{"columns":[{"name":"Danderydsvägen (aktiv) (PM2.5)","type":"double"},{"name":"E4 Häggvik (aktiv) (PM2.5)","type":"double"},{"name":"Ekmans väg 11 (aktiv) (PM2.5)","type":"double"},{"name":"Sollentunavägen 192 (aktiv) (PM2.5)","type":"double"},{"name":"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5)","type":"double"},{"name":"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5)","type":"double"},{"name":"Eriksbergsskolan (inaktiv) (PM2.5)","type":"double"},{"name":"Skälbyskolan (inaktiv) (PM2.5)","type":"double"},{"name":"Töjnaskolan (inaktiv) (PM2.5)","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":"Danderydsvägen (aktiv) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"E4 Häggvik (aktiv) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Ekmans väg 11 (aktiv) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Sollentunavägen 192 (aktiv) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Eriksbergsskolan (inaktiv) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Skälbyskolan (inaktiv) (PM2.5)","type":"double","nullable":true,"metadata":null,"children":null},{"name":"Töjnaskolan (inaktiv) (PM2.5)","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 Danderydsvägen (aktiv) (PM2.5);\n  optional double field_id=-1 E4 Häggvik (aktiv) (PM2.5);\n  optional double field_id=-1 Ekmans väg 11 (aktiv) (PM2.5);\n  optional double field_id=-1 Sollentunavägen 192 (aktiv) (PM2.5);\n  optional double field_id=-1 Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5);\n  optional double field_id=-1 Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5);\n  optional double field_id=-1 Eriksbergsskolan (inaktiv) (PM2.5);\n  optional double field_id=-1 Skälbyskolan (inaktiv) (PM2.5);\n  optional double field_id=-1 Töjnaskolan (inaktiv) (PM2.5);\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":4000,"head":""}}],["pandas","{\"index_columns\": [\"datetime\"], \"column_indexes\": [{\"name\": null, \"field_name\": null, \"pandas_type\": \"unicode\", \"numpy_type\": \"object\", \"metadata\": {\"encoding\": \"UTF-8\"}}], \"columns\": [{\"name\": \"Danderydsv\\u00e4gen (aktiv) (PM2.5)\", \"field_name\": \"Danderydsv\\u00e4gen (aktiv) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"E4 H\\u00e4ggvik (aktiv) (PM2.5)\", \"field_name\": \"E4 H\\u00e4ggvik (aktiv) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Ekmans v\\u00e4g 11 (aktiv) (PM2.5)\", \"field_name\": \"Ekmans v\\u00e4g 11 (aktiv) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Sollentunav\\u00e4gen 192 (aktiv) (PM2.5)\", \"field_name\": \"Sollentunav\\u00e4gen 192 (aktiv) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5)\", \"field_name\": \"Torkel Knutssonsgatan, urban bakgrund Stockholm (aktiv, urban_bakgrund) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5)\", \"field_name\": \"Norr Malma, regional bakgrund (aktiv, regional_bakgrund) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Eriksbergsskolan (inaktiv) (PM2.5)\", \"field_name\": \"Eriksbergsskolan (inaktiv) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Sk\\u00e4lbyskolan (inaktiv) (PM2.5)\", \"field_name\": \"Sk\\u00e4lbyskolan (inaktiv) (PM2.5)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"T\\u00f6jnaskolan (inaktiv) (PM2.5)\", \"field_name\": \"T\\u00f6jnaskolan (inaktiv) (PM2.5)\", \"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\"}"]]}
[4.733551,5.176888,4.24572,null,4.535553,4.563934,4.646889,null,null,"2018-09-01T02:00:00.000000000"]
[5.713387,5.731224,4.96962,null,4.973412,4.131577,5.432152,null,null,"2018-09-02T02:00:00.000000000"]
[null,7.239876,5.469597,null,4.981743,6.292656,5.587189,null,null,"2018-09-03T02:00:00.000000000"]
[5.635994,8.166763,6.810127,null,5.929741,7.008018,6.645149,null,null,"2018-09-04T02:00:00.000000000"]
[5.780365,8.589569,8.013779,null,6.60611,7.940208,7.06723,null,null,"2018-09-05T02:00:00.000000000"]
[5.668747,6.381218,7.055725,null,6.822578,6.034004,7.121559,null,null,"2018-09-06T02:00:00.000000000"]
[10.092392,10.835938,11.291138,null,10.815125,13.517746,11.244339,null,null,"2018-09-07T02:00:00.000000000"]
[9.96637,10.592667,10.40686,null,10.692459,14.343994,12.012085,null,null,"2018-09-08T02:00:00.000000000"]
[3.644028,4.076538,4.38282,null,null,6.284904,4.120476,null,null,"2018-09-09T02:00:00.000000000"]
[4.093071,5.243393,4.928146,null,null,4.431389,5.216721,null,null,"2018-09-10T02:00:00.000000000"]
[3.433395,4.92775,4.895035,null,null,5.317566,4.671646,null,null,"2018-09-11T02:00:00.000000000"]
[2.089012,2.634708,3.703304,null,null,2.718327,3.171196,null,null,"2018-09-12T02:00:00.000000000"]
[1.414444,1.697447,3.215919,null,null,1.504862,2.011234,null,null,"2018-09-13T02:00:00.000000000"]
[1.873434,2.034443,3.109337,null,2.124554,2.866806,2.497894,null,null,"2018-09-14T02:00:00.000000000"]
[1.375198,1.605888,1.927315,null,1.639631,1.996952,1.88666,null,null,"2018-09-15T02:00:00.000000000"]
[1.123075,1.291397,1.412943,null,1.259571,1.248125,1.473406,null,null,"2018-09-16T02:00:00.000000000"]
[1.930479,2.63345,2.833977,null,1.953011,2.501221,2.599739,null,null,"2018-09-17T02:00:00.000000000"]
[3.825527,4.200134,5.395027,null,4.05381,4.403137,4.417526,null,null,"2018-09-18T02:00:00.000000000"]
[4.785233,5.344116,5.823997,null,5.344582,7.00119,6.543793,null,null,"2018-09-19T02:00:00.000000000"]
[4.163429,4.965309,6.30143,null,4.646614,6.540276,5.394196,null,null,"2018-09-20T02:00:00.000000000"]
[5.133095,5.798447,6.226654,null,6.086716,7.60379,6.543327,null,null,"2018-09-21T02:00:00.000000000"]
[1.805231,2.152317,2.546753,null,2.228844,2.501057,2.716305,null,null,"2018-09-22T02:00:00.000000000"]
[0.914837,1.372534,1.646992,null,1.116972,1.320791,1.567476,null,null,"2018-09-23T02:00:00.000000000"]
[0.852314,1.731798,3.769356,null,0.918284,0.72758,1.067549,null,null,"2018-09-24T02:00:00.000000000"]
[1.088125,1.36521,2.501335,null,0.987975,0.93512,1.380077,null,null,"2018-09-25T02:00:00.000000000"]
[1.433895,1.900442,2.21069,null,1.619501,1.882511,2.187862,null,null,"2018-09-26T02:00:00.000000000"]
[1.015049,1.475166,2.098366,null,1.223803,0.86686,1.443756,null,null,"2018-09-27T02:00:00.000000000"]
[0.755965,1.337105,1.192385,null,0.839431,0.72265,0.77158,null,null,"2018-09-28T02:00:00.000000000"]
[1.182367,1.234131,1.541328,null,1.33147,1.368202,1.275648,null,null,"2018-09-29T02:00:00.000000000"]
[1.555063,1.847986,2.20726,null,1.853287,2.306873,1.991806,null,null,"2018-09-30T02:00:00.000000000"]