Although there is not yet enough data to document chronic exposure, readings taken in South County indicate cause for concern ...

Typically, they have monitored H2S using the more stringent operating exposure limit (OEL) -- i.e., a 10 ppm ceiling averaged over one minute.

Eight other sites had readings over 100 ppm. Exposure to 100 ppm of hydrogen sulfide is immediately dangerous to life or health, according to the National Institute for Occupational Safety and Health.

EXPOSURE to high levels of hydrogen sulfide gas is a well-documented and understood hazard. OSHA and NIOSH standards have long recognized this acute risk with appropriate short-term maximum ...

Because exposure to H2S can cause serious injury or even death, J. J. Keller developed its new handbook: ‘H2S: Understand the Dangers’. Hydrogen sulfide is a colorless, flammable, toxic gas that can ...

Dr. Kaye Kilburn, M.D. and professor of medicine at the University of Southern California, suggests that exposure to H2S may cause long-term, irreversible human health effects. She studied 19 ...

Even tiny amounts can pose risks Hydrogen sulfide is naturally present in the environment. Some natural sources include volcanoes, swamps, and human and animal waste.

Eight other sites had readings over 100 ppm. Exposure to 100 ppm of hydrogen sulfide is immediately dangerous to life or health, according to the National Institute for Occupational Safety and Health.

An oilfield worker and his wife were killed by hydrogen sulfide exposure in Odessa in 2019. Hydrogen sulfide dissipates and would be found in lower concentrations in public areas near the wells.