{"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":30,"rows_kept":30,"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\"}"]]}
[4.716789,4.359795,4.232269,"2022-06-01T02:00:00.000000000"]
[4.117935,4.531296,4.900467,"2022-06-02T02:00:00.000000000"]
[6.393257,5.870079,4.415756,"2022-06-03T02:00:00.000000000"]
[4.36219,4.490433,3.852131,"2022-06-04T02:00:00.000000000"]
[4.149574,3.861202,3.087311,"2022-06-05T02:00:00.000000000"]
[2.319275,2.02615,1.664167,"2022-06-06T02:00:00.000000000"]
[4.852264,4.717102,2.729507,"2022-06-07T02:00:00.000000000"]
[7.420959,6.798119,5.033112,"2022-06-08T02:00:00.000000000"]
[4.942589,4.715569,3.454067,"2022-06-09T02:00:00.000000000"]
[7.01091,6.570808,5.948532,"2022-06-10T02:00:00.000000000"]
[5.410957,5.60627,4.920563,"2022-06-11T02:00:00.000000000"]
[5.122643,4.994095,5.019066,"2022-06-12T02:00:00.000000000"]
[4.261429,4.117439,3.765095,"2022-06-13T02:00:00.000000000"]
[3.450359,2.732754,1.852755,"2022-06-14T02:00:00.000000000"]
[3.502987,2.864529,1.487392,"2022-06-15T02:00:00.000000000"]
[3.864799,4.440842,2.383461,"2022-06-16T02:00:00.000000000"]
[3.789391,null,1.726423,"2022-06-17T02:00:00.000000000"]
[6.964622,7.133797,6.935875,"2022-06-18T02:00:00.000000000"]
[1.881752,1.835186,1.443581,"2022-06-19T02:00:00.000000000"]
[3.406696,3.203827,3.136753,"2022-06-20T02:00:00.000000000"]
[4.563499,4.17173,3.772949,"2022-06-21T02:00:00.000000000"]
[5.705147,5.59491,5.084702,"2022-06-22T02:00:00.000000000"]
[5.309784,5.111176,4.516197,"2022-06-23T02:00:00.000000000"]
[4.589279,4.952698,4.550903,"2022-06-24T02:00:00.000000000"]
[6.654045,7.610985,7.237465,"2022-06-25T02:00:00.000000000"]
[7.423286,8.346466,9.313675,"2022-06-26T02:00:00.000000000"]
[8.357071,10.075272,10.937637,"2022-06-27T02:00:00.000000000"]
[8.496719,10.315308,15.157333,"2022-06-28T02:00:00.000000000"]
[6.631378,7.217728,8.588013,"2022-06-29T02:00:00.000000000"]
[null,14.422302,13.887817,"2022-06-30T02:00:00.000000000"]