Population-weighted annual average PM2.5 concentrations (µg/m³) for 143 countries, regions, and territories in 2025, ranked from most to least polluted. Sourced from the IQAir World Air Quality Report 2025, drawing on data from 9,446 cities and over 40,000 regulatory and low-cost monitoring stations worldwide. Source: IQAir World Air Quality Report 2025.
This dataset contains information about countries in terms of their air quality, specifically the average annual PM2.5 concentration in 2025.
The overall score indicates a high level of data quality, with no missing values and accurate information. The completeness, uniqueness, and consistency scores suggest that all data points are unique and consistent with each other. However, the validity score is slightly lower due to potential errors or discrepancies in the data.
1. Monitoring air pollution levels across countries
2. Evaluating the effectiveness of policies aimed at reducing air pollution
3. Identifying high-risk areas for poor air quality
1. The data may not account for regional variations within countries
2. The PM2.5 concentration values are averaged annually, which might not reflect daily or seasonal fluctuations in air quality.
3. The dataset only includes a limited number of countries, which could limit its applicability to global analyses
air_quality, PM2.5, country_data, environmental monitoring
Visualize dataset coverage on a map. Geospatial columns (latitude/longitude, lat/lon, x/y) are detected automatically.
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