The table below shows whether pollution levels recorded at the site you have selected remained within the Government's Air Quality Strategy Objectives in 2021.
For further basic statistics click on the button below, or for more precise statistics, use the Statistics Calculator.
Was it achieved?
200 ug/m3 as a 1 hour mean, not to be exceeded more than 18 times a year
40 ug/m3 as an annual mean
* 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.