56 research notes 33 questions

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air-quality blog barnraising blog-submission answered barnstar:basic barnraising-2017 category:test-limits activity:hydrogen-sulfide activity:h2s-copper-pipe

air-quality

541 people discussing

Creating a "videocamera" for passive dust collection over time? by @natematias
Enviro-Track by @rmd6502
Public Comment on Minnesota's Regional Haze State Implementation Plan by @JuliaGuerrein
 6 notes |  1 question |  19 comments by @gretchengehrke
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answered

5 people discussing

Where can diffusion tubes for detecting nitrogen dioxide be found in different parts of the world? by @warren
DIY Salinity Measurements with Coqui and/or Multimeter? by @Bronwen
How do I interpret the relationship between the schema.rb file and the models? by @bsugar
 0 notes |  8 questions |  34 comments by @gretchengehrke
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barnraising

15 people discussing

Update from the Board of Directors by @jmacha
Important Update from Public Lab by @jmacha
Learning for Justice in a Climate Changing World by @amocorro
 1 note |  0 questions |  14 comments by @gretchengehrke
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barnraising-2017

1 person discussing

Folding-Beijing: A Board Game based on Beijing eviction action by @shanlter
Can you use rubbing alcohol or nail polish remover for prepping copper for Hydrogen Sulfide test? by @zengirl2
Local Perspectives at Barnraising 2017 by @a1ahna
 1 note |  0 questions |  10 comments by @gretchengehrke
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blog

293 people discussing

Update from the Board of Directors by @jmacha
Important Update from Public Lab by @jmacha
Community Air Monitoring Highlighted in Media Clip; False Solutions Promised for Our State by @awoolverton1
 5 notes |  0 questions |  15 comments by @gretchengehrke
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blog-submission

8 people discussing

Construye tu propio espectroscopio para el móvil by @coaat97
A South Dakota resident's story by @eightballocto
GSoC 2021 Proposal - Education-related Usability Upgrades by @anirudhprabhakaran3
 1 note |  0 questions |  0 comments by @gretchengehrke
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copper

0 people discussing

Using UVC or "deep UV" light to detect lead by fluorescence by @warren
Using the Wheestat in a real time device by @klplum
Literature Review: Copper Rod Analysis by @ErikHanley11
 0 notes |  2 questions |  2 comments by @gretchengehrke
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data-logging

5 people discussing

EnviroDIY Monitoring Station by @StroudCenterScott
Best Method(s) of Datalogging Location in the Field Without Cell Reception? by @sarasage
What are ways to make dense CSV data more readable? by @warren
 0 notes |  1 question |  5 comments by @gretchengehrke
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design

4 people discussing

Introducing a new Dashboard for PublicLab.org by @warren
MA research project 'Speculative Future on Mars: Online Co-design Workshop on saturdays' by @miles70
Masters research project 'Speculative Future on Mars: Online Co-design Workshop on saturdays' by @miles70
 0 notes |  1 question |  6 comments by @gretchengehrke
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dust

9 people discussing

how do we determine if sand is silica by @MegSheehan
Log Simple Air Sensor data to SD card by @imvec
Simple air sensor assembly notes by @natevw
 2 notes |  0 questions |  7 comments by @gretchengehrke
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event

59 people discussing

Louzaouiñ Seeds Of Contend by @xavcc
Bioblitz Event: MN Land and Manoomin Protection Proyect by @michelleiL
Open Call: "Game Over Formosa Plastics" Report Back by @michelleiL
 1 note |  0 questions |  0 comments by @gretchengehrke
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filters

0 people discussing

Analysis of Dual-Bandpass NDVI Filters using Python by @ektopyrotic
How to do the white-balancing for the RED filter? by @xmv79667
Building Snake Plant Air Remediation kit in Bangalore, India by @deeptalaxmibharadwaj
 0 notes |  1 question |  1 comment by @gretchengehrke
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filtration

0 people discussing

Effective low-cost water filters to remove hydrogen sulfide? by @gretchengehrke
PureLab：Experiment and Installing Water Filters Record In Banmentun by @shanlter
Inexpensive HEPA Filter Fan project to reduce air pollution by @Melissa
 0 notes |  1 question |  0 comments by @gretchengehrke
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formaldehyde

7 people discussing

Statistics for Action Air Quality Guide by @kgradow1
Are there any other professional instruments that measures different VOC besides PID (photoionisation detector)? by @stevie
What is the air flow requirement for air sampling tubes? Any inexpensive method? by @BostonFern
 1 note |  1 question |  11 comments by @gretchengehrke
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frac-sand

4 people discussing

Communicating expectations from Chippewa County residents concerned with frac sand mines by @bhamster
How to connect an anemometer to an air particulate monitor? by @crispinpierce
Appreciating Reporting Support Materials by @stevie
 3 notes |  0 questions |  6 comments by @gretchengehrke
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h2s

0 people discussing

Detect Hydrogen Sulfide (Fart ) in Public Toilets with Arduino UNO/NodeMCU(ESP8266) by @silentsairam
Response to Alternative Copper Sheet Preparation Method on Public Lab by @ErikHanley11
Qualitative Time Lapse of Copper Corrosion by @ErikHanley11
 1 note |  6 questions |  5 comments by @gretchengehrke
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h2s-copper-pipe

1 person discussing

Response to Alternative Copper Sheet Preparation Method on Public Lab by @ErikHanley11
Qualitative Time Lapse of Copper Corrosion by @ErikHanley11
Two Rounds of Copper Rod Test Making by @ErikHanley11
 1 note |  3 questions |  12 comments by @gretchengehrke
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hydrogen-sulfide

2 people discussing

What are health and environmental concerns for sewage smell in a home? by @stevie
[Talk Recording] Mobilizing People to Act on Air Pollution with the Bucket Air Monitor - a Community Science Tool by @amocorro
Response to Alternative Copper Sheet Preparation Method on Public Lab by @ErikHanley11
 2 notes |  7 questions |  14 comments by @gretchengehrke
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indoor-air-quality-monitoring

1 person discussing

What is Particulate Matter (PM) and why should you be concerned? by @amocorro
Extra Super Volatile by @cfastie
Nano particle monitoring by @cfastie
 0 notes |  1 question |  2 comments by @gretchengehrke
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ingredients

0 people discussing

What is a good resource for learning about chemical and toxicological information? by @gretchengehrke
Spectrometry by @cosettespafford
 0 notes |  1 question |  1 comment by @gretchengehrke
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knowflow

3 people discussing

KnowFlow NB-IoT version by @rockets
KnowFlow will have a NB-IoT version one in few weeks by @rockets
Testing the DF Robot pH Sensor by @wmacfarl
 0 notes |  1 question |  2 comments by @gretchengehrke
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law-and-policy

11 people discussing

Huber seeks permits to remove bald eagle nests by @JuliaGuerrein
Expertise on Minnesota Native American and Tribal Law by @JuliaGuerrein
Do you have any examples of community-based lawyering or policy work? by @JuliaGuerrein
 0 notes |  5 questions |  6 comments by @gretchengehrke
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microscopes

7 people discussing

Replicating IBM's Lensless, Holographic, RPi Microscope? by @wln215
driver usb camera community microscope by @francesco49
Build a low-magnification "dissection microscope" for microplastics by @warren
 1 note |  0 questions |  0 comments by @gretchengehrke
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particle-monitoring

1 person discussing

Report: Particle Visualization Event by @stevie
Particle Visualization Event in Hixton, WI by @gretchengehrke
What is the scenario under which you would use an optical vs. a passive monitor to measure dust? by @kgradow1
 2 notes |  0 questions |  2 comments by @gretchengehrke
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particulate-matter

2 people discussing

Open Call: "Game Over Formosa Plastics" Community Report Back Video by @michelleiL
July PM 2.5 Data by @tylerknight
June PM 2.5 Data by @tylerknight
 1 note |  0 questions |  4 comments by @gretchengehrke
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particulates

0 people discussing

Is there a predictive relationship between the number of PM 2.5 and smaller airborne particulates compared to the mass of the same ug per cubic meter? by @Tomp
Event: Clean Air Council + Delaware Riverkeeper Network by @liz
Particulate sensor using a STBM271 by @david_uwi
 1 note |  0 questions |  6 comments by @gretchengehrke
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pm

12 people discussing

July PM 2.5 Data by @tylerknight
June PM 2.5 Data by @tylerknight
A Quick Look at the Health Impacts of Air Pollutants by @awoolverton1
 4 notes |  0 questions |  10 comments by @gretchengehrke
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riffle

14 people discussing

Oil and Gas Hardware Fellow Introduction by @wmacfarl
Voltage generation for conductivity sensor by @roberts_ecofarm
DIY conductivity Sensors by @roberts_ecofarm
 0 notes |  1 question |  7 comments by @gretchengehrke
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sensitivity

0 people discussing

What is the hydrogen sulfide concentration range that can be monitored using a copper tarnish method? by @gretchengehrke
Table for choosing monitoring tools by @warren
Increasing brightness of fluorescence spectra by @warren
 0 notes |  1 question |  0 comments by @gretchengehrke
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smart-form

2 people discussing

'Smartphone App for Residential Testing of Formaldehyde' Paper published (Open Access) by @nshapiro
SmART-Form Paper Published by Public Health Nursing by @nshapiro
Looking for hands-on help with a datalogger! by @Bronwen
 0 notes |  1 question |  6 comments by @gretchengehrke
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threshold

0 people discussing

What is the hydrogen sulfide concentration range that can be monitored using a copper tarnish method? by @gretchengehrke
 0 notes |  1 question |  0 comments by @gretchengehrke
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validation

0 people discussing

How can we safely try out and evaluate a hydrogen sulfide test? by @warren
What is the hydrogen sulfide concentration range that can be monitored using a copper tarnish method? by @gretchengehrke
Dustduino potentiometer testing by @imvec
 0 notes |  1 question |  0 comments by @gretchengehrke
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water-filters

0 people discussing

WATER-QUALITY: SUMMER 2019 QUEENSBRIDGE TECH LAB COMMUNITY SCIENCE PROJECT by @SadiePrego
Effective low-cost water filters to remove hydrogen sulfide? by @gretchengehrke
Water Filter Effectiveness by @Mempet
 0 notes |  1 question |  1 comment by @gretchengehrke
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water-quality

166 people discussing

Question: Validity of Aquaculture Water Quality Test Kits by @jamontalbs
Chattahoochee Challenge: Connecting Students Across a Watershed by @rebeccaMw
Op-Ed about the Talon-Rio Tinto Mine by @noah_ben_furman
 2 notes |  1 question |  23 comments by @gretchengehrke
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wisconsin

1 person discussing

Where can polluted soils be placed? by @amocorro
What are people doing about polluted soils that get put back as fill? by @amocorro
Sentinel Training Online by @stevie
 2 notes |  0 questions |  3 comments by @gretchengehrke
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@gretchengehrke

@gretchengehrke

Joined over 8 years ago

92 followers • 0 following

I'm the Data and Advocacy Steward with Public Lab, and am an avid environmentalist living in Durham, North Carolina. My background is in environmental geochemistry, and I am interested in the intersections and overlaps between environmental science and social justice. Joining Public Lab, I am looking forward to getting involved in environmental protection in a more tangible way.

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