gretchengehrke 56 research notes and 289 wiki edits

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.



Joined over 4 years ago



Net Neutrality: resources for action

by gretchengehrke over 1 year ago | 2 | 3,416 | 2







Colorado Regulations Hotsheet

by gretchengehrke over 2 years ago | 1 | 496 | 5



Oil Testing Kit Beta Challenge

by gretchengehrke over 2 years ago | 2 | 493 | 1



Activity Categories

by gretchengehrke over 2 years ago | 8 | 641 | 3



Coal Ash and Citizen Monitoring

by gretchengehrke over 3 years ago | 3 | 1,815 | 4








Oil Testing Kit -- mixing 5W30 20W30

by gretchengehrke over 3 years ago | 2 | 1,997 | 1


Oil Testing Kit -- discerning 5W30 20W30

by gretchengehrke over 3 years ago | 2 | 1,267 | 2


Hydrocarbon standard samples for kits

by gretchengehrke about 4 years ago | 4 | 1,996 | 2


'Smartphone App for Residential Testing of Formaldehyde' Paper published (Open Access)

by nshapiro about 1 month ago | 5 | 173 | 7

We're excited to announce that the exposure chamber validation and field test of our open-source ...

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What happens when the mining stops? Focus on Reclamation

by mlamadrid over 2 years ago | 0 | 531 | 1

Article by Gretchen Gehrke, [Mathew Lippincott](h...

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Determining wind direction with a kite and compass

by mathew almost 2 years ago | 2 | 370 | 2

During [PM hotspot monitoring](https://publiclab.org/notes/mathew/04-28-2017/practicing-a-pm-hots...

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Refining the user interface of a community science app

by nshapiro about 1 year ago | 5 | 209 | 3

Smartphone App for Residential Testing of Formaldehyde (SmART-Form) The [SmART-Form project]...

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Formaldehyde Monitoring Open Call on Tuesday, January 16th at 3:00 pm ET

by nshapiro about 1 year ago | 1 | 541 | 1

Hi Everyone, We are hosting an Open Call on Tuesday, January 16th at 3:00 pm ET, to discuss an o...

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Silver Linings of Community Science

by mlamadrid over 1 year ago | 0 | 145 | 0

Article by Gretchen Gehrke, Public Lab for [Commu...

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How is the changing environmental governance landscape affecting YOUR work?

by mlamadrid over 1 year ago | 0 | 129 | 0

Article by Public Lab Staff for [Community Science Forum: Changing Environmental Governance Lands...

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how open data practices help science research

by liz over 1 year ago | 0 | 267 | 1

lead image from https://www.nature.com/articles/s41559-017-0160 Posting an interesting article...

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Draft: Collect a sample for laboratory analysis

by warren over 1 year ago | 2 | 414 | 2

This is a draft, adapted from the DIY Oil Testing guide, authored wi...

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Smartphone App for Residential Testing of Formaldehyde (SMART-FORM) Interim report

by nshapiro over 1 year ago | 6 | 390 | 2

Below is the interum report of the NSF-funded SMART-FORM project, lead by Karen Dannemiller of Oh...

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Practicing a PM hotspot survey in New Auburn, WI

by mathew almost 2 years ago | 6 | 451 | 2

Attempting a Hotspot survey in New Auburn, WI with: @Stevie, @Gretchen, @Warren, @marlokeno, Jonn...

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Site Survey for a Minivol

by mathew almost 2 years ago | 0 | 462 | 1

Heather and Bruce Andersen live in Bloomer, Wisconsin, and want to setup a [MiniVol to identify d...

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Pollutant Discharge Permits

by mlamadrid about 2 years ago | 0 | 171 | 0

Article by Gretchen Gehrke for [Community Science...

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Public Lab awarded NSF funding to help develop low-cost community formaldehyde monitoring technique

by nshapiro over 2 years ago | 2 | 847 | 5

(Header image: A woman in Oklahoma attempts to document formaldehyde's effects on her son with he...

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What goes into choosing a topic name?

by liz over 2 years ago | 2 | 492 | 3

_above: sketch of figuring out how to organize "air" into a research area, and which methods are ...

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What makes a good activity?

by warren over 2 years ago | 13 | 1,070 | 3

In our continuing shift towards using the new Q&A feature and the new Activity grids as a framewo...

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The many types of evidence

by warren over 2 years ago | 16 | 587 | 2

As a followup to our [introductory post](https://publiclab.org/notes/warren/08-18-2016/introducin...

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Q&A enables automated FAQ

by liz over 2 years ago | 0 | 540 | 1

Asking and answering questions is at the very heart of Public Lab. It's how we get started, it's ...

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Check out these Activity Grids

by liz over 2 years ago | 9 | 1,653 | 8

The sheer number of posts on publiclab.org by contributors from all over the world about 1) h...

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Introducing the Environmental Evidence Project, a blog series from Public Lab

by warren over 2 years ago | 7 | 5,495 | 7

Hello everyone -- Jeff Warren and Gretchen Gehrke here, Public Lab's Research Director and Data Q...

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Plant Air Remediation Field Test #2 (Georgia)

by nshapiro over 2 years ago | 6 | 2,281 | 5

This post is in collaboration with the community science practitioners of Silent Disaster, a g...

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Documenting Runoff with Photography

by mlamadrid over 2 years ago | 0 | 598 | 0

Article by Gretchen Gehrke for [Community Science...

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Airborne Silica and Regulations

by mlamadrid over 2 years ago | 0 | 645 | 0

Article by Gretchen Gehrke for [Community Science...

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How do I do website change detection and notification?

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cfastie asked about about 1 year ago

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Formaldehyde levels

Ag8n asked about about 1 year ago

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How to select a site for hydrogen sulfide testing?

warren asked about over 1 year ago

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answered on Nov 28, 2017 0

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Who is developing smart-form?

liz asked about over 1 year ago

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How do I collect a sample for laboratory analysis?

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warren asked about over 1 year ago

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answered on Jan 30, 2018 0

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Natural Disinfectant

Mempet asked about over 1 year ago

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Water Filter Effectiveness

Mempet asked about over 1 year ago

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answered on Sep 05, 2017 1

answered on Dec 04, 2017 0

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What are soil sampling protocols being used by groups along the gulf coast?

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stevie asked about over 1 year ago

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What do the terms attainment and nonattainment mean?

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liz asked about over 1 year ago

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answered on Aug 03, 2017 0

answered on Aug 03, 2017 2

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What is your favorite program to plot data from a data logger?

gretchengehrke asked about over 1 year ago

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Sensor: ORP versus PH

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MadTinker asked about over 1 year ago

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answered on Jul 05, 2017 1

answered on Jul 05, 2017 0

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View these maps at MapKnitter.org »

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