Assertion: methane's concentration | /r/HasProperty | reduced to 21–80 ppm
Facets:
value: from 14,000–47,400 ppm
type: OTHER
value: dramatically
type: MANNER
value: in treated waters
type: LOCATION
Source sentences:
text: Analysis of treated samples revealed that the concentration of Na (the main cation) in produced waters was reduced dramatically from 14,000–47,400 ppm in the feed to 21–80 ppm in treated waters.