# PM10

**URL:** https://forum.airnowtech.org/c/aqi/pm10/32.md

[Latest](https://forum.airnowtech.org/latest.md) · [Categories](https://forum.airnowtech.org/categories.md) · [Tags](https://forum.airnowtech.org/tags.md)

---

## [About the PM10 category](https://forum.airnowtech.org/t/about-the-pm10-category/260)

<div class="topic-metadata">

**Author:** [@mwhylton](https://forum.airnowtech.org/u/mwhylton)\
**Replies:** 0

</div>

---

## [Daily and Hourly AQI - PM10](https://forum.airnowtech.org/t/daily-and-hourly-aqi-pm10/263)

<div class="topic-metadata">

**Author:** [@mwhylton](https://forum.airnowtech.org/u/mwhylton)\
**Replies:** 0\
**Last updated:** [April 10, 2018, 9:22pm UTC](https://forum.airnowtech.org/t/daily-and-hourly-aqi-pm10/263 "2018-04-10T21:22:14Z")

</div>

Daily PM10 AQI The daily PM10 AQI is calculated by taking the 24-hour concentration average from midnight to midnight (Local Standard Time) and converting to AQI using the PM10 cutpoints. 75%, or 18/24 hours of data are…