Public Lab Wiki documentation



Hydrogen Sulfide

510 views | Last edited by Gaurav over 1 year ago | #476


This is the organizing page for research related to hydrogen sulfide in Public Lab.

What is hydrogen sulfide, what are its effects, and where is it found?

Hydrogen sulfide, with the chemical formula H2S, is a flammable gas that has a pungent odor at low concentrations and is odorless at higher concentrations. It can be a respiratory irritant and a neurotoxin. Read more about hydrogen sulfide health effects.

Hydrogen sulfide is naturally formed in low-oxygen conditions with sulfate present, such as in organic-rich sediments and thus in petrochemical source rocks. Upon exposure to oxygen, hydrogen sulfide readily oxidizes to sulfur dioxide or sulfate, and generally reacts within hours to days. Read more about hydrogen sulfide sources and spatial and temporal variation

How are hydrogen sulfide emissions and exposures regulated?

In the United States, hydrogen sulfide emissions are only federally regulated to the extent that they contribute to sulfur dioxide formation, and thus acid rain. These emissions are regulated through the Prevention of Significant Deterioration of major stationary sources review and permitting. Exposure to hydrogen sulfide is mostly regulated in terms of occupational exposure, with very few states regulating ambient exposure to this toxin. Read more about hydrogen sulfide regulations

How can hydrogen sulfide be measured?

While there is no federal regulatory method for hydrogen sulfide in the US, labs, agencies, and oilfield workers often measure hydrogen sulfide gas through several different means:

  • badges or glass tubes that change color
  • continuously sampling electronic sensors, some worn by oilfield workers
  • air grab sampling, as by the Bucket Brigades, tested with gas chromatography

We're compiling information about the pros, cons, prices, and sensitivity/limitations of these techniques: What are different commercially available hydrogen sulfide detection methods?

Do-It-Yourself approaches to detection

There are three prototype, low-cost hydrogen sulfide detection methods currently being explored by Public Lab community members. These include:

Help out! Please help link the above bullet points to corresponding pages across this site.


Questions

We can't make progress on these techniques and resources without addressing our unknowns. Please ask questions to help shape the direction of our work!

Title Author Updated Likes
Is there more information on the "Corrosion Coupon" hydrogen sulfide test kit? @warren over 1 year ago
What lab tests are available for hydrogen sulfide, and how much do they cost? @warren over 1 year ago
What are different commercially available hydrogen sulfide detection methods? @warren over 1 year ago
Does your state have air quality standards for hydrogen sulfide? @gretchengehrke over 1 year ago
Are there occupational exposure rules limiting exposure to hydrogen sulfide? @gretchengehrke over 1 year ago
Are there air quality standards for hydrogen sulfide? @gretchengehrke over 1 year ago
How to select a site for hydrogen sulfide testing? @warren over 1 year ago
How can we safely try out and evaluate a hydrogen sulfide test? @warren over 1 year ago
What's the best setup for a copper rod or copper plate test for DIY hydrogen sulfide detection? @warren over 1 year ago
Can we determine hydrogen sulfide concentration, or a threshold presence/absence using the copper pipe method? @gretchengehrke over 1 year ago
What is the hydrogen sulfide concentration range that can be monitored using a copper tarnish method? @gretchengehrke over 1 year ago
Effective low-cost water filters to remove hydrogen sulfide? @gretchengehrke over 1 year ago
What methods are available for doing air grab samples for hydrogen sulfide? @stevie over 1 year ago
What are the relative rates of hydrogen sulfide oxidation in ambient air? @gretchengehrke almost 2 years ago
Show more

Ask a question  or help answer future questions on this topic


Related pages

See other related wiki pages here


Activities

These activities are to guide you to test out hydrogen sulfide detection methods or use these tools in the field:

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.


Where can I find more information?

Two particularly good resources are listed below. Other hydrogen sulfide wiki pages (mentioned above) include additional relevant resources.

  1. Agency for Toxic Substance and Disease Registry. 2016. Hydrogen Sulfide Fact Sheet. https://www.atsdr.cdc.gov/ToxProfiles/tp114-c1-b.pdf.

  2. National Research Council. 2010. Acute Exposure Guidelines. https://www.epa.gov/sites/production/files/2014-11/documents/hydrogen_sulfide_final_volume9_2010.pdf.


8 sub-pages

Public Lab is open for anyone and will always be free. By signing up you'll join a diverse group of community researchers and tap into a lot of grassroots expertise.

Sign up