Assertion: uv filter | /r/HasProperty | detected at ppb
Facets:
value: in surface water
type: LOCATION
value: in wastewater
type: LOCATION
value: with maximum concentrations in the summertime
type: TEMPORAL
Source sentences:
text: Several UV filters have been detected at ppb or ppt levels[vague] in surface water and wastewater, with maximum concentrations in the summertime.