PropertyValue
nif:beginIndex
  • 0 (xsd:integer)
nif:broaderContext
nif:endIndex
  • 202 (xsd:integer)
nif:isString
  • In terms of data standardisation, the collected PM2.5 values at 2:00, 8:00, 14:00 and 20:00 from different observation points are averaged to derive the daily and monthly PM2.5 concentrations of a city.
rdf:type