When this is announced for real and we hear legitimate agencies notifying the public i will then believe.
However, A few posters worked in the field and stated it is a concern and they are given warning badges if exposed. Sounds serious.
In addition, a simple wikipedia search tells you that this stuff does exist in petroleum and natural gas.
" Small amounts of hydrogen sulfide occur in crude petroleum, but natural gas can contain up to 90%. Volcanoes and some hot springs (as well as
cold springs) emit some H2S, where it probably arises via the hydrolysis of sulfide minerals, i.e. MS + H2O → MO + H2S.
About 10% of total global emissions of H2S is due to human activity. By far the largest industrial route to H2S occurs in petroleum refineries: The
hydrodesulfurization process liberates sulfur from petroleum by the action of hydrogen. The resulting H2S is converted to elemental sulfur by partial
combustion via the Claus process, which is a major source of elemental sulfur. Other anthropogenic sources of hydrogen sulfide include coke ovens,
paper mills (using the sulfate method), and tanneries. H2S arises from virtually anywhere where elemental sulfur comes in contact with organic
material, especially at high temperatures.
Hydrogen sulfide can be present naturally in well water. In such cases, ozone is often used for its removal. An alternative method uses a filter with
manganese dioxide. Both methods oxidize sulfides to less toxic sulfates."
Also may have caused a global extinction in the past:
H2S implicated in mass extinctions
Hydrogen sulfide has been implicated in some of the several mass extinctions that have occurred in the Earth's past. In particular, a buildup of
hydrogen sulfide in the atmosphere may have caused the Permian-Triassic extinction event 252 million years ago.
Organic residues from these extinction boundaries indicate that the oceans were anoxic (oxygen-depleted) and had species of shallow plankton that
metabolized H2S. The formation of H2S may have been initiated by massive volcanic eruptions, which emitted CO2 and methane into the atmosphere, which
warmed the oceans, lowering their capacity to absorb oxygen that would otherwise oxidize H2S. The increased levels of hydrogen sulfide could have
killed oxygen-generating plants as well as depleted the ozone layer, causing further stress. Small H2S blooms have been detected in modern times in
the Dead Sea and in the Atlantic ocean off the coast of Namibia.