It is a weighted compound of the different pollutants measured by Foobot and is referred to as the global index.
Thresholds
| Global Index value | Air quality's level |
| 0 - 25 | Great |
| 25 - 50 | Good |
| 50 - 75 | Fair |
| 75 - 100 | Poor |
Keep your average global pollution below 50% for the benefit of your health and well-being.
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