| 11 | Mexico | 16.6 µg/m³ |
| 12 | Paraguay | 15.3 µg/m³ |
| 13 | Panama | 15.1 µg/m³ |
| 14 | Argentina | 14.3 µg/m³ |
| 15 | Dominican Republic | 13.5 µg/m³ |
| 16 | Brazil | 13.4 µg/m³ |
| 17 | Uruguay | 10.9 µg/m³ |
| 18 | Cuba | 9.4 µg/m³ |
| 19 | United States | 7 µg/m³ |
| 20 | Canada | 6.6 µg/m³ |
What the data shows
The unweighted country mean is 18.5 µg/m³, compared with a median of 17.2 µg/m³. Each reporting country has equal weight; this is not a population-weighted or regional aggregate. The gap between the two highest observed values is 0.4 µg/m³. These comparisons describe the observations and do not establish causes.
Methodology
- Provider
- World Bank
- Dataset
- PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)
- Indicator ID
- EN.ATM.PM25.MC.M3
- Data year
- 2023
- Units
- micrograms per cubic meter
- Coverage
- 20 of 20 selected countries in the Americas.
Source: World Bank: PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) (2023)
Rankings use the cited source values without imputation or interpolation. Display rounding does not affect rank.
Technical details
- Coverage threshold
- Minimum 18 reporting countries.
- Countries included
- Peru, Honduras, Guatemala, El Salvador, Bolivia, Chile, Nicaragua, Ecuador, Colombia, Costa Rica, Mexico, Paraguay, Panama, Argentina, Dominican Republic, Brazil, Uruguay, Cuba, United States, Canada
- Countries excluded (missing observations; ISO3 codes)
- None
- Ranking direction
- descending
- Sorting
- Exact source values; equal values share competition rank. Ties display by ascending country ID, then record ID.
- Statistics
- Unweighted arithmetic mean, median, and highest minus lowest. Derived decimals use half-up rounding; source values remain exact.
Why a newer year was not selected
- 2026: 0 available observations; 18 required.
- 2025: 0 available observations; 18 required.
- 2024: 0 available observations; 18 required.
Caveats
This is a selected-country comparison, not a global ranking. Missing countries may affect the distribution. A higher value does not necessarily imply a better outcome. Source observations may be revised.