{"columns":[{"name":"Kumla gårdsväg S (aktiv) (PM2.5) (ug/m3)","type":"double"},{"name":"Kumla gårdsväg N (aktiv) (PM2.5) (ug/m3)","type":"double"},{"name":"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5) (ug/m3)","type":"double"},{"name":"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5) (ug/m3)","type":"double"},{"name":"datetime","type":"timestamp[ns]"}],"n_rows":31,"rows_kept":31,"cut":false,"text_format":"parquet-jsonl-2026-10-02","bounds":{"document_bytes":16777216,"package_text_limit_bytes":33554432,"package_text_slack_bytes":1024,"rows_first":2000,"rows_last":500,"rows_between":2000,"halvings":0,"cell_chars":16384,"cell_head_chars":4096,"vector_min":64,"vector_head_fixed":16,"vector_head_variable":64,"kv_value_chars":1048576,"nesting_max":64,"binary_text":true},"cells_cut":0,"cells_bad_utf8":0,"cells_raw":0,"cells_binary":0,"cells_binary_text":0,"cells_vector":0,"n_row_groups":1,"reader":"pyarrow 23.0.1, python 3.13","created_by":"parquet-cpp-arrow version 17.0.0","schema":{"fields":[{"name":"Kumla gårdsväg S (aktiv) (PM2.5) (ug/m3)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Kumla gårdsväg N (aktiv) (PM2.5) (ug/m3)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5) (ug/m3)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5) (ug/m3)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"datetime","type":"timestamp[ns]","nullable":true,"metadata":null,"children":null}],"parquet":"required group field_id=-1 schema {\n  optional double field_id=-1 Kumla gårdsväg S (aktiv) (PM2.5) (ug/m3);\n  optional double field_id=-1 Kumla gårdsväg N (aktiv) (PM2.5) (ug/m3);\n  optional double field_id=-1 Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5) (ug/m3);\n  optional double field_id=-1 Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5) (ug/m3);\n  optional int64 field_id=-1 datetime (Timestamp(isAdjustedToUTC=false, timeUnit=nanoseconds, is_from_converted_type=false, force_set_converted_type=false));\n}\n"},"kv_metadata":[["ARROW:schema",{"$cut":{"chars":2552,"head":""}}],["pandas","{\"index_columns\": [\"datetime\"], \"column_indexes\": [{\"name\": null, \"field_name\": null, \"pandas_type\": \"unicode\", \"numpy_type\": \"object\", \"metadata\": {\"encoding\": \"UTF-8\"}}], \"columns\": [{\"name\": \"Kumla g\\u00e5rdsv\\u00e4g S (aktiv) (PM2.5) (ug/m3)\", \"field_name\": \"Kumla g\\u00e5rdsv\\u00e4g S (aktiv) (PM2.5) (ug/m3)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Kumla g\\u00e5rdsv\\u00e4g N (aktiv) (PM2.5) (ug/m3)\", \"field_name\": \"Kumla g\\u00e5rdsv\\u00e4g N (aktiv) (PM2.5) (ug/m3)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5) (ug/m3)\", \"field_name\": \"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5) (ug/m3)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5) (ug/m3)\", \"field_name\": \"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5) (ug/m3)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"datetime\", \"field_name\": \"datetime\", \"pandas_type\": \"datetime\", \"numpy_type\": \"datetime64[ns]\", \"metadata\": null}], \"creator\": {\"library\": \"pyarrow\", \"version\": \"17.0.0\"}, \"pandas_version\": \"2.2.2\"}"]]}
[5.025192,null,5.029068,5.12291,"2023-05-01T02:00:00.000000000"]
[3.385479,null,2.128788,1.255709,"2023-05-02T02:00:00.000000000"]
[6.068634,null,2.311169,1.557501,"2023-05-03T02:00:00.000000000"]
[6.607681,null,2.882351,1.905479,"2023-05-04T02:00:00.000000000"]
[8.366119,null,4.087158,1.722616,"2023-05-05T02:00:00.000000000"]
[4.177475,null,3.08395,2.455833,"2023-05-06T02:00:00.000000000"]
[4.099709,null,3.637207,3.121513,"2023-05-07T02:00:00.000000000"]
[6.617523,null,4.897873,4.146675,"2023-05-08T02:00:00.000000000"]
[8.31192,null,null,5.719299,"2023-05-09T02:00:00.000000000"]
[9.122009,null,7.690773,6.818794,"2023-05-10T02:00:00.000000000"]
[9.188309,null,6.931923,6.435547,"2023-05-11T02:00:00.000000000"]
[12.515244,null,6.816177,6.470894,"2023-05-12T02:00:00.000000000"]
[8.548828,null,8.234161,7.403961,"2023-05-13T02:00:00.000000000"]
[8.862961,null,9.199097,8.338562,"2023-05-14T02:00:00.000000000"]
[11.2453,null,10.872818,8.853638,"2023-05-15T02:00:00.000000000"]
[9.797668,null,10.906952,11.098221,"2023-05-16T02:00:00.000000000"]
[4.229706,null,4.678612,5.679054,"2023-05-17T02:00:00.000000000"]
[2.990162,null,1.646484,1.589769,"2023-05-18T02:00:00.000000000"]
[3.724483,null,null,2.322857,"2023-05-19T02:00:00.000000000"]
[3.246174,null,null,2.34845,"2023-05-20T02:00:00.000000000"]
[3.988197,null,3.938618,3.158527,"2023-05-21T02:00:00.000000000"]
[6.222351,null,6.009171,3.972462,"2023-05-22T02:00:00.000000000"]
[5.728073,null,5.374954,4.223335,"2023-05-23T02:00:00.000000000"]
[8.334152,null,7.645393,5.733315,"2023-05-24T02:00:00.000000000"]
[5.393166,null,4.202652,3.514122,"2023-05-25T02:00:00.000000000"]
[4.093529,null,2.795265,2.211658,"2023-05-26T02:00:00.000000000"]
[3.397995,null,2.400917,1.95895,"2023-05-27T02:00:00.000000000"]
[3.911789,null,4.248093,3.807495,"2023-05-28T02:00:00.000000000"]
[2.915855,null,null,2.001152,"2023-05-29T02:00:00.000000000"]
[4.672775,null,null,3.11068,"2023-05-30T02:00:00.000000000"]
[3.50153,null,2.501873,1.848936,"2023-05-31T02:00:00.000000000"]