Air Quality Strategy Objectives Generated for the 12 month period commencing » 1-jan-2012
| Pollutant | Objective | Result | Achieved Objective |
|---|---|---|---|
| Site selected » City of London - Upper Thames Street | |||
| PM10 Particulate | 40 ug/m3 as an annual mean | 34 | YES |
| PM10 Particulate | 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year | 43 | NO |
| Site selected » Kensington and Chelsea - Knightsbridge | |||
| Nitrogen Dioxide | 200 ug/m3 as a 1 hour mean, not to be exceeded more than 18 times a year | 500 | NO |
| Nitrogen Dioxide | 40 ug/m3 as an annual mean | 92 | NO |
| Site selected » Westminster - Marylebone Road | |||
| Carbon Monoxide | 10 mg/m3 as a maximum daily running 8 hour mean | 0 | YES |
| Nitrogen Dioxide | 200 ug/m3 as a 1 hour mean, not to be exceeded more than 18 times a year | 122 | NO |
| Nitrogen Dioxide | 40 ug/m3 as an annual mean | 94 | NO |
| Ozone | 100 ug/m3 as an 8 hour mean, not to be exceeded more than 10 times a year | 0 | YES |
| PM10 (redundant method) | 40 ug/m3 as an annual mean | 42 | NO |
| PM10 (redundant method) | 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year | 89 | NO |
| PM10 Particulate | 40 ug/m3 as an annual mean | 38 | YES |
| PM10 Particulate | 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year | 48 | NO |
| Sulphur Dioxide | 125 ug/m3 as a 24 hour mean, not to be exceeded more than 3 times a year | 0 | YES |
| Sulphur Dioxide | 266 ug/m3 as a 15 minute mean, not to be exceeded more than 35 times a year | 0 | YES |
| Sulphur Dioxide | 350 ug/m3 as a 1 hour mean, not to be exceeded more than 24 times a year | 0 | YES |
| Site selected » Westminster - Marylebone Road FDMS | |||
| PM10 Particulate | 40 ug/m3 as an annual mean | 31 | YES |
| PM10 Particulate | 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year | 23 | YES |
| Warning: Westminster - Marylebone Road FDMS - PM10 Particulate achieved a capture rate less than 90% for the year (85%). Results may not be representative of the full year and should be used for guidance only. | |||
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Note 1: All results from TEOM PM10 analysers from 2004 onward are now converted to reference equiavlence using the volatile correction method. Results using the old 'TEOM*1.3' method are also shown in grey for comparison where relevant.
More information.
Note 2: Ratification information is shown below. Results based on provisional data must be considered with care. Why? |
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| Warning: City of London - Upper Thames Street - All data fully ratified | |||
| Warning: Kensington and Chelsea - Knightsbridge - All data fully ratified | |||
| Warning: Westminster - Marylebone Road - All data fully ratified | |||
| Click here to start again. | |||
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