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PurpleAir

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Board of Directors

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about 1 month ago

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about 1 month ago

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Inline maps examples

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Getting rid of Cats-Claw Vines

about 1 month ago

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Name your project here

about 1 month ago

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Alternative solar materials

about 2 months ago

eustatic commented on Are there examples where environmental concerns were addressed as a result of people filing complaints (or suspected permit violations)? about 2 months ago

New Orleans residents complained and protested about the illegal fill of City Park wetlands by th...

eustatic commented on Are there examples where environmental concerns were addressed as a result of people filing complaints (or suspected permit violations)? about 2 months ago

After receivingg tens of thousands of complaint letters, the Bayou Bridge Pipeline was modified t...

New page by stevie

Choosing a method for Particulate Matter Monitoring

about 2 months ago

dmunchak commented on Catch Basins 101: How to clean a catch basin with one person in 68 minutes. about 2 months ago

@a1ahna Hi there! Yes, you have my permission to use my photos. Good Luck with your survey! Woul...

Ag8n commented on Do you really need a special filter to filter out ultrafine particulates in the air? about 2 months ago

My expertise is chemistry. But in working in a glp/gmp lab environmenment, I was trained in som...

a1ahna commented on Catch Basins 101: How to clean a catch basin with one person in 68 minutes. about 2 months ago

Hey y'all! This is an excellent overview that I so thankfully stumbled upon while making a surve...

stevie commented on Do you really need a special filter to filter out ultrafine particulates in the air? about 2 months ago

Hey @BostonFern thanks for posting. I don't have an answer for this question, but check out this ...

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sentinel

about 2 months ago

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vrf

about 2 months ago

warren commented on Guia de mapeo colectivo con globos y cometas en español about 2 months ago

Awesome! Also linking to https://publiclab.org/notes/warren/07-01-2017/collaboratively-write-the-...

warren commented on Help make a post-Texas Barnraising zine to document the event about 2 months ago

Just sharing some photos of this awesome zine as it ended up after a lot of editing and design by...

BostonFern commented on Can people make their own masks to protect from coronavirus? about 2 months ago

On the net, I've seen studies about using different material to filter air. Based on my impress...

BostonFern commented on Can people make their own masks to protect from coronavirus? about 2 months ago

I have a few scientific paper to share with you. This paper says that salt can be used to inacti...

cfastie commented on anyone working on dataloggers for snow depth? about 2 months ago

The Arduino snow depth gauge seems to produce good data. It is an ESP8266 and laser rangefinder I...

mimiss commented on Are there any other professional instruments that measures different VOC besides PID (photoionisation detector)? about 2 months ago

I'm becoming familiar with the MeteoMex suite of sensors from @robert_winkler that includes tVOC ...

Ag8n commented on Are there any other professional instruments that measures different VOC besides PID (photoionisation detector)? about 2 months ago

There are a number of other GC detectors, many of which are kind of obscure. Take a look at thos...

Ag8n commented on Are there any other professional instruments that measures different VOC besides PID (photoionisation detector)? about 2 months ago

These instruments are all based on GC detectors. So your best approach is to look at other GC de...

joyofsoy commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

[@mmbaustian](/profile/mmbaustian) did exactly this in Barataria Basin! Curious to know the answe...

joyofsoy commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

Perhaps if you collect both secchi and turbidity data frequently over a long time period at diffe...

joyofsoy commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

Maybe you could make a daily calibration curve?— Diana R. Di Leonardo ([@SwirlingSands](/profile/...

joyofsoy commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

You could maybe make one for a specific site but I'd want to test it over a long time period befo...

joyofsoy commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

And if you were to come up with a conversion factor, I imagine it would probably be very site and...

joyofsoy commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

We shared this question on our social media and received these responses From my understanding, ...

stevie commented on Which is more accurate in measuring formaldehyde: air sampling tubes vs RKI FP-30? about 2 months ago

Sharing info back here from @nshiparo "The air sampling tubes you're talking about are the ones ...

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Agrotóxicos en Cosquín - Argentina

about 2 months ago

Engineerjaykumar commented on Are there simple tests for nitrates in well water? about 2 months ago

I am telling a advice about to use the Perfect construction technology and proper Admixtures in ...

Tarek_Omar commented on Can you relate Secchi disk measurements to turbidity sensor measurements? about 2 months ago

The digital sensor tell the turbidity by measuring how much of a known light intensity reaches it...

icarito commented on My upcoming transition about 2 months ago

Jeff, your guidance and support in the past 5 years we've been working together has been invaluab...

detikskor commented on anyone working on dataloggers for snow depth? about 2 months ago

During blizzards the data will be very noisy, Prediksi Liga but then you also have a record of wh...

Ag8n commented on anyone working on dataloggers for snow depth? about 2 months ago

You have a much better idea in this field than I do. My apologies for any offense I may have caus...

MadTinker commented on anyone working on dataloggers for snow depth? about 2 months ago

SNOTEL uses snow pillows which are devices about 3m x 3m, that sit on the ground and measure the ...

sk9366693 commented on Building a plant-based air purifier kit at Barnraising about 2 months ago

I like Computer Full Form in Hindi thanku so much. I like Sarkari Result thanku so much.

Ag8n commented on anyone working on dataloggers for snow depth? about 2 months ago

The U.S. Maintains a snotel (snow telemetry) network. These are stations that monitor the snow d...

pydevsg commented on My upcoming transition 2 months ago

All the best , have a great journey ahead Sir

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jobs

2 months ago

WHATS THE PRICE OF THE SPECTROMETER 3?

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by dwhite01 3 months ago

Test

by radimir_cacic09 3 months ago





A shared knowledge base for community science

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PurpleAir

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OpenHour Archive

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OpenHour Archive

New edit by joyofsoy 29 days ago - changes

OpenHour Archive

New edit by joyofsoy 29 days ago - changes

OpenHour

New edit by joyofsoy 29 days ago - changes

OpenHour Archive

New edit by joyofsoy 29 days ago - changes

OpenHour Archive

New edit by liz 29 days ago - changes

Board of Directors

New edit by liz about 1 month ago - changes

sandbox-sitemap

New edit by warren about 1 month ago - changes

Inline maps

New page by warren about 1 month ago

Inline maps examples

New page by ExtinctAnimals about 1 month ago

Getting rid of Cats-Claw Vines

New page by warren about 2 months ago

Alternative solar materials

New page by joyofsoy about 2 months ago

sentinel

New page by joyofsoy about 2 months ago

vrf

New page by xose about 2 months ago

Agrotóxicos en Cosquín - Argentina

New page by joyofsoy 2 months ago

jobs

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