Readings are model estimates for your area (about 10–40 km), not a single monitoring station. Guideline values are the WHO 2021 air-quality guidelines.
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| Time | Your risk | Level | PM2.5 µg/m³ | PM10 µg/m³ | Feels like °C |
|---|
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How's your breathing today?
How your score is worked out
1. Air. Each hour, PM2.5, PM10, NO₂ and the 8-hour ozone average are converted to US EPA sub-indices (the same yardstick everywhere, so a score in Delhi means the same as one in London). The worst one sets the hour's air level, scaled so EPA "Unhealthy" (150) equals 50.
2. Your sensitivity. Asthma or COPD, heart disease, pregnancy, diabetes, allergies, and age under 12 or over 60 raise the score, by up to 70%.
3. Your exposure. Mostly indoors lowers it by 20%; outdoor work or a two-wheeler commute raises it by 20%.
4. Heat. When it feels hotter than 32°C, up to 25 points are added, more for elders, children, pregnancy, heart disease and outdoor workers.
The AQI number in the "Air quality now" card follows your country's official scale; you can switch it.