🎈 Public Lab: gretchengehrke

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Wiki pages recently contributed to

Building a Frac Sand Economic Assessment updated 8 days ago by gretchengehrke
Water Sensors updated 9 days ago by stevie
General Environmental Monitoring Study Strategies updated 3 months ago by gretchengehrke
pDR-1500 updated 3 months ago by mathew
NPDES updated 5 months ago by warren
Massachusetts Indoor Air updated 6 months ago by gretchengehrke
Oklahoma Indoor Air updated 6 months ago by gretchengehrke
Vermont Indoor Air updated 6 months ago by gretchengehrke

gretchengehrke 242 research notes and wiki edits | Admin

Joined over 2 years ago

EPA Method 22: Visual Determination of Fugitive Emissions

by gretchengehrke 5 months ago | 0 | 67 views | 2

**EPA Method 22: Visual Determination of Fugitive Emissions from Material Sources and Smoke Emiss...

EPA Method 9: Visual Determination of the Opacity of Emissions from Stationary Sources

by gretchengehrke 5 months ago | 2 | 123 views | 5

This is a step by step guide to to assess the opacity of emissions, using EPA’s Method 9 “Visual...

Colorado Regulations Hotsheet

by gretchengehrke 9 months ago | 1 | 416 views | 5

As we start to work with community members in Colorado on issues emanating from oil and gas indus...

Thoughts on Method 9 and its utility

by gretchengehrke 9 months ago | 3 | 438 views | 4

Several people in our Public Lab community are concerned about various kinds of airborne emission...

Oil Testing Kit Beta Challenge

by gretchengehrke 9 months ago | 2 | 406 views | 1

_Image courtesy of _ This activity was developed for the [Oil Testing Kit Beta Challenge](...

Common low-cost technique limitations and strategies for impact

by gretchengehrke 10 months ago | 1 | 489 views | 1

With an environmental and environmental health focus, many people coming to Public Lab may be loo...

Activity Categories

by gretchengehrke 11 months ago | 8 | 457 views | 3

A bunch of people here in our community are interested in making our collective work more organiz...

Oil Testing Kit -- Beta tests (with some needed re-dos)

by gretchengehrke over 1 year ago | 3 | 563 views | 0

These are sets of spectra scanned using my Public Lab spectrometer and the oil samples provide...

Coal Ash and Citizen Monitoring

by gretchengehrke almost 2 years ago | 3 | 1,729 views | 4

Photo credit: Living on Earth, http://loe.org/content/2014-02-14/1-dan-river.jpg As a reside...

Formaldehyde Measurement: testing Public Lab's kit with DOH's equipment

by gretchengehrke almost 2 years ago | 11 | 2,855 views | 6

Formaldehyde is one of the most common indoor air pollutants, and is a known respiratory irrit...

Intended Purposes for Different Tools and Techniques

by gretchengehrke almost 2 years ago | 6 | 1,990 views | 11

(Note: have a better name for this? Please suggest it!) Environmental data can be used fo...

Photo Documentation of Turbid Waters for Advocacy

by gretchengehrke almost 2 years ago | 2 | 1,302 views | 4

Photo credit: Bill Hughes If you encounter a discolored stream, taking a photograph an...

Community Mapping to Reevaluate Space in a Refugee Camp

by gretchengehrke almost 2 years ago | 0 | 3,170 views | 2

image by Claudia Martinez Mansell _see related note: http://publiclab.org/notes/claudsmm/08...

Case Study: Ecological Assessment and Management using Balloon- and Kite-collected Aerial Images

by gretchengehrke almost 2 years ago | 0 | 2,484 views | 4

This is Part 2 of an ongoing series of case studies by Gretchen Ge...

Case Study: Using Aerial Imagery to Pressure Industrial Polluters into Stormwater Compliance

by gretchengehrke almost 2 years ago | 8 | 1,900 views | 2

This is Part 1 of an ongoing series of case studies by Gretchen Ge...

Oil Testing Kit -- mixing 5W30 20W30

by gretchengehrke about 2 years ago | 2 | 1,952 views | 1

Since the oils in the Oil Testing Kit 5W30 and 20W50 are distinguishable by their fluorescence s...

Oil Testing Kit -- discerning 5W30 20W30

by gretchengehrke about 2 years ago | 2 | 1,220 views | 2

I am taking spectra of the five oils in the Oil Testing Kit, and I forgot to label one of the cu...

Hydrocarbon standard samples for kits

by gretchengehrke over 2 years ago | 4 | 1,938 views | 2

Hi All, We have some questions for prepping the [Oil Testing Kits](http://publiclab.org/wiki/...

Asked Answered

Has anyone used ground glass joints in water sensor enclosures?

asked by gretchengehrke 2 days ago | 0 | 28 | 0

question:sensor-enclosures

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Can commercially available water sensors work with DIY data loggers?

asked by gretchengehrke 2 days ago | 0 | 68 | 1

question:data-logging question:water-sensors

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What information do I need to assess if a data logger and sensor will be compatible?

asked by gretchengehrke 2 days ago | 0 | 56 | 1

question:data-logging datalogging question:water-sensors water-sensors

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What do you do if your environmental concern is linked to your neighbor's paycheck?

asked by gretchengehrke 11 days ago | 1 | 66 | 1

question:question question:barnraising question:advocacy question:communication

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Do you know of environmental justice applications of remote sensing data?

asked by gretchengehrke 11 days ago | 0 | 47 | 0

question:question question:general question:barnraising question:remote-sensing

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Do you have resources on odor logs and odor reporting platforms?

Answered

asked by gretchengehrke 14 days ago | 0 | 47 | 0

question:air-quality question:odor question:smell

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Can we use a timelapse or video camera to monitor particulate air plumes?

asked by gretchengehrke 10 months ago | 0 | 495 | 3

photo-monitoring timelapse with:warren question:timelapse

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Sensor: ORP versus PH

Accepted

MadTinker asked about 27 days ago

Answers by gretchengehrke

answered on Jul 05, 2017 1

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Are there any methods to distinguish where particulate matter in the air comes from?

Accepted

stevie asked about 2 months ago

Answers by gretchengehrke

answered on May 23, 2017 0

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What are important aspects to consider about replication on the website and in the community?

liz asked about 10 months ago

Answers by gretchengehrke

answered on Sep 29, 2016 1

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How can i know if my plant-based air filter is working?

liz asked about 10 months ago

Answers by gretchengehrke

answered on Sep 27, 2016 1

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Can we use a timelapse or video camera to monitor particulate air plumes?

gretchengehrke asked about 10 months ago

Answers by gretchengehrke

answered on Oct 29, 2016 0

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Is CALPUFF a good air quality modeling tool

marlokeno asked about 10 months ago

Answers by gretchengehrke

answered on Sep 22, 2016 0

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View these maps <a href='//mapknitter.org/profile/gretchengehrke'>at MapKnitter.org »</a>

Title	Creation date	Image

gretchengehrke was awarded the Basic Barnstar by warren for their work published in Case Study: Using Aerial Imagery to Pressure Industrial Polluters into Stormwater Compliance .

gretchengehrke was awarded the Basic Barnstar by warren for their work published in Intended Purposes for Different Tools and Techniques.

gretchengehrke was awarded the Basic Barnstar by stevie for their work published in EPA Method 9: Visual Determination of the Opacity of Emissions from Stationary Sources.