{"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\"}"]]}
[4.163307,3.960503,2.994461,"2021-10-01T02:00:00.000000000"]
[9.746567,9.877548,8.166504,"2021-10-02T02:00:00.000000000"]
[16.763733,null,14.671844,"2021-10-03T02:00:00.000000000"]
[17.389557,17.332794,15.283966,"2021-10-04T02:00:00.000000000"]
[8.285873,7.991501,7.306839,"2021-10-05T02:00:00.000000000"]
[8.425858,8.221909,8.656311,"2021-10-06T02:00:00.000000000"]
[7.009834,7.502029,5.086838,"2021-10-07T02:00:00.000000000"]
[7.66098,6.957756,6.495934,"2021-10-08T02:00:00.000000000"]
[8.706467,8.338104,7.514549,"2021-10-09T02:00:00.000000000"]
[10.606979,10.448059,8.980392,"2021-10-10T02:00:00.000000000"]
[7.974869,7.160553,6.43364,"2021-10-11T02:00:00.000000000"]
[null,1.837276,0.948514,"2021-10-12T02:00:00.000000000"]
[2.49181,2.29591,1.111208,"2021-10-13T02:00:00.000000000"]
[3.278225,2.080818,1.6649,"2021-10-14T02:00:00.000000000"]
[2.003262,1.925503,1.80579,"2021-10-15T02:00:00.000000000"]
[1.718697,1.464279,2.055363,"2021-10-16T02:00:00.000000000"]
[1.497608,null,0.842504,"2021-10-17T02:00:00.000000000"]
[2.872993,null,1.005236,"2021-10-18T02:00:00.000000000"]
[5.070213,4.936485,2.091843,"2021-10-19T02:00:00.000000000"]
[2.702332,2.831341,2.581757,"2021-10-20T02:00:00.000000000"]
[3.017143,2.880867,2.439266,"2021-10-21T02:00:00.000000000"]
[1.421286,1.060225,0.512728,"2021-10-22T02:00:00.000000000"]
[3.373753,null,1.51351,"2021-10-23T02:00:00.000000000"]
[4.236,null,2.480965,"2021-10-24T02:00:00.000000000"]
[6.910835,7.368965,5.035568,"2021-10-25T02:00:00.000000000"]
[8.544601,7.863213,6.292915,"2021-10-26T02:00:00.000000000"]
[3.018082,2.825165,2.364719,"2021-10-27T02:00:00.000000000"]
[3.863365,3.714569,2.684555,"2021-10-28T02:00:00.000000000"]
[13.723846,12.740128,9.119141,"2021-10-29T02:00:00.000000000"]
[19.700226,20.276001,16.031555,"2021-10-30T02:00:00.000000000"]
[18.916901,19.632446,17.604248,"2021-10-31T02:00:00.000000000"]