https://www.osha.gov/SLTC/hydrogensulfide/hazards.html

Hydrogen sulfide gas causes a wide range of health effects. ... (up to 10 minutes if no other exposure during shift); Construction 8-hour Limit: 10 ppm; Shipyard ...

https://ohsonline.com/articles/2011/09/01/monitoring-h2s-to-meet-new-exposure-standards.aspx

Sep 1, 2011 ... Portable electronic gas detectors worn by workers can provide a warning .... Reliable H2S measurements at sub-ppm levels and selectivity to ...

https://www.alken-murray.com/H2SREM9.HTM

Chart corrected 1/12/2002, due to e-mail from a victim of H2S poisoning. 0.03 ppm. Can smell. Safe for 8 hours exposure. 4 ppm. May cause eye irritation.

https://www.worksafebc.com/en/resources/health-safety/books-guides/hydrogen-sulfide-in-industry?lang=en&direct

H2S is often found in oil and natural gas deposits, and ... 1 ppm = 1 part of gas per million parts of air ... H2S levels of 100 ppm and higher are considered.

http://nasdonline.org/static_content/documents/7397/d002559.pdf

Hydrogen sulfide is a colorless, flammable, extremely hazardous gas with a “ rotten ... Some people who breathed in levels of hydrogen sulfide high enough to.

https://www.cdc.gov/niosh/idlh/7783064.html

Description of Substance: Colorless gas with a strong odor of rotten eggs. ... National Research Council [NRC 1985] Emergency Exposure Guidance Levels ( EEGLs): ... Basis for revised IDLH: The revised IDLH for hydrogen sulfide is 100 ppm ...

https://www.ncbi.nlm.nih.gov/books/NBK219913/

The committee's recommendations for hydrogen sulfide exposure levels are provided ... The 5.0-ppm exposure did not change arterial blood gases, hemoglobin ...

http://octane.nmt.edu/sw-pttc/proceedings/H2S_05/H2S%20Employee%20Safety.pdf

P.E.L. = Permissible Exposure Limit. Defined ... H2S is a highly flammable and explosive gas. H2S fires produce a toxic gas. ... L.E.L. H2S = 4.3% or 43,000 ppm .

https://fyi.extension.wisc.edu/agsafety/files/2016/09/H2S-health-hazards.pdf

Hydrogen sulfide is a colorless, flammable, extremely hazardous gas with a “ rotten ... Some people who breathed in levels of hydrogen sulfide high enough to.

https://www.blacklinesafety.com/blog/h2s-gas-need-know

Mar 24, 2017 ... Hydrogen Sulfide, or H2S gas is a colorless, flammable, toxic gas ... Ceiling Limit: 20 ppm; General Industry Peak Limit: 50 ppm (up to 10 ...