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19d
Is the Air Quality Index enough? What the AQI can — and can't — tell you about how healthy the atmosphere is.
While some AQI readings are based on low-cost sensor data, others are based on regulatory-grade air monitors. “The regulatory-grade air monitors used to calculate AQI are extensively calibrated ...
Yahoo
19d
Is the Air Quality Index enough? What the AQI can — and can't — tell you about how healthy the atmosphere is.
The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...
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