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Diffusion Tube Sites in Chester

The tables below show air quality monitoring data for diffusion tube sites in Chester, Christleton and Littleton. Readings are in micrograms per cubic metre. The annual objective for nitrogen dioxide (NO2) is 40 micrograms per cubic metre. Results are as recorded at the monitoring site and do not necessarily represent pollution levels at nearby residences.

Chester


 Site  Type  Pollutant 2016  2017  2018  2019 
 Bedward Row  Roadside  NO2  40.2  37.5   33.8  32.1
 Boughton (a) EB  Roadside  NO2  34.8  34.5  31.6  30.7
 Boughton (b) OB  Roadside  NO2  41.2  39.8  44.8  36.1
 Boughton (c) BJ  Roadside  NO2  39.0  38.7   39.5  33.9
 Boughton Heath XR  Roadside  NO2  n/a  n/a   31.1   29.7 
 Boughton RTA  Roadside  NO2  30.5  29.2  28.7  23.1
 Bus Interchange  Roadside  NO2  n/a  44.6   38.9  36.4
 Caldy Valley Road CVR  Roadside  NO2  n/a  30.3   30.2  27.8 
 Canal Street  Roadside  NO2  n/a  25.1   32.6   31.2 
 CBI Ramp  Roadside  NO2  n/a  n/a   n/a   n/a 
 Christleton Road (a) C11  Roadside  NO2  43.3  43.0  41.1  41.0
 Christleton Road (b) C36  Roadside  NO2  51.5  50.8   47.6  43.9
 Christleton Road (c) C75  Roadside  NO2  30.4  26.9  27.2  26.4
 City Road (a)  Roadside  NO2  29.1  29.5   n/a   n/a
 City Road (b)  Roadside  NO2  30.9  28.0   n/a  n/a  
 Foregate Street  Roadside  NO2  31.7  27.2  28.9  27.6
 Frodsham Street  Roadside  NO2  n/a  21.7   25.3   n/a 
 George Street GE  Roadside  NO2  24.9  26.9   32.0  30.7
 George Street (b) GT  Roadside  NO2  n/a  26.1  34.1  30.5
 Gorse Stacks GSW  Roadside  NO2  27.8  33.3  34.3  33.9
 Hoole Lane  Roadside  NO2  33.7  32.9  32.0  30.9
 Hoole Road  Roadside  NO2  n/a  n/a    31.7  28.6 
 Hoole Way  Roadside  NO2  39.9  36.0  35.8  32.0
 Ingham Close  Roadside  NO2  38.5  36.7  34.5  34.5
 Lincoln House  Roadside  NO2  38.4  39.2  36.9   29.7
 Liverpool Road (b)  Roadside  NO2  39.4  39.7  38.6  38.8
 Love Street (a) LVR  Roadside  NO2  40.8  35.9  36.5  36.2
 Love Street (b) LVS  Roadside  NO2  39.1  36.0  31.4  28.3
 Lumley Place  Roadside  NO2  n/a  27.9   27.0  24.1 
 Moston Road  Roadside  NO2  n/a  n/a   28.1   24.2 
 New Crane Street  Roadside  NO2  n/a  n/a   30.5   27.8 
 Nicholas Street (a) N  Roadside  NO2  39.1  39.8   34.7   33.9 
 Nicholas Street (b) S  Roadside  NO2  22.6  28.6  31.7  29.0
 Oulton Place  Roadside  NO2  n/a  28.3  32.1  30.8
 Parkgate Road (a) PG  Roadside  NO2  46.9  46.0  45.2  40.8
 Parkgate Road (b) PA  Roadside  NO2  42.3  42.7  41.2  40.3
 Parkgate Road (c) RM  Roadside  NO2  43.1  41.3  45.7  38.8
 Parkgate Road (d) GD  Roadside  NO2  33.9  n/a  n/a  n/a
 Samaritans, Liverpool Rd.  Roadside  NO2  39.8  36.9  37.7  34.4
 South View Road SV2  Roadside  NO2  n/a   n/a  25.4  22.7
 South View Road SV3  Roadside  NO2  n/a  24.8  26.0  n/a
 Specialized  Roadside  NO2  36.3  36.4  36.1  32.1
 St Anne's Place  Roadside  NO2  n/a  44.6  42.4  40.2
 St Giles  Roadside  NO2  34.8  33.4  n/a  n/a
 St Martins Hunter  Roadside  NO2  n/a  n/a  n/a  26.0
 St Martins Way  Roadside  NO2  32.1  27.7  25.2  n/a
 St Oswalds Way OW  Roadside  NO2  51.0  51.8  43.6  43.3
 St Oswalds Way (b) OF  Roadside  NO2  38.8  35.3  34.3  30.6
 St Oswalds Way N  Roadside  NO2  n/a  n/a  n/a  24.7
 Stanley Arms   Roadside  NO2  n/a  n/a  n/a  30.2
 Station Road SF  Roadside  NO2  n/a  32.3  33.3  32.0
 Tarvin Road (a) T6  Roadside  NO2  50.3  45.5  43.6  43.6
 Tarvin Road (c) T44  Roadside  NO2  42.8  40.2  39.2  37.6
 Tarvin Road (f) T11  Roadside  NO2  n/a  32.0  31.8  28.6
 The Bars  Roadside  NO2  38.7  36.0  36.7  33.3
 The Bars (b)  Roadside  NO2  n/a  27.3  n/a  n/a
 Upper Northgate Street  Roadside  NO2  40.1  36.8  38.1  33.5
 Upton High School  Roadside  NO2  n/a  n/a  26.4  27.2
 Watergate Street (a)  Roadside  NO2  43.5  42.8  39.8  35.2
 Watergate Street (b)  Roadside  NO2  37.1  33.3  33.7  29.6
 Wrexham Road  Roadside  NO2  20.1  17.4  n/a  n/a
 Whitchurch Road (c) WCR  Roadside  NO2  n/a  41.1  39.0  41.1

Christleton

 Site  Type Pollutant  2016  2017  2018  2019 
 Canal Place CP3             Roadside  NO2  n/a   31.9  31.3   30.9
 Christleton Mill CM  Roadside  NO2  n/a  30.8  33.9  32.6
 Plough Lane CPL  Roadside  NO2  n/a  n/a   19.0  18.2
 Village Road VRC  Roadside  NO2  n/a  n/a  18.2  n/a 
 Whitchurch Road MCC  Roadside  NO2  44.5  40.8  38.0  36.9
 Whitchurch Road (b) W23   Roadside  NO2  n/a  29.2  33.1  30.6

Littleton

 Site Type  Pollutant  2016  2017  2018  2019 
 Tarvin Rd. (South) TA          Roadside  NO2  n/a  47.7  44.5  338.6
 Tarvin Road TBV   Roadside  NO2  n/a  n/a  n/a  44.4

Tarvin

 Site Type  Pollutant  2016  2017  2018  2019 
 Holme Street HHB              Roadside NO2  n/a n/a  n/a  32.1 
 Holme Street HTC  Roadside NO2  n/a n/a  n/a  33.2 

Duddon

 Site Type  Pollutant  2016  2017  2018  2019 
 Duddon St Peters              Roadside NO2  n/a n/a  25.3  21.8 

Diffusion tube sites can be viewed on the diffusion tube map below.

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