Assertion: gas's hydrogen sulfide | /r/HasProperty | toxic
Facets:
value: highly
type: DEGREE
Source sentences:
text: Hydrogen sulfide is as toxic as hydrogen cyanide,[clarification needed] and kills by the same mechanism (inhibition of the respiratory enzyme cytochrome oxidase), though hydrogen sulfide is less likely to cause surprise poisonings from small inhaled amounts because of its disagreeable odor.
text: In areas where natural gas is produced at oil wells but is not economical to transport for sale or contains high concentrations of hydrogen sulfide (a toxic gas), it is burned (flared) at well sites.
text: Hydrogen sulfide is a highly toxic and flammable gas