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Hydrogen sulfide is toxic to humans and most other animals by inhibiting cellular respiration in a manner similar to hydrogen cyanide. When it is inhaled or its salts are ingested in high amounts, damage to organs occurs rapidly with symptoms ranging from breathing difficulties to convulsions and death.
Animals and humans naturally produce some hydrogen sulfide in their body; researchers have proposed that the gas is used to regulate metabolic activity and body temperature, which would explain the above findings. [18] Two recent studies cast doubt that the effect can be achieved in larger mammals.
Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.
The current "trinity" of gasotransmitters, nitric oxide, carbon monoxide, and hydrogen sulfide, have ironically been discarded as useless toxic gases throughout history. These molecules are a classic example of dose-dependent hormesis such that low-dose is beneficial whereas absence or excessive dosing is toxic. The beneficial effects of these ...
Sulfur medications such as phenacetin, metoclopramide, dapsone, phenzopyridine, and trimethoprim-sulfamethoxazole; hydrogen-sulfide-producing intestinal bacteria, such as Morganella morganii: Risk factors: Pulmonary arteriovenous malformation: Prevention: Avoidance of sulfur-containing compounds including drugs: Treatment: Blood transfusions
A hydrogen sulfide leak on Oct. 10, 2025 at the facility killed 2 people and injured dozens. The facility where the incident occurred was a refinery that processes crude oil to produce gasoline ...
Sewer gases may include hydrogen sulfide, ammonia, methane, esters, carbon monoxide, sulfur dioxide and nitrogen oxides. Improper disposal of petroleum products such as gasoline and mineral spirits contribute to sewer gas hazards. Sewer gases are of concern due to their odor, health effects, and potential for creating fire or explosions.
The humans who have been infected worked with poultry or livestock. As of this reporting, the CDC states that the virus can't be spread from human to human. If you're concerned about H5N1, speak ...