# How is AQHI calculated?

**URL:** <https://community.purpleair.com/t/how-is-aqhi-calculated/8630>\
**Category:** Data\
**Created:** [May 15, 2024, 1:47am UTC](https://community.purpleair.com/t/how-is-aqhi-calculated/8630 "2024-05-15T01:47:31Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![Sleepypup](https://avatars.discourse-cdn.com/v4/letter/s/ea5d25/32.png) [@Sleepypup](https://community.purpleair.com/u/Sleepypup)\
**Post date:** [May 19, 2024, 5:11pm UTC](https://community.purpleair.com/t/how-is-aqhi-calculated/8630/8 "2024-05-19T17:11:02Z")

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Hello Kyle,

Adding to the confusion for us in Canada is that the AQHI reported by ECCC is not consistent across Canada. You are likely aware that. Summer 2023 obviously had lots of people looking at the PA map in Canada and the reported AQHI was not lining up with what ECCC reports. Link to a discussion from last summer. [Canadian AQHI seems very random - Data - PurpleAir Community](https://community.purpleair.com/t/canadian-aqhi-seems-very-random/6316)

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