FieldCodeDescription
DatasetDatasetThe alphanumeric code used to identify the dataset
SiteSiteCodeThe alphanumeric code used to identify the site
POCPOCThe parameter occurrence code.
DateDateThe date associated with the data value.
ParameterParamCodeThe parameter or substance code.
Data ValueValueThe actual data value.
MethodMethodThe method by which the data was collected, analyzed, and/or processed.
AggregationAggregationThe aggregation, if any, that has been applied to the data.
UncertaintyUncThe uncertainty associated with the data value.
Min. Detection LimitMDLThe minimum detection limit associated with the method/parameter.
UnitUnitThe unit of measurement used to report the data value.
Status FlagStatusFlagThe primary status flag associated with the data value.
Flag #1Flag1A native data flag, often a study- or sample-level flag.
Flag #2Flag2A native data flag, often a detailed or data-point-level flag.
Flag #3Flag3A data flag used for any remaining native flags.
Flag #4Flag4A data flag used for any remaining native flags.
Flag #5Flag5RHR Group flag (e.g. 10 = 20% best, 90 = 20% worst).
AuxValue #1AuxValue1An auxiliary value.
AuxValue #2AuxValue2An auxiliary value.
Site NameSiteNameThe full name of the monitoring site.
LatitudeLatitudeThe latitude of the monitoring site (decimal degrees).
LongitudeLongitudeThe longitude of the monitoring site (decimal degrees).
ElevationElevationThe elevation of the monitoring site (meters above mean sea level).
StateStateThe state or province where the site is located, if applicable.
County FIPSCountyFIPSThe FIPS code of the county where the site is located, if applicable.
EPA Site CodeEPACodeThe site code used by the EPA Air Quality System (AQS).