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Improving WHO urban air pollutant database
This research paper evaluates the 2018 WHO global ambient air quality database, which tracks PM10 and PM2.5 levels across thousands of cities. It notes that while high-income regions report low pollution, low- and middle-income regions in Africa, Southeast Asia, and Latin America face high levels and resource barriers. The paper warns that the database has been used to draw misleading city-to-city comparisons and proposes improvements based on criteria like data completeness and quality control.
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Document type: Research paper
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