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Index Banded Annual Totals for Swansea:
LOW
days
MODERATE
days
HIGH
days
VERY HIGH
days
annual air quality totals for all Swansea monitoring stations

Annual Air Pollution for 2025

 

Running Annual Air
Pollution Totals for:
Swansea
LOW
days
MODERATE
days
HIGH
days
VERY HIGH
days

Historical data:
Please select a year 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001

 

Running Annual Air
Pollution Totals for:
Cwm Level Park Ozone and NOx

 

Running Annual Air
Pollution Totals for:
Hafod OPSIS DOAS

 

Running Annual Air
Pollution Totals for:
Morriston Groundhog
photograph of monitoring station: Cwm Level Park Ozone and NOx - illustrative purposes only
photograph of monitoring station: Hafod OPSIS DOAS - illustrative purposes only
photograph of monitoring station: Morriston Groundhog - illustrative purposes only
LOW
338 days
MODERATE
11 days
HIGH
1 day
VERY HIGH
1 day
LOW
151 days
MODERATE
0 days
HIGH
0 days
VERY HIGH
0 days
LOW
28 days
MODERATE
0 days
HIGH
0 days
VERY HIGH
0 days

 

Running Annual Air
Pollution Totals for:
St Thomas DOAS

 

Running Annual Air
Pollution Totals for:
Swansea AURN
photograph of monitoring station: St Thomas DOAS - illustrative purposes only
photograph of monitoring station: Swansea AURN - illustrative purposes only
LOW
206 days
MODERATE
2 days
HIGH
0 days
VERY HIGH
0 days
LOW
1 day
MODERATE
0 days
HIGH
0 days
VERY HIGH
0 days
Related links:
Select a monitoring station: