Assertion: hydrogen sulfide | /r/PartOf | much as 60
Facets:
Source sentences:
text: Based on the assumption that hydrogen sulfide can make up as much as 60% of total reduced sulfur (Environment Canada 2004b), this corresponds to hydrogen sulfide concentrations of up to 37.8 ppb (52.9 μg/m3) and 1.9 ppb (2.7 μg/m3), respectively.