Air quality monitoring

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2. List of air monitoring sites

Details for each monitoring site can be found on pages 20 to 27 of our 2026 Air Quality Annual Status Report (ASR).

Some of our monitoring data can also be seen in real time.

 2025 Air monitoring stations and average annual concentrations

Site Name

2025 NO2 Annual Average Concentration (μg/m3)

Alphington Cross

23.5

Alphington Road inbound

23.3

Alphington Road outbound

19.8

Alphington Road outer

18.9

Alphington Street

31.0

Archibald Road

14.1

Beacon Heath

14.3

Blackboy Road (Polsloe Road)

22.4

Bonhay Road (St Clements Lane)

23.8

Bonhay Road Bridge

26.3

Bridge Road (Countess Wear)

14.9

Carder's Court, Shilhay

15.9

Chudleigh Road

12.4

Church Road Alphington

19.9

Church Road II

19.7

Cowick Barton Playing Fields

9.4

Cowick Street (Cowick Lane)

28.2

Cowick Street (Exe Bridges)

25.3

Cowick Street (inbound)

19.5

Cowick Street (outbound)

28.8

Cowley Bridge Road

24.6

East John Walk

11.7

East Wonford Hill

34.2

Exeter Road

14.5

Exwick Playing Fields

15.2

Fore Street Heavitree inbound

27.7

Fore Street Heavitree outbound

20.8

Heavitree Pleasure Ground

8.3

Heavitree Road inbound

15.6

Heavitree Road outbound

24.6

High Street /Castle Street

17.6

High Street Guildhall

20.2

High Street Topsham

18.6

Holloway Street

23.0

Honiton Road

29.4

Honiton Road façade

15.8

Ladysmith School/Pretoria Road

11.8

Langaton Lane

12.5

Livery Dole

27.6

Longbrook Street

17.3

Lower Coombe St

19.1

Magdalen Road (Barrack Road)

26.2

Magdalen Street

20.9

Magdalen Street façade

19.4

Market Street

19.9

Mill Lane

12.7

New Bridge St

23.6

New North Road

18.8

Newcourt Way

13.6

Newtown

11.8

North Street

26.0

Okehampton Street

19.6

Pennsylvania

16.2

Pennsylvania Road

13.5

Pinhoe

17.3

Pinhoe Road (Fairfield Avenue)

14.3

Pinhoe Road (Polsloe Road)

30.6

Pinhoe Road inbound

25.0

Queen Street

16.3

Queen's Road

13.2

RAMM 2

17.8

RAMM continuous analyser

17.4

Rear of Gervase Avenue

20.8

Red Cow II

23.8

Red Cow Village

28.6

Riverside Valley Park

9.4

Rowancroft

26.1

Salutary Mount

29.6

Sidmouth Road lamp post

22.8

Sidmouth Road Middlemoor

22.0

Sidwell Street

25.3

South Gate

22.1

South Street

20.1

St. Leonards Road

12.9

Station Road

19.8

Station Road Pinhoe

13.0

Tithebarn Link Road

16.3

Topsham Road (Barrack Road)

17.4

Topsham Road (Countess Wear)

17.4

Topsham Road (Tollards Road)

26.6

Union Road

19.7

Venny Bridge

16.6

Western Way (Acorn)

26.5

York Road

19.8

York Road School

25.0