Author Topic: Purple Air map question  (Read 977 times)

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Offline bleomycin

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Purple Air map question
« on: August 10, 2018, 12:06:43 AM »
Looking at the purple air map there is a solid inner circle and an outer ring. Some sensors in my area are reporting green inner circle with a red (or different color than inner) outer ring. Can anyone please explain what this means? I've attached a screenshot as an example. Sorry if this is explained somewhere else I didn't see any explanation on their website or FAQ.
« Last Edit: August 10, 2018, 12:32:38 PM by bleomycin »

Offline Forever

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Re: Purple Air map question
« Reply #1 on: August 10, 2018, 06:51:21 PM »
Just doing a quick look it may be the Laser Temperature.

Offline bleomycin

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Re: Purple Air map question
« Reply #2 on: August 10, 2018, 07:52:41 PM »
Just doing a quick look it may be the Laser Temperature.

Just to add a bit more info, in the screenshot I posted the sensors with the red rings are downwind of a large forest fire so I thought perhaps it had something to do with larger particle count or smoke? No idea...

Offline mighty3507

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Re: Purple Air map question
« Reply #3 on: August 11, 2018, 01:05:23 AM »
Funny, I have a purple air sensor and I have not noticed the rings before. Maybe it is new or the air quality has been more stable. With the fires,  the aq has been a bit unstable.  I think it may be a trend indication. The outer ring is 24hrs ago working towards the center to the current reading. Maybe??



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Offline ConligWX

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Re: Purple Air map question
« Reply #4 on: August 11, 2018, 04:20:44 AM »
You'd be best to ask this question on PurpleAir's Facebook page. perhaps Adrian can answer that more specifically.

https://www.facebook.com/groups/purpleair/

Offline bleomycin

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Re: Purple Air map question
« Reply #5 on: August 11, 2018, 01:24:26 PM »
I received a reply via email from Adrian about this. He said: "The rings are the averages - the ones you see in the row of boxes when clicking on a sensor."

Offline Forever

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Re: Purple Air map question
« Reply #6 on: August 19, 2018, 09:43:24 AM »
Well it was cool while it lasted. The web site was redesigned and they removed a lot of the cool information that was there before.

Offline wvdkuil

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Re: Purple Air map question
« Reply #7 on: August 19, 2018, 10:28:49 AM »
Well it was cool while it lasted. The web site was redesigned and they removed a lot of the cool information that was there before.
But you can compare your station with other stations, very nice.
Wim
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