{"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\"}"]]}
[null,6.693542,5.446732,null,3.641804,null,4.250275,null,4.583214,"2016-04-01T02:00:00.000000000"]
[null,5.001266,5.732399,null,4.073463,null,5.539658,null,4.596619,"2016-04-02T02:00:00.000000000"]
[null,9.746613,9.582855,null,7.67141,null,8.603958,null,8.12561,"2016-04-03T02:00:00.000000000"]
[null,9.293579,8.712616,null,10.428085,null,9.662277,null,9.257706,"2016-04-04T02:00:00.000000000"]
[null,10.274841,9.37616,null,11.578079,null,10.944,null,10.410645,"2016-04-05T02:00:00.000000000"]
[null,13.452057,14.169662,null,14.376953,null,14.943176,null,14.741974,"2016-04-06T02:00:00.000000000"]
[null,6.516495,5.263809,null,5.631798,null,6.775169,null,6.446304,"2016-04-07T02:00:00.000000000"]
[null,3.223888,2.826633,null,2.410782,null,3.319351,null,3.112915,"2016-04-08T02:00:00.000000000"]
[null,4.578041,4.223778,null,3.668427,null,4.693741,null,4.212242,"2016-04-09T02:00:00.000000000"]
[null,8.465103,5.776405,null,4.55571,null,5.965889,null,5.666328,"2016-04-10T02:00:00.000000000"]
[null,13.005966,4.470871,null,4.69873,null,5.604591,null,4.897072,"2016-04-11T02:00:00.000000000"]
[null,10.545197,6.00724,null,4.940422,null,6.350334,null,5.081154,"2016-04-12T02:00:00.000000000"]
[null,10.700699,7.467247,null,5.479912,null,5.707031,null,6.385033,"2016-04-13T02:00:00.000000000"]
[null,5.339386,3.18705,null,2.378578,null,2.236149,null,2.552174,"2016-04-14T02:00:00.000000000"]
[null,4.532135,4.568504,null,3.950901,null,5.592224,null,4.408272,"2016-04-15T02:00:00.000000000"]
[null,9.091339,9.376923,null,8.999359,null,9.919922,null,9.949707,"2016-04-16T02:00:00.000000000"]
[null,6.933388,7.172913,null,6.600037,null,7.112434,null,7.680069,"2016-04-17T02:00:00.000000000"]
[null,2.835285,2.457417,null,2.274109,null,2.855022,null,2.507591,"2016-04-18T02:00:00.000000000"]
[null,2.894924,3.140877,null,2.282993,null,2.613113,null,2.326523,"2016-04-19T02:00:00.000000000"]
[null,3.462101,5.841682,null,2.4431,null,2.824665,null,3.270973,"2016-04-20T02:00:00.000000000"]
[null,null,3.32185,null,3.735378,null,3.161842,null,2.653812,"2016-04-21T02:00:00.000000000"]
[null,2.175972,1.520502,null,1.475143,null,1.522911,null,1.632694,"2016-04-22T02:00:00.000000000"]
[null,2.578754,2.388996,null,2.731747,null,2.780861,null,2.5881,"2016-04-23T02:00:00.000000000"]
[null,4.500282,3.995842,null,4.119743,null,4.028305,null,4.391945,"2016-04-24T02:00:00.000000000"]
[null,4.934799,4.368904,null,4.123199,null,4.581497,null,4.825623,"2016-04-25T02:00:00.000000000"]
[null,5.15847,3.610352,null,4.07444,null,4.976814,null,4.592934,"2016-04-26T02:00:00.000000000"]
[null,4.794693,4.282951,null,4.885002,null,5.282692,null,4.63134,"2016-04-27T02:00:00.000000000"]
[null,4.512489,4.479691,null,4.531921,null,4.443718,null,4.604195,"2016-04-28T02:00:00.000000000"]
[null,3.940075,3.761589,null,4.261681,null,4.514748,null,4.350967,"2016-04-29T02:00:00.000000000"]
[null,9.944565,8.360703,null,9.140854,null,10.496826,null,9.909653,"2016-04-30T02:00:00.000000000"]