Assertion: hydrogen sulfide's concentration | /r/HasProperty | 984 μg/m3
Facets:
Source sentences:
text: Based on inspection of figure 1 from this study, the lowest concentration associated with evidence of reduced photosynthesis (an approximately 10% reduction) after exposure for 1 to 2 hours was 984 μg/m3 (32.7 μmol/m3).