Public Lab Wiki documentation

Open Air

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This is an open source community effort to develop a range of low-cost air quality monitoring and remediation tools. Welcome!

Join in by:

  • Reading about goals and asking great questions
  • Trying (and critiquing) our community-made how-to guides
  • Posting your own how-to guides and mods
  • Building on others’ work; hack and remix the kits to refine and expand them
  • Submit your improvements for inclusion in an upcoming starter kit release or add-on
  • Serving on a Research Review Group for a 3 month period


State-by-state info sheets on indoor air quality assistance and governance (work in progress!)


Add an activity  or request an activity guide you don't see listed

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.

Frequently Asked Questions about air quality

Title Author Updated Likes Comments
Does this plume count as a violation under Method 9 Opacity? (photos) @eustatic 4 months ago 3
What are some good trouble shooting tips for installing/maintaining a PurpleAir? @stevie 4 months ago 4
Does keeping a bucket sample cold extend the time you have to get it to a lab for testing? @stevie 5 months ago 0
What is the most accurate low-cost VOC monitoring method? @tylerknight 5 months ago 3
How to find/request an air emissions permit for a facility in Quebec? @Fleer 5 months ago 1
How long do you need to co-locate an air quality tool to get what you need to calibrate or "ground truth" another tool? @stevie 7 months ago 5
Is there an easy way (app?) to find my elevation above sea level? @stevie 7 months ago 3
What are health and environmental concerns for sewage smell in a home? @stevie 7 months ago 3
What are ways to alert residents to air quality concerns without using cell phones or wifi? @bhamster 8 months ago 2
What are some of the first things you do with air quality monitoring data to better understand it? @bhamster 8 months ago 7
What are ways to monitor for ethylene oxide? @stevie 10 months ago 1
What are air quality indicators you should watch for around a landfill that indicate you should take a grab sample? @stevie 10 months ago 3
Is there a correlation between humidity and particulates in the air? @sarasage 11 months ago 3
How to connect an anemometer to an air particulate monitor? @crispinpierce 11 months ago 0
How subsurface gasses migrate and what allows them to dissipate? Landfill gasses @denissebn_06 12 months ago 4
HOW do i find testing for air quality in my home - specifically for silica? @MaryBandy over 1 year ago 2
What are some affordable methods of air quality monitoring in New Orleans? @purl over 1 year ago 4
Chevron is up for a permit renewal again (under title 5 of the Clean Air Act), we have a 4800 page report on the company, how can we get through it and pull out the valuable info? @stevie over 1 year ago 20
What are your experiences using low-cost VOC sensors outdoors? And other questions about accuracy. @bhamster over 1 year ago 4
Can a successful heavy metal analysis using moss samples be designed for community partners? @stevie almost 2 years ago 2
For the Bucket Monitor, how many tedlar bags do you need per-sampling? @mimiss almost 2 years ago 2
What causes shimmering air above flares? @kgradow1 about 2 years ago 4
Where is non-compliance reported for fencline monitoring? @A_SCH about 2 years ago 1
How accurate is data on WebFire? @ajg434 about 2 years ago 3
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