{ "schemaVersion": 2, "metadata": { "assembledDate": "2026-09-05", "scope": "Published June 2026 on-site daily ambient and meteorological observations, transcribed from Tables B.1 and B.2.", "operationalExposurePrediction": false, "extraction": "Text extraction checked against rendered table pages; no graph digitisation, no imputation, no unit conversion.", "sourceReportNotRawLoggerData": true }, "stations": [ { "id": "woodfibre_aqms", "name": "Woodfibre LNG AQMS near the floatels", "coordinates": { "datum": "NAD83 / UTM zone 10N", "epsg": 26910, "reportedZone": "10U", "easting_m": 481569, "northing_m": 5501374 }, "locationNote": "Ambient air-quality monitor, not the flare location.", "sourceUrl": "https://woodfibrelng.ca/wp-content/uploads/2026/08/WLNG-AQMS-Monthly-Report-2026-06-June-2026.pdf", "sourcePage": "Section 1, printed page 1 / PDF page 6" }, { "id": "woodfibre_meteorology", "name": "Woodfibre LNG meteorology station near the AQMS", "coordinates": { "datum": "NAD83 / UTM zone 10N", "epsg": 26910, "reportedZone": "10U", "easting_m": 481610, "northing_m": 5501369 }, "instrumentHeightM": null, "instrumentHeightNote": "Instrument heights were not established from the checked monthly report.", "sourceUrl": "https://woodfibrelng.ca/wp-content/uploads/2026/08/WLNG-AQMS-Monthly-Report-2026-06-June-2026.pdf", "sourcePage": "Section 1, printed page 1 / PDF page 6" } ], "datasets": [ { "id": "woodfibre_aqms_june2026", "label": "June 2026 — on-site ambient observations", "stationId": "woodfibre_aqms", "validationLevel": "Level 0 as reported (preliminary validation)", "dateTimeConvention": "Dates and clock times are as printed. Time zone, UTC offset, daylight-saving handling, and hour-beginning versus hour-ending convention are not established in the checked report; do not align to UTC data until confirmed.", "phase": "Construction ambient monitoring", "attribution": "Measured ambient concentrations at the monitor; no attribution to LNG flare operation.", "spatialCoverage": "One AQMS location; no interpolation across Squamish or the 20 km map.", "reportDate": "2026-08-10", "sourceUrl": "https://woodfibrelng.ca/wp-content/uploads/2026/08/WLNG-AQMS-Monthly-Report-2026-06-June-2026.pdf", "sourceSha256": "0e1f83192626a227b559b5ae8a38f244e19f1423b521802fed8d03eb2d27626e", "sourcePages": { "daily": "Table B.1, printed B-1 / PDF page 32", "dailyMeteorology": "Table B.2, printed B-2 / PDF page 33", "station": "Section 1, printed page 1 / PDF page 6", "qa": "Sections 1 and 4.1, printed pages 1, 9–10 / PDF pages 6, 14–15", "passive": "Section 4.2, printed page 11 / PDF page 16; Appendix D certificate of analysis, laboratory page 3 / PDF page 47", "hourlyExtrema": "Section 4.3, printed page 11 / PDF page 16" }, "periodStart": "2026-06-01", "periodEnd": "2026-06-30", "daily": [ { "date": "2026-06-01", "pm25_24h_ug_m3": 8.4, "pm10_24h_ug_m3": null, "tsp_24h_ug_m3": 59.2, "no2_24h_ppb": 13.2, "no2_daily_max_1h_ppb": 21.0 }, { "date": "2026-06-02", "pm25_24h_ug_m3": 10.1, "pm10_24h_ug_m3": null, "tsp_24h_ug_m3": 75.4, "no2_24h_ppb": 17.1, "no2_daily_max_1h_ppb": 27.4 }, { "date": "2026-06-03", "pm25_24h_ug_m3": 9.8, "pm10_24h_ug_m3": null, "tsp_24h_ug_m3": 59.4, "no2_24h_ppb": 18.4, "no2_daily_max_1h_ppb": 31.9 }, { "date": "2026-06-04", "pm25_24h_ug_m3": 6.8, "pm10_24h_ug_m3": 16.5, "tsp_24h_ug_m3": 30.5, "no2_24h_ppb": 8.4, "no2_daily_max_1h_ppb": 21.4 }, { "date": "2026-06-05", "pm25_24h_ug_m3": 6.2, "pm10_24h_ug_m3": 12.4, "tsp_24h_ug_m3": 18.3, "no2_24h_ppb": 7.6, "no2_daily_max_1h_ppb": 14.2 }, { "date": "2026-06-06", "pm25_24h_ug_m3": 5.9, "pm10_24h_ug_m3": 9.8, "tsp_24h_ug_m3": 11.8, "no2_24h_ppb": 5.9, "no2_daily_max_1h_ppb": 12.1 }, { "date": "2026-06-07", "pm25_24h_ug_m3": 5.6, "pm10_24h_ug_m3": 11.3, "tsp_24h_ug_m3": 14.8, "no2_24h_ppb": 6.6, "no2_daily_max_1h_ppb": 10.4 }, { "date": "2026-06-08", "pm25_24h_ug_m3": 5.8, "pm10_24h_ug_m3": 11.7, "tsp_24h_ug_m3": 15.1, "no2_24h_ppb": 8.3, "no2_daily_max_1h_ppb": 12.8 }, { "date": "2026-06-09", "pm25_24h_ug_m3": 5.4, "pm10_24h_ug_m3": 12.8, "tsp_24h_ug_m3": 14.1, "no2_24h_ppb": 9.8, "no2_daily_max_1h_ppb": 14.8 }, { "date": "2026-06-10", "pm25_24h_ug_m3": 5.0, "pm10_24h_ug_m3": 11.4, "tsp_24h_ug_m3": 15.0, "no2_24h_ppb": 7.7, "no2_daily_max_1h_ppb": 16.2 }, { "date": "2026-06-11", "pm25_24h_ug_m3": 7.2, "pm10_24h_ug_m3": 15.8, "tsp_24h_ug_m3": 23.0, "no2_24h_ppb": 10.3, "no2_daily_max_1h_ppb": 17.9 }, { "date": "2026-06-12", "pm25_24h_ug_m3": 7.5, "pm10_24h_ug_m3": 18.2, "tsp_24h_ug_m3": null, "no2_24h_ppb": 9.6, "no2_daily_max_1h_ppb": 18.4 }, { "date": "2026-06-13", "pm25_24h_ug_m3": 8.4, "pm10_24h_ug_m3": 21.6, "tsp_24h_ug_m3": null, "no2_24h_ppb": 11.0, "no2_daily_max_1h_ppb": 23.0 }, { "date": "2026-06-14", "pm25_24h_ug_m3": 9.5, "pm10_24h_ug_m3": 28.5, "tsp_24h_ug_m3": null, "no2_24h_ppb": 12.5, "no2_daily_max_1h_ppb": 21.2 }, { "date": "2026-06-15", "pm25_24h_ug_m3": 14.0, "pm10_24h_ug_m3": 39.3, "tsp_24h_ug_m3": null, "no2_24h_ppb": 20.0, "no2_daily_max_1h_ppb": 39.1 }, { "date": "2026-06-16", "pm25_24h_ug_m3": 9.0, "pm10_24h_ug_m3": 33.1, "tsp_24h_ug_m3": 56.0, "no2_24h_ppb": 12.9, "no2_daily_max_1h_ppb": 25.5 }, { "date": "2026-06-17", "pm25_24h_ug_m3": 8.0, "pm10_24h_ug_m3": 27.7, "tsp_24h_ug_m3": 55.3, "no2_24h_ppb": 10.8, "no2_daily_max_1h_ppb": 17.7 }, { "date": "2026-06-18", "pm25_24h_ug_m3": 10.5, "pm10_24h_ug_m3": 26.9, "tsp_24h_ug_m3": 47.9, "no2_24h_ppb": 12.1, "no2_daily_max_1h_ppb": 19.5 }, { "date": "2026-06-19", "pm25_24h_ug_m3": 10.9, "pm10_24h_ug_m3": 32.7, "tsp_24h_ug_m3": 58.5, "no2_24h_ppb": 12.9, "no2_daily_max_1h_ppb": 20.0 }, { "date": "2026-06-20", "pm25_24h_ug_m3": 9.3, "pm10_24h_ug_m3": 28.3, "tsp_24h_ug_m3": 51.4, "no2_24h_ppb": 10.4, "no2_daily_max_1h_ppb": 20.0 }, { "date": "2026-06-21", "pm25_24h_ug_m3": null, "pm10_24h_ug_m3": 26.9, "tsp_24h_ug_m3": 46.2, "no2_24h_ppb": 11.5, "no2_daily_max_1h_ppb": 19.5 }, { "date": "2026-06-22", "pm25_24h_ug_m3": null, "pm10_24h_ug_m3": 37.3, "tsp_24h_ug_m3": 77.3, "no2_24h_ppb": 13.1, "no2_daily_max_1h_ppb": 21.7 }, { "date": "2026-06-23", "pm25_24h_ug_m3": null, "pm10_24h_ug_m3": 35.0, "tsp_24h_ug_m3": 66.8, "no2_24h_ppb": 15.4, "no2_daily_max_1h_ppb": 29.2 }, { "date": "2026-06-24", "pm25_24h_ug_m3": 12.8, "pm10_24h_ug_m3": 35.5, "tsp_24h_ug_m3": 64.6, "no2_24h_ppb": 16.0, "no2_daily_max_1h_ppb": 25.7 }, { "date": "2026-06-25", "pm25_24h_ug_m3": 9.0, "pm10_24h_ug_m3": 27.1, "tsp_24h_ug_m3": 51.0, "no2_24h_ppb": 13.8, "no2_daily_max_1h_ppb": 22.6 }, { "date": "2026-06-26", "pm25_24h_ug_m3": 6.3, "pm10_24h_ug_m3": 11.5, "tsp_24h_ug_m3": 14.4, "no2_24h_ppb": 8.9, "no2_daily_max_1h_ppb": 16.4 }, { "date": "2026-06-27", "pm25_24h_ug_m3": 6.3, "pm10_24h_ug_m3": 13.1, "tsp_24h_ug_m3": 16.8, "no2_24h_ppb": 7.0, "no2_daily_max_1h_ppb": 12.9 }, { "date": "2026-06-28", "pm25_24h_ug_m3": 6.9, "pm10_24h_ug_m3": 15.3, "tsp_24h_ug_m3": 20.1, "no2_24h_ppb": null, "no2_daily_max_1h_ppb": null }, { "date": "2026-06-29", "pm25_24h_ug_m3": 7.9, "pm10_24h_ug_m3": 17.3, "tsp_24h_ug_m3": 28.7, "no2_24h_ppb": 9.2, "no2_daily_max_1h_ppb": 17.1 }, { "date": "2026-06-30", "pm25_24h_ug_m3": 7.4, "pm10_24h_ug_m3": 17.5, "tsp_24h_ug_m3": 27.3, "no2_24h_ppb": 7.4, "no2_daily_max_1h_ppb": 15.3 } ], "dailyMetadata": { "rounding": "Values retained at the precision printed in Table B.1 (one decimal place).", "averaging": "PM and first NO2 columns are 24-hour averages. Final NO2 column is each date's maximum 1-hour average; the time of the peak is not supplied.", "valid24hCompletenessThresholdPct": 75, "missingValues": "null means the source prints a dash; it is not zero.", "missingIntervals": [ { "fields": [ "pm10_24h_ug_m3" ], "startDate": "2026-06-01", "endDate": "2026-06-03", "reason": "Filter tape error" }, { "fields": [ "tsp_24h_ug_m3" ], "startDate": "2026-06-12", "endDate": "2026-06-15", "reason": "Filter tape error" }, { "fields": [ "pm25_24h_ug_m3" ], "startDate": "2026-06-21", "endDate": "2026-06-23", "reason": "Filter tape error" }, { "fields": [ "no2_24h_ppb", "no2_daily_max_1h_ppb" ], "startDate": "2026-06-28", "endDate": "2026-06-28", "reason": "Table B.1 has both entries unavailable; the report states the cause is unknown." } ], "pm25Treatment": "Report states BAM PM2.5 values from -3 to 0 µg/m³ are adjusted to 0 and values below -3 µg/m³ flagged invalid. This extraction does not repeat that adjustment or impute missing values.", "interpretation": "Compare only matching averaging periods. A month of daily maxima does not establish a multi-year regulatory statistic. Values are ambient measurements during construction and are not flare-specific emissions." }, "meteorologyStationId": "woodfibre_meteorology", "dailyMeteorology": [ { "date": "2026-06-01", "wind_speed_daily_max_m_s": 5.8, "wind_speed_24h_mean_m_s": 1.1, "temperature_daily_min_c": 10.0, "temperature_daily_max_c": 24.9, "temperature_24h_mean_c": 17.3, "relative_humidity_daily_min_pct": 33.6, "relative_humidity_daily_max_pct": 81.6, "relative_humidity_24h_mean_pct": 57.4, "barometric_pressure_daily_min_hpa": 1017.7, "barometric_pressure_daily_max_hpa": 1024.3, "barometric_pressure_24h_mean_hpa": 1020.9, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-02", "wind_speed_daily_max_m_s": 5.9, "wind_speed_24h_mean_m_s": 1.2, "temperature_daily_min_c": 12.4, "temperature_daily_max_c": 25.9, "temperature_24h_mean_c": 18.9, "relative_humidity_daily_min_pct": 31.7, "relative_humidity_daily_max_pct": 80.9, "relative_humidity_24h_mean_pct": 56.1, "barometric_pressure_daily_min_hpa": 1013.1, "barometric_pressure_daily_max_hpa": 1018.7, "barometric_pressure_24h_mean_hpa": 1016.0, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-03", "wind_speed_daily_max_m_s": 6.5, "wind_speed_24h_mean_m_s": 1.3, "temperature_daily_min_c": 14.1, "temperature_daily_max_c": 21.3, "temperature_24h_mean_c": 17.2, "relative_humidity_daily_min_pct": 43.2, "relative_humidity_daily_max_pct": 86.6, "relative_humidity_24h_mean_pct": 66.3, "barometric_pressure_daily_min_hpa": 1013.6, "barometric_pressure_daily_max_hpa": 1018.3, "barometric_pressure_24h_mean_hpa": 1015.6, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-04", "wind_speed_daily_max_m_s": 12.4, "wind_speed_24h_mean_m_s": 3.7, "temperature_daily_min_c": 13.9, "temperature_daily_max_c": 18.6, "temperature_24h_mean_c": 15.8, "relative_humidity_daily_min_pct": 39.7, "relative_humidity_daily_max_pct": 88.3, "relative_humidity_24h_mean_pct": 66.9, "barometric_pressure_daily_min_hpa": 1014.4, "barometric_pressure_daily_max_hpa": 1019.9, "barometric_pressure_24h_mean_hpa": 1017.8, "rainfall_daily_total_mm": 0.2 }, { "date": "2026-06-05", "wind_speed_daily_max_m_s": 8.7, "wind_speed_24h_mean_m_s": 1.9, "temperature_daily_min_c": 9.1, "temperature_daily_max_c": 15.0, "temperature_24h_mean_c": 11.9, "relative_humidity_daily_min_pct": 63.7, "relative_humidity_daily_max_pct": 97.3, "relative_humidity_24h_mean_pct": 83.3, "barometric_pressure_daily_min_hpa": 1011.5, "barometric_pressure_daily_max_hpa": 1014.6, "barometric_pressure_24h_mean_hpa": 1013.1, "rainfall_daily_total_mm": 8.6 }, { "date": "2026-06-06", "wind_speed_daily_max_m_s": 5.8, "wind_speed_24h_mean_m_s": 1.2, "temperature_daily_min_c": 8.8, "temperature_daily_max_c": 15.2, "temperature_24h_mean_c": 11.5, "relative_humidity_daily_min_pct": 65.5, "relative_humidity_daily_max_pct": 97.7, "relative_humidity_24h_mean_pct": 85.6, "barometric_pressure_daily_min_hpa": 1011.8, "barometric_pressure_daily_max_hpa": 1013.7, "barometric_pressure_24h_mean_hpa": 1012.8, "rainfall_daily_total_mm": 5.8 }, { "date": "2026-06-07", "wind_speed_daily_max_m_s": 8.4, "wind_speed_24h_mean_m_s": 1.9, "temperature_daily_min_c": 10.3, "temperature_daily_max_c": 16.9, "temperature_24h_mean_c": 12.9, "relative_humidity_daily_min_pct": 63.5, "relative_humidity_daily_max_pct": 94.8, "relative_humidity_24h_mean_pct": 82.8, "barometric_pressure_daily_min_hpa": 1012.5, "barometric_pressure_daily_max_hpa": 1015.1, "barometric_pressure_24h_mean_hpa": 1014.1, "rainfall_daily_total_mm": 2.8 }, { "date": "2026-06-08", "wind_speed_daily_max_m_s": 4.8, "wind_speed_24h_mean_m_s": 1.1, "temperature_daily_min_c": 9.3, "temperature_daily_max_c": 16.5, "temperature_24h_mean_c": 12.4, "relative_humidity_daily_min_pct": 55.5, "relative_humidity_daily_max_pct": 97.3, "relative_humidity_24h_mean_pct": 83.2, "barometric_pressure_daily_min_hpa": 1002.1, "barometric_pressure_daily_max_hpa": 1012.0, "barometric_pressure_24h_mean_hpa": 1006.2, "rainfall_daily_total_mm": 3.8 }, { "date": "2026-06-09", "wind_speed_daily_max_m_s": 6.9, "wind_speed_24h_mean_m_s": 1.4, "temperature_daily_min_c": 10.6, "temperature_daily_max_c": 15.5, "temperature_24h_mean_c": 12.2, "relative_humidity_daily_min_pct": 78.2, "relative_humidity_daily_max_pct": 98.8, "relative_humidity_24h_mean_pct": 93.4, "barometric_pressure_daily_min_hpa": 1002.4, "barometric_pressure_daily_max_hpa": 1016.0, "barometric_pressure_24h_mean_hpa": 1009.4, "rainfall_daily_total_mm": 30.0 }, { "date": "2026-06-10", "wind_speed_daily_max_m_s": 5.6, "wind_speed_24h_mean_m_s": 1.4, "temperature_daily_min_c": 9.1, "temperature_daily_max_c": 17.2, "temperature_24h_mean_c": 13.4, "relative_humidity_daily_min_pct": 54.2, "relative_humidity_daily_max_pct": 94.6, "relative_humidity_24h_mean_pct": 78.7, "barometric_pressure_daily_min_hpa": 1016.4, "barometric_pressure_daily_max_hpa": 1023.7, "barometric_pressure_24h_mean_hpa": 1021.2, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-11", "wind_speed_daily_max_m_s": 5.9, "wind_speed_24h_mean_m_s": 1.3, "temperature_daily_min_c": 10.1, "temperature_daily_max_c": 20.4, "temperature_24h_mean_c": 15.0, "relative_humidity_daily_min_pct": 51.0, "relative_humidity_daily_max_pct": 94.4, "relative_humidity_24h_mean_pct": 74.8, "barometric_pressure_daily_min_hpa": 1018.4, "barometric_pressure_daily_max_hpa": 1023.3, "barometric_pressure_24h_mean_hpa": 1020.4, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-12", "wind_speed_daily_max_m_s": 5.9, "wind_speed_24h_mean_m_s": 1.1, "temperature_daily_min_c": 10.0, "temperature_daily_max_c": 23.3, "temperature_24h_mean_c": 16.4, "relative_humidity_daily_min_pct": 46.2, "relative_humidity_daily_max_pct": 92.6, "relative_humidity_24h_mean_pct": 70.7, "barometric_pressure_daily_min_hpa": 1019.6, "barometric_pressure_daily_max_hpa": 1022.4, "barometric_pressure_24h_mean_hpa": 1020.8, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-13", "wind_speed_daily_max_m_s": 7.1, "wind_speed_24h_mean_m_s": 1.1, "temperature_daily_min_c": 12.6, "temperature_daily_max_c": 27.2, "temperature_24h_mean_c": 19.2, "relative_humidity_daily_min_pct": 34.8, "relative_humidity_daily_max_pct": 86.1, "relative_humidity_24h_mean_pct": 61.6, "barometric_pressure_daily_min_hpa": 1020.1, "barometric_pressure_daily_max_hpa": 1024.7, "barometric_pressure_24h_mean_hpa": 1022.3, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-14", "wind_speed_daily_max_m_s": 3.9, "wind_speed_24h_mean_m_s": 1.0, "temperature_daily_min_c": 14.4, "temperature_daily_max_c": 27.6, "temperature_24h_mean_c": 20.5, "relative_humidity_daily_min_pct": 34.9, "relative_humidity_daily_max_pct": 78.8, "relative_humidity_24h_mean_pct": 60.4, "barometric_pressure_daily_min_hpa": 1017.2, "barometric_pressure_daily_max_hpa": 1023.0, "barometric_pressure_24h_mean_hpa": 1020.1, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-15", "wind_speed_daily_max_m_s": 4.8, "wind_speed_24h_mean_m_s": 0.9, "temperature_daily_min_c": 16.2, "temperature_daily_max_c": 24.9, "temperature_24h_mean_c": 19.9, "relative_humidity_daily_min_pct": 46.1, "relative_humidity_daily_max_pct": 82.7, "relative_humidity_24h_mean_pct": 68.1, "barometric_pressure_daily_min_hpa": 1013.5, "barometric_pressure_daily_max_hpa": 1018.2, "barometric_pressure_24h_mean_hpa": 1016.4, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-16", "wind_speed_daily_max_m_s": 11.7, "wind_speed_24h_mean_m_s": 3.1, "temperature_daily_min_c": 15.1, "temperature_daily_max_c": 25.3, "temperature_24h_mean_c": 19.7, "relative_humidity_daily_min_pct": 36.5, "relative_humidity_daily_max_pct": 87.2, "relative_humidity_24h_mean_pct": 59.2, "barometric_pressure_daily_min_hpa": 1013.1, "barometric_pressure_daily_max_hpa": 1015.4, "barometric_pressure_24h_mean_hpa": 1013.9, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-17", "wind_speed_daily_max_m_s": 6.3, "wind_speed_24h_mean_m_s": 1.8, "temperature_daily_min_c": 12.5, "temperature_daily_max_c": 23.5, "temperature_24h_mean_c": 17.3, "relative_humidity_daily_min_pct": 50.8, "relative_humidity_daily_max_pct": 81.9, "relative_humidity_24h_mean_pct": 65.9, "barometric_pressure_daily_min_hpa": 1015.7, "barometric_pressure_daily_max_hpa": 1018.6, "barometric_pressure_24h_mean_hpa": 1017.4, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-18", "wind_speed_daily_max_m_s": 5.7, "wind_speed_24h_mean_m_s": 0.9, "temperature_daily_min_c": 11.9, "temperature_daily_max_c": 26.1, "temperature_24h_mean_c": 18.1, "relative_humidity_daily_min_pct": 44.9, "relative_humidity_daily_max_pct": 92.6, "relative_humidity_24h_mean_pct": 69.0, "barometric_pressure_daily_min_hpa": 1012.5, "barometric_pressure_daily_max_hpa": 1019.2, "barometric_pressure_24h_mean_hpa": 1016.0, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-19", "wind_speed_daily_max_m_s": 4.9, "wind_speed_24h_mean_m_s": 1.2, "temperature_daily_min_c": 13.7, "temperature_daily_max_c": 24.7, "temperature_24h_mean_c": 18.8, "relative_humidity_daily_min_pct": 49.4, "relative_humidity_daily_max_pct": 84.6, "relative_humidity_24h_mean_pct": 66.5, "barometric_pressure_daily_min_hpa": 1007.8, "barometric_pressure_daily_max_hpa": 1012.7, "barometric_pressure_24h_mean_hpa": 1010.3, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-20", "wind_speed_daily_max_m_s": 8.2, "wind_speed_24h_mean_m_s": 1.6, "temperature_daily_min_c": 11.8, "temperature_daily_max_c": 22.3, "temperature_24h_mean_c": 17.0, "relative_humidity_daily_min_pct": 49.1, "relative_humidity_daily_max_pct": 82.7, "relative_humidity_24h_mean_pct": 65.6, "barometric_pressure_daily_min_hpa": 1009.2, "barometric_pressure_daily_max_hpa": 1016.7, "barometric_pressure_24h_mean_hpa": 1013.3, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-21", "wind_speed_daily_max_m_s": 5.8, "wind_speed_24h_mean_m_s": 0.9, "temperature_daily_min_c": 12.1, "temperature_daily_max_c": 23.6, "temperature_24h_mean_c": 17.6, "relative_humidity_daily_min_pct": 52.9, "relative_humidity_daily_max_pct": 89.2, "relative_humidity_24h_mean_pct": 71.1, "barometric_pressure_daily_min_hpa": 1014.8, "barometric_pressure_daily_max_hpa": 1018.3, "barometric_pressure_24h_mean_hpa": 1016.7, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-22", "wind_speed_daily_max_m_s": 7.3, "wind_speed_24h_mean_m_s": 1.3, "temperature_daily_min_c": 14.0, "temperature_daily_max_c": 29.7, "temperature_24h_mean_c": 21.4, "relative_humidity_daily_min_pct": 21.8, "relative_humidity_daily_max_pct": 77.2, "relative_humidity_24h_mean_pct": 51.0, "barometric_pressure_daily_min_hpa": 1015.5, "barometric_pressure_daily_max_hpa": 1019.3, "barometric_pressure_24h_mean_hpa": 1017.2, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-23", "wind_speed_daily_max_m_s": 5.3, "wind_speed_24h_mean_m_s": 1.0, "temperature_daily_min_c": 15.8, "temperature_daily_max_c": 29.8, "temperature_24h_mean_c": 21.9, "relative_humidity_daily_min_pct": 28.3, "relative_humidity_daily_max_pct": 71.2, "relative_humidity_24h_mean_pct": 52.7, "barometric_pressure_daily_min_hpa": 1014.4, "barometric_pressure_daily_max_hpa": 1018.5, "barometric_pressure_24h_mean_hpa": 1016.3, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-24", "wind_speed_daily_max_m_s": 5.9, "wind_speed_24h_mean_m_s": 0.8, "temperature_daily_min_c": 15.7, "temperature_daily_max_c": 27.6, "temperature_24h_mean_c": 21.0, "relative_humidity_daily_min_pct": 35.9, "relative_humidity_daily_max_pct": 76.8, "relative_humidity_24h_mean_pct": 59.3, "barometric_pressure_daily_min_hpa": 1009.8, "barometric_pressure_daily_max_hpa": 1015.8, "barometric_pressure_24h_mean_hpa": 1012.8, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-25", "wind_speed_daily_max_m_s": 8.3, "wind_speed_24h_mean_m_s": 1.4, "temperature_daily_min_c": 15.0, "temperature_daily_max_c": 21.2, "temperature_24h_mean_c": 17.9, "relative_humidity_daily_min_pct": 57.2, "relative_humidity_daily_max_pct": 85.8, "relative_humidity_24h_mean_pct": 70.0, "barometric_pressure_daily_min_hpa": 1006.2, "barometric_pressure_daily_max_hpa": 1010.5, "barometric_pressure_24h_mean_hpa": 1008.7, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-26", "wind_speed_daily_max_m_s": 4.1, "wind_speed_24h_mean_m_s": 0.9, "temperature_daily_min_c": 13.0, "temperature_daily_max_c": 16.3, "temperature_24h_mean_c": 14.4, "relative_humidity_daily_min_pct": 81.8, "relative_humidity_daily_max_pct": 98.6, "relative_humidity_24h_mean_pct": 94.3, "barometric_pressure_daily_min_hpa": 1005.2, "barometric_pressure_daily_max_hpa": 1008.1, "barometric_pressure_24h_mean_hpa": 1006.2, "rainfall_daily_total_mm": 12.4 }, { "date": "2026-06-27", "wind_speed_daily_max_m_s": 7.5, "wind_speed_24h_mean_m_s": 1.5, "temperature_daily_min_c": 11.3, "temperature_daily_max_c": 21.2, "temperature_24h_mean_c": 15.6, "relative_humidity_daily_min_pct": 53.4, "relative_humidity_daily_max_pct": 97.0, "relative_humidity_24h_mean_pct": 78.1, "barometric_pressure_daily_min_hpa": 1008.3, "barometric_pressure_daily_max_hpa": 1015.1, "barometric_pressure_24h_mean_hpa": 1012.1, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-28", "wind_speed_daily_max_m_s": 5.3, "wind_speed_24h_mean_m_s": 1.1, "temperature_daily_min_c": 11.6, "temperature_daily_max_c": 21.1, "temperature_24h_mean_c": 16.2, "relative_humidity_daily_min_pct": 59.4, "relative_humidity_daily_max_pct": 93.8, "relative_humidity_24h_mean_pct": 77.7, "barometric_pressure_daily_min_hpa": 1015.4, "barometric_pressure_daily_max_hpa": 1017.2, "barometric_pressure_24h_mean_hpa": 1016.3, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-29", "wind_speed_daily_max_m_s": 3.9, "wind_speed_24h_mean_m_s": 1.0, "temperature_daily_min_c": 13.6, "temperature_daily_max_c": 18.7, "temperature_24h_mean_c": 16.2, "relative_humidity_daily_min_pct": 70.3, "relative_humidity_daily_max_pct": 91.8, "relative_humidity_24h_mean_pct": 81.9, "barometric_pressure_daily_min_hpa": 1014.8, "barometric_pressure_daily_max_hpa": 1016.3, "barometric_pressure_24h_mean_hpa": 1015.5, "rainfall_daily_total_mm": 0.0 }, { "date": "2026-06-30", "wind_speed_daily_max_m_s": 8.6, "wind_speed_24h_mean_m_s": 2.2, "temperature_daily_min_c": 12.2, "temperature_daily_max_c": 19.5, "temperature_24h_mean_c": 16.0, "relative_humidity_daily_min_pct": 52.3, "relative_humidity_daily_max_pct": 88.5, "relative_humidity_24h_mean_pct": 73.3, "barometric_pressure_daily_min_hpa": 1015.3, "barometric_pressure_daily_max_hpa": 1016.2, "barometric_pressure_24h_mean_hpa": 1015.6, "rainfall_daily_total_mm": 0.0 } ], "dailyMeteorologyMetadata": { "sourceTable": "B.2", "rounding": "One decimal place as printed.", "dateTimeConvention": "Dates and clock times are as printed. Time zone, UTC offset, daylight-saving handling, and hour-beginning versus hour-ending convention are not established in the checked report; do not align to UTC data until confirmed.", "validation": "This is the report's published daily meteorology table. The Level 0 statement appears in its air-quality QA introduction; a separate meteorological validation level or hourly QC flags were not established.", "windSpeedMaximum": "Table labels Max. Section 4.3 identifies the June 4 monthly peak of 12.4 m/s as the highest hourly average. These values must not be labelled gusts.", "dailyMeans": "Section 4.3 identifies daily wind speed and temperature means as 24-hour averages. Other means/maxima/minima and rainfall are the daily statistics printed in Table B.2.", "windDirection": "Measured by the station but absent from the daily numeric table. Figures A.12 and A.13 are aggregate wind roses, not a timestamped numeric direction series.", "limits": [ "Do not reconstruct hourly wind from daily means or maxima.", "Do not assign a direction to these daily values from the dominant monthly direction.", "Surface daily temperature does not determine a temperature inversion or mixing height.", "Daily meteorology and daily maximum NO2 are not necessarily simultaneous." ], "fields": { "wind_speed_daily_max_m_s": { "unit": "m/s" }, "wind_speed_24h_mean_m_s": { "unit": "m/s" }, "temperature_daily_min_c": { "unit": "°C" }, "temperature_daily_max_c": { "unit": "°C" }, "temperature_24h_mean_c": { "unit": "°C" }, "relative_humidity_daily_min_pct": { "unit": "%" }, "relative_humidity_daily_max_pct": { "unit": "%" }, "relative_humidity_24h_mean_pct": { "unit": "%" }, "barometric_pressure_daily_min_hpa": { "unit": "hPa" }, "barometric_pressure_daily_max_hpa": { "unit": "hPa" }, "barometric_pressure_24h_mean_hpa": { "unit": "hPa" }, "rainfall_daily_total_mm": { "unit": "mm" } } }, "reportedHourlyExtrema": [ { "reportedDateTime": "2026-06-04 12:00", "variable": "wind_speed", "value": 12.4, "unit": "m/s", "averagingPeriod": "1-hour average", "selection": "Reported maximum hourly average for the month" }, { "reportedDateTime": "2026-06-06 04:00", "variable": "air_temperature", "value": 8.8, "unit": "°C", "averagingPeriod": "Hourly as stated in §4.3", "selection": "Reported minimum hourly temperature for the month" }, { "reportedDateTime": "2026-06-06 06:00", "variable": "air_temperature", "value": 8.8, "unit": "°C", "averagingPeriod": "Hourly as stated in §4.3", "selection": "Reported minimum hourly temperature for the month" }, { "reportedDateTime": "2026-06-23 16:00", "variable": "air_temperature", "value": 29.8, "unit": "°C", "averagingPeriod": "Hourly as stated in §4.3", "selection": "Reported maximum hourly temperature for the month" } ], "passive": [ { "species": "SO2", "value": 0.2, "qualifier": "<", "unit": "ppb", "startDate": "2026-06-01", "endDate": "2026-06-30", "reportedStartTime": "13:00", "reportedEndTime": "13:00", "averagingPeriod": "Entire passive sampler exposure interval", "method": "AGAT passive sampling with laboratory analysis; field blank subtracted", "reportedDetectionLimitPpb": 0.2, "laboratorySampleId": "7894854", "caveat": "Below the reported detection limit is not zero; not an hourly or daily concentration." }, { "species": "VOC_as_hexane", "value": 0.7, "qualifier": "<", "unit": "ppb", "startDate": "2026-06-01", "endDate": "2026-06-30", "reportedStartTime": "13:00", "reportedEndTime": "13:00", "averagingPeriod": "Entire passive sampler exposure interval", "method": "AGAT passive sampling with laboratory analysis; field blank subtracted", "reportedDetectionLimitPpb": 0.7, "laboratorySampleId": "7894857", "caveat": "Below the reported detection limit is not zero. Hexane-equivalent VOC is not individual-compound speciation or a total-VOC health objective." } ] } ] }