{"columns":[{"name":"PM10 (OPC) (ug/m3)","type":"double"},{"name":"PM2.5 (OPC, c15) (ug/m3)","type":"double"},{"name":"PM1.0 (OPC, c15) (ug/m3)","type":"double"},{"name":"Air pressure (hPa)","type":"double"},{"name":"Rel_hum (%RH)","type":"double"},{"name":"Air temp (deg.C)","type":"double"},{"name":"CO2 (ppm)","type":"double"},{"name":"Road surface status","type":"double"},{"name":"Road water column (mm)","type":"double"},{"name":"NOx (chemiluminescence) (ug/m3)","type":"double"},{"name":"NO2 (chemiluminescence) (ug/m3)","type":"double"},{"name":"NO (chemiluminescence) 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(%RH)\", \"field_name\": \"Rel_hum (%RH)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Air temp (deg.C)\", \"field_name\": \"Air temp (deg.C)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"CO2 (ppm)\", \"field_name\": \"CO2 (ppm)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Road surface status\", \"field_name\": \"Road surface status\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"Road water column (mm)\", \"field_name\": \"Road water column (mm)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"NOx (chemiluminescence) (ug/m3)\", \"field_name\": \"NOx (chemiluminescence) (ug/m3)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"NO2 (chemiluminescence) (ug/m3)\", \"field_name\": \"NO2 (chemiluminescence) (ug/m3)\", \"pandas_type\": \"float64\", \"numpy_type\": \"float64\", \"metadata\": null}, {\"name\": \"NO (chemiluminescence) (ug/m3)\", \"field_name\": \"NO (chemiluminescence) (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\"}"]]}
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