( Note: These data have been fully ratified by AEA Technology, NETCEN. )
Ozone air pollution was HIGH for 0 hours on 0 days, reaching a maximum hourly mean of 40 ppb on November 22.
NO2 air pollution was HIGH for 0 hours on 0 days, reaching a maximum hourly mean of 75 ppb on November 27.
PM10 air pollution was HIGH for 1 hours on 1 days, reaching a maximum 24-hour mean of 80 µg/m³ on November 30.
-------------------------------------------------------------------------------------------------------------------- | | | | | | | | | | | | | | | POLLUTANT | O3 | NO2 | CO | SO2 | PM10 | | | | | | | | | | | | | | | | | This | This | This | This | This | | | | | | | | | | Period | Period | Period | Period | Period | | | | | | | | | | | | | | | | N(V. HIGH) | 0 | 0 | - | - | 0 | | | | | | | | | N(HIGH) | 0 | 0 | - | - | 1 | | | | | | | | | N(MODERATE) | 0 | 0 | - | - | 12 | | | | | | | | | N(LOW) | 720 | 711 | - | - | 707 | | | | | | | | | | | | | | | | | | | | | | | N(HOUR) > AQS | N/A | 0 | - | - | N/A | | | | | | | | | N(8HOUR) > AQS | 0 | N/A | - | - | N/A | | | | | | | | | N(DAILY) > AQS | N/A | N/A | - | - | 2 | | | | | | | | | Ann Mean > AQS | N/A | 0 | - | - | 0 | | | | | | | | | | | | | | | | | | | | | | | MAX 15-min | 40 ppb | 125 ppb | - ppm | - ppb | 900 µg/m³ | | | | | | | | | 99.9%ile 15-min | 40 ppb | 102 ppb | - ppm | - ppb | 765 µg/m³ | | | | | | | | | MAX hour | 40 ppb | 75 ppb | - ppm | - ppb | 469 µg/m³ | | | | | | | | | MAX 8-hour | 39 ppb | 42 ppb | - ppm | - ppb | 165 µg/m³ | | | | | | | | | MAX 24-hour | 34 ppb | 28 ppb | - ppm | - ppb | 80 µg/m³ | | | | | | | | | 99% dly max 24hr | 34 ppb | 28 ppb | - ppm | - ppb | 80 µg/m³ | | | | | | | | | MAX day | 34 ppb | 28 ppb | - ppm | - ppb | 65 µg/m³ | | | | | | | | | 90%ile day | 27 ppb | 22 ppb | - ppm | - ppb | 20 µg/m³ | | | | | | | | | AVERAGE | 17 ppb | 14 ppb | - ppm | - ppb | 16 µg/m³ | | | | | | | | | DATA CAPTURE | 100 % | 99 % | - % | - % | 99 % | | | | | | | | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Note : Exceedences of PM10 Air Quality Standards (AQS) are based on gravimetric equivalent data.
All other PM10 statistics are based on TEOM data and may therefore under-read gravimetric results by 30%.
