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PSI vs AQI: Understanding Different Air Quality Scores
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What Happened?
Air quality scores can differ between apps due to varying methods of calculation. This month, Singapore's air quality was affected by smoke from Indonesian wildfires.
Key points
- The Air Quality Index (AQI) measures pollutants like PM2.5 and ozone.
- The Pollutant Standards Index (PSI) uses a region-specific calculation method.
- Singapore's PSI reported unhealthy levels during the haze episode on October 10.
- Different calculation methods and averaging periods can lead to differing scores.
- Higher readings indicate greater air pollution and health risks.
- Children and older adults are more vulnerable to high pollution levels.
Key insights
- Different countries have unique standards for measuring air quality.
- Local advisories should be followed for health recommendations during poor air quality.
- Comparing pollutant concentrations can provide a clearer picture of air quality.
Why it matters
Understanding air quality scores helps individuals make informed health decisions.
Source
India Today
