{"columns":[{"name":"Tulegatan 9 (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":"Tulegatan 9 (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 Tulegatan 9 (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":2124,"head":""}}],["pandas","{\"index_columns\": [\"datetime\"], \"column_indexes\": [{\"name\": null, \"field_name\": null, \"pandas_type\": \"unicode\", \"numpy_type\": \"object\", \"metadata\": {\"encoding\": \"UTF-8\"}}], \"columns\": [{\"name\": \"Tulegatan 9 (aktiv) (PM2.5) (ug/m3)\", \"field_name\": \"Tulegatan 9 (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\"}"]]}
[2.635925,2.123466,1.894985,"2022-08-01T02:00:00.000000000"]
[2.691437,2.816826,1.822001,"2022-08-02T02:00:00.000000000"]
[3.403835,3.416679,3.005817,"2022-08-03T02:00:00.000000000"]
[4.687256,5.497131,4.998787,"2022-08-04T02:00:00.000000000"]
[9.825745,10.977524,null,"2022-08-05T02:00:00.000000000"]
[2.456226,2.240292,null,"2022-08-06T02:00:00.000000000"]
[2.542809,2.44315,null,"2022-08-07T02:00:00.000000000"]
[4.027611,3.904022,null,"2022-08-08T02:00:00.000000000"]
[3.830246,3.53521,null,"2022-08-09T02:00:00.000000000"]
[4.476646,3.483807,3.273781,"2022-08-10T02:00:00.000000000"]
[3.403904,3.421196,3.832378,"2022-08-11T02:00:00.000000000"]
[4.013313,4.237442,3.494431,"2022-08-12T02:00:00.000000000"]
[3.596886,3.973473,2.574615,"2022-08-13T02:00:00.000000000"]
[3.609856,3.884823,3.210487,"2022-08-14T02:00:00.000000000"]
[8.682358,9.749115,9.409363,"2022-08-15T02:00:00.000000000"]
[11.269836,12.097763,12.697617,"2022-08-16T02:00:00.000000000"]
[10.989807,12.194427,12.913589,"2022-08-17T02:00:00.000000000"]
[11.238113,12.42955,9.323532,"2022-08-18T02:00:00.000000000"]
[11.725952,13.070877,11.869293,"2022-08-19T02:00:00.000000000"]
[10.599915,12.186523,13.08049,"2022-08-20T02:00:00.000000000"]
[3.464512,3.597794,4.124916,"2022-08-21T02:00:00.000000000"]
[3.270954,3.079002,2.918373,"2022-08-22T02:00:00.000000000"]
[4.620667,4.372803,2.789345,"2022-08-23T02:00:00.000000000"]
[2.721001,2.275333,1.635765,"2022-08-24T02:00:00.000000000"]
[3.540775,3.344208,1.485315,"2022-08-25T02:00:00.000000000"]
[5.209854,5.375854,3.842384,"2022-08-26T02:00:00.000000000"]
[11.524963,12.566483,10.565613,"2022-08-27T02:00:00.000000000"]
[2.275288,2.488483,2.582909,"2022-08-28T02:00:00.000000000"]
[1.293201,1.402216,1.158543,"2022-08-29T02:00:00.000000000"]
[1.105968,1.13662,0.820794,"2022-08-30T02:00:00.000000000"]
[1.379122,1.495251,0.937333,"2022-08-31T02:00:00.000000000"]