( Note: These data are provisional ; fully ratified results will be available later. )
Ozone air pollution was HIGH for 1 hours on 1 days, reaching a maximum hourly mean of 93 ppb on June 25.
NO2 air pollution was HIGH for 0 hours on 0 days, reaching a maximum hourly mean of 238 ppb on June 30.
PM10 air pollution was HIGH for 0 hours on 0 days, reaching a maximum 24-hour mean of 60 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) | 1 | 0 | - | - | 0 | | | | | | | | | N(MODERATE) | 50 | 6 | - | - | 64 | | | | | | | | | N(LOW) | 669 | 706 | - | - | 656 | | | | | | | | | | | | | | | | | | | | | | | N(HOUR) > AQS | N/A | 7 | - | - | N/A | | | | | | | | | N(8HOUR) > AQS | 29 | N/A | - | - | N/A | | | | | | | | | N(DAILY) > AQS | N/A | N/A | - | - | 4 | | | | | | | | | Ann Mean > AQS | N/A | 0 | - | - | 0 | | | | | | | | | | | | | | | | | | | | | | | MAX 15-min | 96 ppb | 282 ppb | - ppm | - ppb | 339 µg/m³ | | | | | | | | | 99.9%ile 15-min | 91 ppb | 266 ppb | - ppm | - ppb | 206 µg/m³ | | | | | | | | | MAX hour | 93 ppb | 238 ppb | - ppm | - ppb | 179 µg/m³ | | | | | | | | | MAX 8-hour | 83 ppb | 175 ppb | - ppm | - ppb | 112 µg/m³ | | | | | | | | | MAX 24-hour | 60 ppb | 67 ppb | - ppm | - ppb | 60 µg/m³ | | | | | | | | | 99% dly max 24hr | 60 ppb | 67 ppb | - ppm | - ppb | 60 µg/m³ | | | | | | | | | MAX day | 54 ppb | 67 ppb | - ppm | - ppb | 59 µg/m³ | | | | | | | | | 90%ile day | 33 ppb | 18 ppb | - ppm | - ppb | 45 µg/m³ | | | | | | | | | AVERAGE | 27 ppb | 12 ppb | - ppm | - ppb | 24 µg/m³ | | | | | | | | | DATA CAPTURE | 100 % | 99 % | - % | - % | 100 % | | | | | | | | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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%.
