GRAPHS
	DATA	CO	NO2	O3	PM10	SO2
Birmingham
Cardiff
Edinburgh
Leeds
London
Manchester
Newcastle
Norwich
Plymouth
Summary

Click any of the icons to access the data.    Graphs in PDF format     Data in CSV format (for Excel) .

CO = carbon monoxide; NO₂ = nitrogen dioxide; O₃ = ozone; PM10 = particulates; SO₂ = sulphur dioxide