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Celsius","highest_flag":null,"aqs_parameter_category":null},{"_id":99,"datetime_est":"2016-01-01T00:00:00.000","site":"Flag Plaza","parameter":"OUT_T","is_valid":true,"report_value":"-0.2","unit":"DEGC","unit_description":"Degrees Celsius","highest_flag":null,"aqs_parameter_category":"Meteorological"},{"_id":100,"datetime_est":"2016-01-01T00:00:00.000","site":"Flag Plaza","parameter":"INT_T","is_valid":true,"report_value":"23.6","unit":"DEGC","unit_description":"Degrees Celsius","highest_flag":null,"aqs_parameter_category":null}], "fields": [{"id": "_id", "type": "int"}, {"id": "datetime_est", "type": "timestamp", "info": {"label": "DateTime", "notes": "Eastern Standard Time hour readings were collected during."}}, {"id": "site", "type": "text", "info": {"label": "Site", "notes": "The site of the monitor at which the reading was taken."}}, {"id": "parameter", "type": "text", "info": {"label": "Parameter", "notes": "Air quality parameter being forecast. Parameters include CO (carbon monoxide), NO2 (nitrogen dioxide) and PM25_RH35_GCC (PM2.5 - tiny inhalable particles (with diameters of 2.5 micrometers or less), which are unhealthy to breathe in)."}}, {"id": "is_valid", "type": "bool", "info": {"label": "Valid Flag", "notes": "Indicator for if the reading for that hour returned a valid number.  1 = Valid, 0 = Invalid"}}, {"id": "report_value", "type": "text", "info": {"label": "Report Value", "notes": "Reading value reported"}}, {"id": "unit", "type": "text", "info": {"label": "Unit", "notes": "Unit the reported value is measured in"}}, {"id": "unit_description", "type": "text", "info": {"label": "Unit Description", "notes": "Description of the unit"}}, {"id": "highest_flag", "type": "text", "info": {"label": "Highest Flag", "notes": "Highest flag value from the reading period, may or may not result in invalidation. For flag definitions, see https://data.wprdc.org/dataset/allegheny-county-air-quality/resource/01297a0a-4160-41b3-8caf-90f7857ab7bd"}}, {"id": "aqs_parameter_category", "type": "text", "info": {"label": "AQS Parameter Category", "notes": "Air Quality System Category (if applicable)"}}], "total": 12735449}}