If I'm reading the technical documentation currently, there are two EPA AQI methods.
AQI is an averaged amount over a 24 hour period for pm2.5 and pm10. So, once the day is over, this is the one that would be used for the calendar day.
The NowCast is computed from the most recent 12 hours, but weighing the most recent hours of data more heavily than an ordinary 12-hour average. It is used in lieu of a 24-hour average PM concentration in the calculation of the AQI until an entire calendar day is completed.
Curious what your plans are, because averaging out is a hard thing to do.
If I'm reading the technical documentation currently, there are two EPA AQI methods.
AQI is an averaged amount over a 24 hour period for pm2.5 and pm10. So, once the day is over, this is the one that would be used for the calendar day.
The NowCast is computed from the most recent 12 hours, but weighing the most recent hours of data more heavily than an ordinary 12-hour average. It is used in lieu of a 24-hour average PM concentration in the calculation of the AQI until an entire calendar day is completed.
Curious what your plans are, because averaging out is a hard thing to do.