Assertion: pollution | /r/CapableOf | worsen with readings of up to 700
Facets:
value: by january
type: TEMPORAL
Source sentences:
text: By January 2013 the pollution had worsened with official Beijing data showing an average AQI over 300 and readings of up to 700 at individual recording stations while the US Embassy recorded over 755 on 1 January and 800 by 12 January 2013.