( Note: These data are provisional ; fully ratified results will be available later. )
Ozone air pollution was HIGH for 6 hours on 2 days, reaching a maximum hourly mean of 96 ppb on June 25.
NO2 air pollution was HIGH for 0 hours on 0 days, reaching a maximum hourly mean of 38 ppb on June 13.
PM10 air pollution was HIGH for 0 hours on 0 days, reaching a maximum 24-hour mean of 34 µg/m³ on June 27.
-------------------------------------------------------------------------------------------------------------------- | | | | | | | | | | | | | | | POLLUTANT | O3 | NO2 | CO | SO2 | PM10 | | | | | | | | | | | | | | | | | This | This | This | This | This | | | | | | | | | | Period | Period | Period | Period | Period | | | | | | | | | | | | | | | | N(V. HIGH) | 0 | 0 | - | - | 0 | | | | | | | | | N(HIGH) | 6 | 0 | - | - | 0 | | | | | | | | | N(MODERATE) | 45 | 0 | - | - | 0 | | | | | | | | | N(LOW) | 369 | 426 | - | - | 413 | | | | | | | | | | | | | | | | | | | | | | | N(HOUR) > AQS | N/A | 0 | - | - | N/A | | | | | | | | | N(8HOUR) > AQS | 32 | N/A | - | - | N/A | | | | | | | | | N(DAILY) > AQS | N/A | N/A | - | - | 0 | | | | | | | | | Ann Mean > AQS | N/A | 0 | - | - | 0 | | | | | | | | | | | | | | | | | | | | | | | MAX 15-min | 97 ppb | 39 ppb | - ppm | - ppb | 58 µg/m³ | | | | | | | | | 99.9%ile 15-min | 97 ppb | 38 ppb | - ppm | - ppb | 54 µg/m³ | | | | | | | | | MAX hour | 96 ppb | 38 ppb | - ppm | - ppb | 54 µg/m³ | | | | | | | | | MAX 8-hour | 87 ppb | 29 ppb | - ppm | - ppb | 40 µg/m³ | | | | | | | | | MAX 24-hour | 62 ppb | 20 ppb | - ppm | - ppb | 34 µg/m³ | | | | | | | | | 99% dly max 24hr | 62 ppb | 20 ppb | - ppm | - ppb | 34 µg/m³ | | | | | | | | | MAX day | 50 ppb | 17 ppb | - ppm | - ppb | 33 µg/m³ | | | | | | | | | 90%ile day | 38 ppb | 15 ppb | - ppm | - ppb | 24 µg/m³ | | | | | | | | | AVERAGE | 29 ppb | 9 ppb | - ppm | - ppb | 19 µg/m³ | | | | | | | | | DATA CAPTURE | 59 % | 59 % | - % | - % | 59 % | | | | | | | | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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%.
