OCC 22A NA1.pdf

Customer:
Pedro Rocha e Abreu

Testing Facility:
SOCOTEC
Oxford City Council
Unit 12
69 Oldbury Orchard
Moorbrook
Churchdown
Southmead Industrial
Gloucester
Park
GL3 2NX
Didcot
Oxfordshire
OX11 7HP

Quotation
DIF-ANU-10607

Samples
08 February 2022
Number:
(Period 1)
Received:

Customer

Analysis
16 February 2022
Order Number:
Completed:

Customer

Report Date:
17 February 2022
Reference:
Nitrogen Dioxide Diffusion Tube Analysis Report

The samples have been analysed in accordance with SOCOTEC’s standard operating procedure ANU/SOP/1015.
This  method  meets  the  guidelines  set  out  in  DEFRA’s  ‘Diffusion  Tubes  for  Ambient  NO2  Monitoring:  Practical
Guidance.’

The  tubes  were  prepared  by  spiking  acetone:triethanolamine  (50:50)  onto  the  grids  prior  to  the  tubes  being
assembled. The tubes were desorbed with distilled water and the extract analysed using a segmented flow  auto
analyser  with  ultraviolet  detection.  All  samples  were  received  in  good  condition,  unless  otherwise  stated  in  the
comments field of results table. Please note:

(i)  As set out in the practical guidance, the results were initially calculated assuming an ambient temperature of
  11oC, the reported values have been adjusted to 20oC to allow for direct comparison with EU limits.

(ii) The reported results have not been bias adjusted.

This analysis of diffusion tube samples to determine the amount of nitrogen dioxide present on the tube is within
the  scope  of  our  UKAS  schedule.  Any  further  calculations  and  assessments  requiring  exposure  details  and
conditions fall outside the scope of our accreditation. In the AIR PT intercomparison scheme for comparing spiked
Nitrogen Dioxide diffusion tubes, SOCOTEC currently holds the highest rank of a Satisfactory laboratory.

This report shall not be reproduced except in full without approval of the laboratory.

Approved By

David Young
Senior Analyst

1252
Test Report: OCC/22A/NA1   Page 1 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

05/01/2022
02/02/2022
OCC/22A/NA1S1
226 Botley Rd
672.25
1.71
36.6
19

09:45
10:00
05/01/2022
02/02/2022
OCC/22A/NA1S2
Botley Rd N - Prest
672.22
1.52
32.4
16.9

09:50
10:03
05/01/2022
02/02/2022
OCC/22A/NA1S3
Botley Rd - Hiluico
672.17
2.02
43
22.4

09:55
10:05
05/01/2022
02/02/2022
OCC/22A/NA1S4
Botley Rd - Mill St
672.12
1.61
34.3
17.9

10:00
10:07
05/01/2022
02/02/2022
OCC/22A/NA1S5
Beckelt Street
672.13
1.93
41.2
21.4

10:02
10:10
Oswey Lane Holly
05/01/2022
02/02/2022
OCC/22A/NA1S6
672.12
1.75
37.4
19.4

Dusk
10:05
10:12
05/01/2022
02/02/2022
OCC/22A/NA1S7
Thames St - Oxpens
672.08
1.39
29.6
15.4

10:10
10:15
05/01/2022
02/02/2022
OCC/22A/NA1S8
Friars Wharf
672.13
1.42
30.3
15.8

10:12
10:20
New Butthen Wycke
05/01/2022
02/02/2022
OCC/22A/NA1S9
672.12
1.7
36.3
18.9

- Thames Street
10:15
10:22


1252
Test Report: OCC/22A/NA1   Page 2 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

Speedwed Street
05/01/2022
02/02/2022
OCC/22A/NA1S10
672.12
2.17
46.3
24.1

Littlegate
10:17
10:24
Speedwell Street - St
05/01/2022
02/02/2022
OCC/22A/NA1S11
672.10
2.45
52.3
27.2

Aldates
10:20
10:26
05/01/2022
02/02/2022
OCC/22A/NA1S12
Thames Street
672.03
1.64
34.9
18.2

10:28
10:30
05/01/2022
02/02/2022
OCC/22A/NA1S13
Folly Bridge
672.08
1.92
41
21.3

10:30
10:35
05/01/2022
02/02/2022
OCC/22A/NA1S14
St Ebbes
672.03
1.15
24.6
12.8

10:35
10:37
05/01/2022
02/02/2022
OCC/22A/NA1S15
St Ebbes
672.03
1.09
23.2
12

10:35
10:37
05/01/2022
02/02/2022
OCC/22A/NA1S16
St Ebbes
672.03
1.15
24.6
12.8

10:35
10:37
05/01/2022
02/02/2022
OCC/22A/NA1S17
Old Abingdon Rd
672.08
1.41
30.1
15.7

10:40
10:45
Lamp post 52
05/01/2022
02/02/2022
OCC/22A/NA1S18
671.97
2.41
51.3
26.7

Abingdon Rd
10:50
10:48


1252
Test Report: OCC/22A/NA1   Page 3 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

Weirs Lane -
05/01/2022
02/02/2022
OCC/22A/NA1S19
671.93
2.05
43.6
22.7

Abingdon Rd
10:53
10:49
Bondavy Brook -
05/01/2022
02/02/2022
OCC/22A/NA1S20
671.87
2.45
52.2
27.2

Iffley Road
11:00
10:52
Lenthall Rd
05/01/2022
02/02/2022
OCC/22A/NA1S21
671.83
0.95
20.2
10.5

Allotments
11:10
11:00
05/01/2022
02/02/2022
OCC/22A/NA1S22
Rose Hill
671.83
1.68
35.7
18.6

11:15
11:05
70 Blackbirds Leys
05/01/2022
02/02/2022
OCC/22A/NA1S23
671.83
1.75
37.4
19.5

Road
11:20
11:10
Blackbird Leys
05/01/2022
02/02/2022
OCC/22A/NA1S24
671.83
1.62
34.6
18

Nursery
11:24
11:14
05/01/2022
02/02/2022
OCC/22A/NA1S25
BMW - Mini Factory
671.83
2.61
55.7
29

11:30
11:20
05/01/2022
02/02/2022
OCC/22A/NA1S26
Holloway Road
671.83
3.19
68
35.4

11:35
11:25
Oxford Rd / Between
05/01/2022
02/02/2022
OCC/22A/NA1S27
671.83
2.53
54
28.1

Towns Road
11:40
11:30


1252
Test Report: OCC/22A/NA1   Page 4 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

Oxford Rd - Lampost
05/01/2022
02/02/2022
OCC/22A/NA1S28
671.83
2.34
49.9
25.9

13
11:43
11:33
Cowley Road -
05/01/2022
02/02/2022
OCC/22A/NA1S29
671.83
1.95
41.6
21.6

Union Street
11:50
11:40
Cowley Road -
05/01/2022
02/02/2022
OCC/22A/NA1S30
671.83
2.4
51.2
26.6

James Street
11:53
11:43
05/01/2022
02/02/2022
OCC/22A/NA1S31
Magdalen Bridge
671.83
1.65
35.2
18.3

11:57
11:47
05/01/2022
02/02/2022
OCC/22A/NA1S32
Longwall Street
671.83
3
64
33.3

12:00
11:50
05/01/2022
02/02/2022
OCC/22A/NA1S33
50 High Street
671.78
2.66
56.8
29.6

12:05
11:52
05/01/2022
02/02/2022
OCC/22A/NA1S34
High Street
671.75
2.85
60.7
31.6

12:10
11:55
05/01/2022
02/02/2022
OCC/22A/NA1S35
York Place
672.33
1.8
38.3
19.9

13:00
13:20
05/01/2022
02/02/2022
OCC/22A/NA1S36
St Clements
672.28
3.29
70.1
36.4

13:05
13:22


1252
Test Report: OCC/22A/NA1   Page 5 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

05/01/2022
02/02/2022
OCC/22A/NA1S37
St Clements 2
672.23
2.6
55.4
28.8

13:10
13:24
05/01/2022
02/02/2022
OCC/22A/NA1S38
St Clements 3
672.22
2.54
54.1
28.1

13:13
13:26
49 London Road -
05/01/2022
02/02/2022
OCC/22A/NA1S39
672.25
1.97
41.9
21.8

Sandfield Rd
13:20
13:35
05/01/2022
02/02/2022
OCC/22A/NA1S40
London Rd - BHF
672.05
2.01
42.9
22.3

13:35
13:38
Wind Mill Road -
05/01/2022
02/02/2022
OCC/22A/NA1S41
672.00
2.84
60.5
31.5

West
13:40
13:40
05/01/2022
02/02/2022
OCC/22A/NA1S42
The Roundway
672.00
2.02
43
22.4

13:50
13:50
Borton Lane -
05/01/2022
02/02/2022
OCC/22A/NA1S43
671.87
1.8
38.5
20

Lampost 2
14:00
13:52
3 Summers Place -
05/01/2022
02/02/2022
OCC/22A/NA1S44
668.98
2.6
55.8
29

Lamp post 39
14:15
11:14
3 Elsfield Road -
05/01/2022
02/02/2022
OCC/22A/NA1S45
Cutteslowe
671.97
2.45
52.2
27.1

14:20
14:18
Roundabout


1252
Test Report: OCC/22A/NA1   Page 6 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

51 Summerland
05/01/2022
02/02/2022
OCC/22A/NA1S46
671.87
2
42.6
22.2

Avenue
14:30
14:22
78 Summerland
05/01/2022
02/02/2022
OCC/22A/NA1S47
671.83
1.93
41.3
21.5

Avenue
14:35
14:25
05/01/2022
02/02/2022
OCC/22A/NA1S48
A44 Woodstock Rd
671.83
3
64.1
33.3

14:40
14:30
05/01/2022
02/02/2022
OCC/22A/NA1S49
BP City Motors
671.77
2.33
49.6
25.8

14:47
14:33
Dear Tree Park and
05/01/2022
02/02/2022
OCC/22A/NA1S50
671.72
1.86
39.6
20.6

Ride
14:52
14:35
05/01/2022
02/02/2022
OCC/22A/NA1S51
Summertown Parade
671.75
1.78
38
19.8

15:00
14:45
Cherwell School -
05/01/2022
02/02/2022
OCC/22A/NA1S52
671.73
1.35
28.8
15

Manston Ferry
15:06
14:50
Walton Street -
05/01/2022
02/02/2022
OCC/22A/NA1S53
671.75
1.62
34.6
18

Lampost 18
15:15
15:00
05/01/2022
02/02/2022
OCC/22A/NA1S54
Beanmont Street
671.80
2.04
43.6
22.7

15:17
15:05


1252
Test Report: OCC/22A/NA1   Page 7 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

05/01/2022
02/02/2022
OCC/22A/NA1S55
St Gilles
671.78
2.01
42.9
22.3

15:20
15:07
George Street -
05/01/2022
02/02/2022
OCC/22A/NA1S56
671.75
1.97
42.1
21.9

Magdalen St
15:25
15:10
05/01/2022
02/02/2022
OCC/22A/NA1S57
St Michaels St
671.70
1.39
29.7
15.5

15:30
15:12
05/01/2022
02/02/2022
OCC/22A/NA1S58
Cornmarket St
671.67
1.67
35.7
18.6

15:35
15:15
05/01/2022
02/02/2022
OCC/22A/NA1S59
high St / Turn Street
671.62
1.76
37.5
19.5

15:40
15:17
05/01/2022
02/02/2022
OCC/22A/NA1S60
Turn St / Market St
671.62
1.55
33.1
17.2

15:43
15:20
05/01/2022
02/02/2022
OCC/22A/NA1S61
St Aldens 1
671.67
2.2
47
24.4

15:45
15:25
05/01/2022
02/02/2022
OCC/22A/NA1S62
St Aldens 2
671.67
2.4
51.2
26.6

15:45
15:25
05/01/2022
02/02/2022
OCC/22A/NA1S63
St Aldens 3
671.67
2.27
48.6
25.2

15:45
15:25


1252
Test Report: OCC/22A/NA1   Page 8 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

05/01/2022
02/02/2022
OCC/22A/NA1S64
Queen Street
671.70
1.95
41.6
21.6

15:48
15:30
05/01/2022
02/02/2022
OCC/22A/NA1S65
Bonn Square
671.72
2.04
43.5
22.6

15:50
15:33
05/01/2022
02/02/2022
OCC/22A/NA1S66
New Inn - Hall St
671.70
1.57
33.4
17.4

15:53
15:35
05/01/2022
02/02/2022
OCC/22A/NA1S67
New Road
671.72
2.6
55.5
28.9

15:55
15:38
05/01/2022
02/02/2022
OCC/22A/NA1S68
Castle Street
671.67
2.05
43.7
22.7

16:00
15:40
05/01/2022
02/02/2022
OCC/22A/NA1S69
Norfolk Street
671.65
1.97
42
21.8

16:03
15:42
05/01/2022
02/02/2022
OCC/22A/NA1S70
Paradise Square
671.65
1.5
31.9
16.6

16:05
15:44
05/01/2022
02/02/2022
OCC/22A/NA1S71
Park End Street
671.62
2.29
48.9
25.4

16:10
15:47
05/01/2022
02/02/2022
OCC/22A/NA1S72
George Street
671.58
2.01
42.9
22.3

16:13
15:48


1252
Test Report: OCC/22A/NA1   Page 9 of 10

Exposure


Date and
Date and
Sample Number
Site
Time
Total μg
  μg m-3
ppb
Comments
Time ON
Time OFF
(Hours)

05/01/2022
02/02/2022
OCC/22A/NA1S73
Worcester St
671.58
2.14
45.6
23.7

16:15
15:50
05/01/2022
02/02/2022
OCC/22A/NA1S74
Hythe Bridge St
671.53
1.89
40.3
21

16:20
15:52
05/01/2022
02/02/2022
OCC/22A/NA1S75
Royal Oxford Hotel
671.50
2.11
45
23.4

16:25
15:55



1252
Test Report: OCC/22A/NA1   Page 10 of 10