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Index Banded Annual Totals for Swansea:
LOW
254 days
MODERATE
65 days
HIGH
4 days
VERY HIGH
1 day

Graphs

To see a specific graph please specify the parameters to the right. The default view within the index banded graphs is a colour background which matches the index system of Low (Index 1,2 or 3), Moderate (Index 4,5,or 6), High (Index 7, 8 or 9) or Very High (Index 10). Only the pollutants that have been assisgned an index band can be plotted within this section. Therefore some pollutants measured at certain stations may appear to be "missing". To view these pollutants please click the link below for the Base Data Graphs where all pollutants are available for graphing.

Alternatively, see the Current Readings page for today's measurements - again. you are presented with the option to view the banded data or base numeric data.

For more information about air quality in the rest of the UK please see the Air Index Archive

To see the Base Data Graphs click here.

Please note all data is displayed as Greenwich Mean Time (GMT)

The data supplied are non-validated and for information only.

Generate a Graph:

Select a monitoring station

You are able to view one substance for a maximum of six sites.

Select up to six montioring stations and then choose one substance below.

 
Cwm Level Park Ozone and NOx
 
Hafod OPSIS DOAS
 
Morriston Groundhog
 
St Thomas DOAS
 
Swansea AURN
 

Colour coding: Each station is represented by a colour (see the squares next to each station name). To see which station monitors which substance see the coloured squares under each pollutant.

Air Quality data
 NO2  
Morfa Groundhoggraphic used for layoutMorriston Groundhoggraphic used for layoutSwansea AURNgraphic used for layoutHafod OPSIS DOASgraphic used for layoutSt Thomas DOASgraphic used for layoutCwm Level Park Ozone and NOxgraphic used for layout
 SO2  
St Thomas DOASgraphic used for layout
 O3  
Morriston Groundhoggraphic used for layoutHafod OPSIS DOASgraphic used for layoutSt Thomas DOASgraphic used for layoutCwm Level Park Ozone and NOxgraphic used for layout
 PM10  
Morfa Groundhoggraphic used for layoutSwansea AURNgraphic used for layout
 PM2.5  
Morriston Groundhoggraphic used for layoutSwansea AURNgraphic used for layout
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Please be aware that graphs can take a few moments to display, please be patient while we retrieve your required data