LAQN Monitoring Statistics
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2013 Air Quality Strategy Objective Statistics: All Objectives



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What are the AQS Objectives
Your selected monitoring site » Wandsworth - Putney High Street
The table below shows whether pollution levels recorded at the site you have selected remained within the Government's Air Quality Strategy Objectives in 2013 (to date). For further basic statistics click on the button below, or for more precise statistics, use the Statistics Calculator.
Pollutant Objective Was it achieved? Value
PM10 Particulate 40 ug/m3 as an annual mean YES 34
PM10 Particulate 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year YES 8
PM10 (redundant method) 40 ug/m3 as an annual mean YES 35
PM10 (redundant method) 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year YES 9
Nitrogen Dioxide 200 ug/m3 as a 1 hour mean, not to be exceeded more than 18 times a year NO 594
Nitrogen Dioxide 40 ug/m3 as an annual mean NO 120
* Note that these results cover from the start of the year to now, and are still subject to change until the end of the year.
* Note - 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 for comparison where relevant. More information.
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