LAQN Monitoring Statistics




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Achieved Achieved but raised Exceeded No Data Closed
Achieved Achieved but raised Execeeded No Data Closed
Your selected monitoring site » Westminster - Marylebone Road FDMS
The table below shows whether pollution levels recorded at the site you have selected remained within the Government's Air Quality Strategy Objectives in 2011. 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 50 ug/m3 as a 24 hour mean, not to be exceeded more than 35 times a year NO 57
The currently selected objective » PM10: 50 ug/m3 not be exceeded more than 35 times a year - measured as 24 hour mean
* Note that all objectives have been calculated using a method defined in 2013.
* Note that results are excluded where analysers have not returned valid data for at least 90% of the year, unless a short-term objective was exceeded.
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