Web 57DHYAFZZFLMM November 1 2026 England and Wales October 2026 Purple Air PM 2 point 5 levels
The Purple Air Map uses the standard US EPA Air Quality Index AQI gradient color scale to show real-time PM2 point 5 pollutant levels
AQI Color Breakdown
Green Zero to Fifty Good Air quality is safe and satisfactory
Yellow Fifty to One Hundred Moderate Acceptable air though sensitive individuals may face minor risks
Orange One Hundred One to One Fifty Unhealthy for Sensitive Groups including children older adults and those with heart or lung conditions
Red One Hundred Fifty One to Two Hundred Unhealthy. General public may experience health effects; sensitive groups may experience more serious effects.
Purple Two Hundred One to Three Hundred Very Unhealthy Health alert everyone may experience health effects
Maroon or Brown Three Hundred Plus Hazardous Emergency conditions affecting the entire population Here depicted in gray
Purple Air Average Month of October 2026. Monitor Name
@iwweather A
@iwweather B
20 Plantation Road Oxford A
20 Plantation Road Oxford B
2020-zen A
2020-zen B
282c promenade cheltenham A
282c promenade cheltenham B
3.090 Crushing and Grinding A
3.090 Crushing and Grinding B
PM 2 point 5 micrograms per cubic meter
32
28
27
29
52
52
51
52
2
2
locality
Wight
Wight
Oxford
Oxford
Birmingham
Birmingham
Cheltenham
Cheltenham
Falmouth
Falmouth
monitor number
1
2
3
4
5
6
7
8
9
10
Purple Air Average Month of October 2026. Monitor Name
3.091 NORM A
3.091 NORM B
3.102 Upper mineral processing A
3.102 Upper mineral processing B
351 A
351 B
A6 Hospital A
A6 Hospital B
Aberdeen Avenue A
Aberdeen Avenue B
PM 2 point 5 micrograms per cubic meter
1
1
1
1
53
52
39
40
30
27
locality
Falmouth
Falmouth
Falmouth
Falmouth
Falmouth
Falmouth
Chorley
Chorley
Cambridge
Cambridge
monitor number
11
12
13
14
15
16
17
18
19
20
Purple Air Average Month of October 2026. Monitor Name
Aberystwyth A
Aberystwyth B
Acton A
Acton B
AGWood A
AGWood B
AJ A
AJ B
Allerton C of E A
Allerton C of E B
PM 2 point 5 micrograms per cubic meter
16
15
44
40
0
32
43
42
40
36
locality
Aberystwyth
Aberystwyth
Acton near London
Acton near London
Weybridge
Weybridge
AJ
AJ
Alwoodley
Alwoodley
monitor number
21
22
23
24
25
26
27
28
29
30
Purple Air Average Month of October 2026. Monitor Name
Allington A20 KENT A
Allington A20 KENT B
Andover Rd A
Andover Rd B
Apley Castle A
Apley Castle B
Arnside Outside A
Arnside Outside B
Ashford A
Ashford B
PM 2 point 5 micrograms per cubic meter
13
64
57
56
8891
28
31
36
46
45
locality
Maidstone
Maidstone
Andover Rd
Andover Rd
Apley
Apley
Arnside
Arnside
Ashford
Ashford
monitor number
31
32
33
34
35
36
37
38
39
40
Purple Air Average Month of October 2026. Monitor Name
Astley Road A
Astley Road B
B4 Indoor A
B4 Indoor B
B85 Indoor A
B85 Indoor B
B85 Yard A
B85 Yard B
b86e A
b86e B
PM 2 point 5 micrograms per cubic meter
51
52
12
12
8
8
30
29
63
62
locality
Astley Road
Astley Road
B4 Indoor
B4 Indoor
Southampton
Southampton
Southhampton
Southampton
b86e
b86e
monitor number
41
42
43
44
45
46
47
48
49
50
Purple Air Average Month of October 2026. Monitor Name
b958 A
b958 B
b999 A
b999 B
ba1e A
ba1e B
Bank House A
Bank House B
Barford St Martin A
Barford St Martin B
PM 2 point 5 micrograms per cubic meter
51
51
46
7205
53
49
52
52
44
44
locality
b958
b958
b999
b999
ba1e
ba1e
Bank House
Bank House
Barford St Martin
Barford St Martin
monitor number
51
52
53
54
55
56
57
58
59
60
Purple Air Average Month of October 2026. Monitor Name
Bath Road, Cheltenham A
Bath Road, Cheltenham B
bd3a A
bd3a B
bd9a A
bd9a B
Belvedere A
Belvedere out A
Belvedere out B
Blackburn Rd Wheelton A
PM 2 point 5 micrograms per cubic meter
38
52
73
76
48
46
14
19
21
33
locality
Cheltenham
Cheltenham
bd3a
bd3a
bd9a
bd9a
Oxford
Oxford
Oxford
Wheelton
monitor number
61
62
63
64
65
66
67
68
69
70
Purple Air Average Month of October 2026. Monitor Name
Blackburn Rd Wheelton B
Bolton-le-Sands A
Bolton-le-Sands B
Botley Road A
Botley Road B
Bouncers Lane, Prestbury A
Bouncers Lane, Prestbury B
Bracken Close A
Bracken Close B
Brinscall Ashmeadow Lane A
PM 2 point 5 micrograms per cubic meter
34
0
40
7208
29
38
38
37
41
37
locality
Wheelton
Bolton-le-Sands
Bolton-le-Sands
Oxford
Oxford
Prestbury
Prestbury
Chorley
Chorley
Brinscall
monitor number
71
72
73
74
75
76
77
78
79
80
Purple Air Average Month of October 2026. Monitor Name
Brinscall Ashmeadow Lane B
Broadley Terrace A
Broadley Terrace B
c7f8 A
c7f8 B
Calenick village A
Calenick village B
Cardiothoracic Centre Reception A
Castle Grange A
Castle Grange B
PM 2 point 5 micrograms per cubic meter
31
49
46
51
48
0
19
2
36
7693
locality
Brinscall
Broadley Terrace near London
Broadley Terrace near London
c7f8
c7f8
Calenick village
Calenick village
Newcastle
Bramhope
Bramhope
monitor number
81
82
83
84
85
86
87
88
89
90
Purple Air Average Month of October 2026. Monitor Name
CHALFONT RD 2 A
CHALFONT RD 2 B
Channels A
Channels B
Charlbury_Rd_1 A
Charlbury_Rd_1 B
Charlton Close cheltenham A
Charlton Close cheltenham B
Charltonkings infant school A
Charltonkings infant school B
PM 2 point 5 micrograms per cubic meter
30
22
27
22
26
26
27
26
47
45
locality
Oxford
Oxford
St Albans to Chelmsford
St Albans to Chelmsford
Oxford
Oxford
Charlton Close
Charlton Close
Charltonkings
Charltonkings
monitor number
91
92
93
94
95
96
97
98
99
100
Purple Air Average Month of October 2026. Monitor Name
Cheddar – Hillfield A
Cheddar – Hillfield B
Chorley Central Devonshire A
Chorley Central Devonshire B
Chorley Central South A
Chorley Central South B
Chorley South West (The Oaks) A
Chorley South West (The Oaks) B
Church Fenton Out A
Church Fenton Out B
PM 2 point 5 micrograms per cubic meter
31
32
44
38
41
37
31
39
26
26
locality
Cheddar
Cheddar
Chorley
Chorley
Chorley
Chorley
Chorley
Chorley
North Yorkshire
North Yorkshire
monitor number
101
102
103
104
105
106
107
108
109
110
Purple Air Average Month of October 2026. Monitor Name
Churchdown Indoor A
Churchwood, Fittleworth, West Sussex, RH20 1HP, UK A
Churchwood, Fittleworth, West Sussex, RH20 1HP, UK B
Cirencester Rd A
Cirencester Rd B
Clayton-le-Woods A
Clayton-le-Woods B
Clun A
Clun B
Complins Close A
PM 2 point 5 micrograms per cubic meter
0
64
37
37
34
38
6115
32
32
31
locality
Fittleworth
Fittleworth
Fittleworth
Cirencester
Cirencester
Clayton-le-Woods
Clayton-le-Woods
Clun
Clun
Complins Close
monitor number
111
112
113
114
115
116
117
118
119
120
Purple Air Average Month of October 2026. Monitor Name
Complins Close B
Crabtree Rd A
Crabtree Rd B
Crondall Weather A
Crondall Weather B
CSM 1 A
CSM 1 B
CSM 2 A
CSM 2 B
CSM 3 A
PM 2 point 5 micrograms per cubic meter
27
26
23
29
28
1
1
1
1
1
locality
Complins Close
Oxford
Oxford
Crondall
Crondall
Cornwall
Cornwall
Cornwall
Cornwall
Cornwall
monitor number
121
122
123
124
125
126
127
128
129
130
Purple Air Average Month of October 2026. Monitor Name
CSM 3 B
CU Ref 2 A
CU Ref 2 B
DARTeC PEL A
DARTeC PEL B
David Nicholls Close, Littlemore A
David Nicholls Close, Littlemore B
Dearly Preloved, 5 High Street, Prestbury, Cheltenham, Gloucestershire, GL52 3AR A
Dearly Preloved, 5 High Street, Prestbury, Cheltenham, Gloucestershire, GL52 3AR B
delerius-weather.com A
PM 2 point 5 micrograms per cubic meter
1
29
40
26
23
30
32
34
36
42
locality
Cornwall
Cranfield University Bedfordshire
Cranfield University Bedfordshire
Milton Keynes
Milton Keynes
Oxford
Oxford
Cheltenham
Cheltenham
Leeds
monitor number
131
132
133
134
135
136
137
138
139
140
Purple Air Average Month of October 2026. Monitor Name
delerius-weather.com B
Didcot A
Didcot B
Dukes Point A
Dukes Point B
Duxbury Hall A
Duxbury Hall B
Dyserth A
Dyserth B
Earl Street, Oxford A
PM 2 point 5 micrograms per cubic meter
48
37
36
27
31
42
35
443
23
30
locality
Leeds
Didcot
Didcot
Hampstead near London
Hampstead near London
Chorley
Chorley
Dyserth
Dyserth
Oxford
monitor number
141
142
143
144
145
146
147
148
149
150
Purple Air Average Month of October 2026. Monitor Name
Earl Street, Oxford B
Eaton Place A
EC64 A
EC64 B
ESI roof A
ESI roof B
Falmouth Docks A
Falmouth Docks B
Falmouth Harbour North Quay A
Falmouth Harbour North Quay B
PM 2 point 5 micrograms per cubic meter
6490
21
38
36
23
18
57
56
22
21
locality
Oxford
Eaton Place near London
EC64
EC64
ESI roof
ESI roof
Falmouth Docks
Falmouth Docks
Falmouth Harbour North Quay
Falmouth Harbour North Quay
monitor number
151
152
153
154
155
156
157
158
159
160
Purple Air Average Month of October 2026. Monitor Name
Farsley Purple Air PA-II Air Quality Sensor A
Farsley Purple Air PA-II Air Quality Sensor B
Fen Edge A
Fen Edge B
Flora Gardens A
Flora Gardens B
Freshfield Lane A
Freshfield Lane B
Fulham Riverside A
Fulham Riverside B
PM 2 point 5 micrograms per cubic meter
47
41
22
1
49
44
0
52
29
31
locality
Leeds
Leeds
Peterborough
Peterborough
Flora Gardens near London
Flora Gardens near London
Haywards Heath
Haywards Heath
Fulham Riverside near London
Fulham Riverside near London
monitor number
161
162
163
164
165
166
167
168
169
170
Purple Air Average Month of October 2026. Monitor Name
G1SAA A
G1SAA B
Garden Mead, West Hoathly A
Garden Mead, West Hoathly B
Glovers Way, Burscough. West Lancashire A
Glovers Way, Burscough. West Lancashire B
Graigwen A
Graigwen B
Great Cambourne A
Great Cambourne B
PM 2 point 5 micrograms per cubic meter
27
27
19
19
21
24
24
31
28
31
locality
Cambridge
Cambridge
West Hoathly
West Hoathly
Burscough
Burscough
Graigwen
Graigwen
Cambridge
Cambridge
monitor number
171
172
173
174
175
176
177
178
179
180
Purple Air Average Month of October 2026. Monitor Name
Great Gransden A
Great Gransden B
Great North Children’s Hospital Reception A
Hairpin Cottage Surlingham A
Hairpin Cottage Surlingham B
Hamilton Road A
Hamilton Road B
Hanover, Brighton A
Hanover, Brighton B
Hardwick A
PM 2 point 5 micrograms per cubic meter
25
26
2
351
31
23
29
40
22
33
locality
Cambridge
Cambridge
Newcastle
Norwich
Norwich
Oxford
Oxford
Brighton
Brighton
Cambridge
monitor number
181
182
183
184
185
186
187
188
189
190
Purple Air Average Month of October 2026. Monitor Name
Hardwick B
Headington Hill A
Headington Hill B
Heath Charnock Chorley A
Heath Charnock Chorley B
High Legh Primary A
High Legh Primary B
Holloway Rise A
Holloway Rise B
Horsham A
PM 2 point 5 micrograms per cubic meter
29
37
38
29
33
38
22
48
44
38
locality
Cambridge
Headington Hill
Headington Hill
Chorley
Chorley
High Legh
High Legh
Holloway Rise
Holloway Rise
Horsham
monitor number
191
192
193
194
195
196
197
198
199
200
Purple Air Average Month of October 2026. Monitor Name
Horsham B
Hunters Field A
Hunters Field B
iRobinathome007 A
iRobinathome007 B
Kingscoffe house A
Kingscoffe house B
Kingston Canal A
Kingston Canal B
Lancaster A
PM 2 point 5 micrograms per cubic meter
36
31
32
28
29
58
43
23
22
28
locality
Horsham
Hunters Field
Hunters Field
Westbury
Westbury
Kingscoffe
Kingscoffe
Oxford
Oxford
Lancaster
monitor number
201
202
203
204
205
206
207
208
209
210
Purple Air Average Month of October 2026. Monitor Name
Lancaster B
Leatherhead A
Leatherhead B
Leckhampton Road A
Leckhampton Road A
Leckhampton Road B
Leckhampton Road B
LionFreta-BXH A
LionFreta-BXH B
Llanfyrnach A
PM 2 point 5 micrograms per cubic meter
26
42
42
26
31
28
31
38
43
21
locality
Lancaster
Hawk’s Hill
Hawk’s Hill
Leckhampton
Leckhampton
Leckhampton
Leckhampton
Bexley Borough of London
Bexley Borough of London
Llanfyrnac
monitor number
211
212
213
214
215
216
217
218
219
220
Purple Air Average Month of October 2026. Monitor Name
Llanfyrnach B
Longmeadow Station A
Longmeadow Station B
Lower Woodingdean Outside A
Lower Woodingdean Outside B
LSE CKK Rooftop A
LSE CKK Rooftop B
Lymm A56 (Lymm Round Table) A
Lymm A56 (Lymm Round Table) B
Maidenhead A
PM 2 point 5 micrograms per cubic meter
22
31
33
33
34
43
38
43
4525
26
locality
Llanfyrnac
Stevenage
Stevenage
Brighton
Brighton
London
London
Lymm
Lymm
Maidenhead
monitor number
221
222
223
224
225
226
227
228
229
230
Purple Air Average Month of October 2026. Monitor Name
Maidenhead B
Main Entrance Reception New A
Marshside-UK A
Marshside-UK B
Martock A
Martock B
MK44 2LA A
MK44 2LA B
My purple A
My purple B
PM 2 point 5 micrograms per cubic meter
27
6
37
41
38
38
33
36
41
39
locality
Maidenhead
Newcastle
Southport
Southport
Martock
Martock
Milton Keynes
Milton Keynes
UK
UK
monitor number
231
232
233
234
235
236
237
238
239
240
Purple Air Average Month of October 2026. Monitor Name
Nant Y Patrick A
Nant Y Patrick B
Nantwich Weather A
Nantwich Weather B
New Victoria Wing RVI Reception A
NN13 6PN A
NN13 6PN B
North West London A
North West London B
north west London No 2 A
PM 2 point 5 micrograms per cubic meter
22
27
24
36
12
32
35
32
34
36
locality
Trefnant
Trefnant
Nantwich
Nantwich
Newcastle Upon Tyne
Brackley
Brackley
London
London
London
monitor number
241
242
243
244
245
246
247
248
249
250
Purple Air Average Month of October 2026. Monitor Name
north west London No 2 B
Noverton A
Noverton B
NSECH Supplies and Delivery Yard A
Old Road, Oxford,UK A
Old Road, Oxford,UK B
Overcoombe A
Overcoombe B
Paul’s A
Paul’s B
PM 2 point 5 micrograms per cubic meter
29
42
37
9
29
6494
36
23
26
24
locality
London
Noverton
Noverton
Newcastle Upon Tyne
Oxford
Oxford
Weymouth
Weymouth
Manchester
Manchester
monitor number
251
252
253
254
255
256
257
258
259
260
Purple Air Average Month of October 2026. Monitor Name
PCC A
PCC B
Plumbland A
Plumbland B
Porth Newquay A
Porth Newquay B
Renal Care Reception A
Ringwood A
Ringwood B
Rochdale Lib Dems A
PM 2 point 5 micrograms per cubic meter
54
53
38
34
1
14
3
27
26
43
locality
PCC
PCC
Plumbland
Plumbland
Newquay
Newquay
Newcastle Upon Tyne
Ringwood
Ringwood
Rochdale
monitor number
261
262
263
264
265
266
267
268
269
270
Purple Air Average Month of October 2026. Monitor Name
Rochdale Lib Dems B
Ruabon A
Ruabon B
Shirley Warren, Southampton, UK A
Shirley Warren, Southampton, UK B
Sixways, Charlton Kings A
Sixways, Charlton Kings B
SL005 Kirkstall Valley Primary A
SL005 Kirkstall Valley Primary B
SL006 – Primrose Hill Primary A
PM 2 point 5 micrograms per cubic meter
47
346
28
3
29
38
33
32
20
29
locality
Rochdale
Plas Madoc
Plas Madoc
Southampton
Southampton
Charlton Kings
Charlton Kings
Leeds
Leeds
Leeds
monitor number
271
272
273
274
275
276
277
278
279
280
Purple Air Average Month of October 2026. Monitor Name
SL006 – Primrose Hill Primary B
SL007 Ninelands Primary A
SL007 Ninelands Primary B
SL011 – West End Grove, Horsforth A
SL011 – West End Grove, Horsforth B
SL020- Rothwell Community Hub A
SL020- Rothwell Community Hub B
SL025 – Oakwood A
SL025 – Oakwood B
SL026 Richmond Avenue A
PM 2 point 5 micrograms per cubic meter
25
22
22
16
26
6131
6390
26
29
32
locality
Leeds
Leeds
Leeds
Horsforth
Horsforth
Leeds
Leeds
Oakwood
Oakwood
Leeds
monitor number
281
282
283
284
285
286
287
288
289
290
Purple Air Average Month of October 2026. Monitor Name
SL026 Richmond Avenue B
SL037 Lotherton Hall A
SL037 Lotherton Hall B
SL040 Beckett Park A
SL040 Beckett Park B
SL042 Manston Grove A
SL042 Manston Grove B
SL050 – Bardsey A
SL050 – Bardsey B
SL051 – Bramham A
PM 2 point 5 micrograms per cubic meter
25
3539
24
9
44
36
32
24
26
18
locality
Leeds
Leeds
Leeds
Leeds
Leeds
Leeds
Leeds
East Rigton
East Rigton
Bramham
monitor number
291
292
293
294
295
296
297
298
299
300
Purple Air Average Month of October 2026. Monitor Name
SL051 – Bramham B
SL056 – Infirmary Street/East Parade A
SL056 – Infirmary Street/East Parade B
SL062 Stainburn View A
SL062 Stainburn View B
SL080 – Sunnyview Terrace A
SL080 – Sunnyview Terrace B
SL94 – TEST A
SL94 – TEST B
Smarden (outdoors) A
PM 2 point 5 micrograms per cubic meter
23
39
36
8
27
54
49
56
45
55
locality
Bramham
Infirmary Street
Infirmary Street
Stainburn
Stainburn
Leeds
Leeds
Leeds
Leeds
Smarden
monitor number
301
302
303
304
305
306
307
308
309
310
Purple Air Average Month of October 2026. Monitor Name
Smarden (outdoors) B
SN126JU A
SN126JU B
SOEE1461_PA1 A
SOEE1461_PA1 B
SOEE1461_PA11 A
SOEE1461_PA11 B
SOEE1461_PA12 A
SOEE1461_PA12 B
SOEE1461_PA18 A
PM 2 point 5 micrograms per cubic meter
2
315
322
51
48
84
84
82
80
74
locality
Smarden
Wiltshire
Wiltshire
Leeds
Leeds
Leeds
Leeds
Leeds
Leeds
Leeds
monitor number
311
312
313
314
315
316
317
318
319
320
Purple Air Average Month of October 2026. Monitor Name
SOEE1461_PA18 B
SOEE1461_PA20 A
SOEE1461_PA20 B
SOEE1461_PA7 A
SOEE1461_PA7 B
SOEE1461_PA9 A
SOEE1461_PA9 B
Spar A
Spar B
Speen A
PM 2 point 5 micrograms per cubic meter
73
174
173
61
60
150
148
27
26
31
locality
Leeds
Leeds
Leeds
Leeds
Leeds
Leeds
Leeds
Glyncoch
Glyncoch
Speen
monitor number
321
322
323
324
325
326
327
328
329
330
Purple Air Average Month of October 2026. Monitor Name
Speen B
St Albans St Julians A
St Albans St Julians B
St Michaels Avenue A
St Michaels Avenue B
St Paul’s Road A
St Paul’s Road B
St. Ebbes no 3 A
St. Ebbes no 3 B
St. Paul’s Primary School A
PM 2 point 5 micrograms per cubic meter
36
12
26
39
33
18
33
31
21
42
locality
Speen
Saint Albans
Saint Albans
Newcastle Upon Tyne
Newcastle Upon Tyne
St Paul’s
St Paul’s
Oxford
Oxford
St. Paul’s
monitor number
331
332
333
334
335
336
337
338
339
340
Purple Air Average Month of October 2026. Monitor Name
St. Paul’s Primary School B
Staunton Road A
Staunton Road B
STC-2 A
STC-2 B
Stink catcher A
Stink catcher B
Stockbottom A
Stockbottom B
The Ridings Whittle-le-Woods A
PM 2 point 5 micrograms per cubic meter
36
1594
30
34
34
43
41
40
38
41
locality
St. Paul’s
Oxford
Oxford
STC
STC
Leeds
Leeds
Stockbottom
Stockbottom
Whittle-le-Woods
monitor number
341
342
343
344
345
346
347
348
349
350
Purple Air Average Month of October 2026. Monitor Name
The Ridings Whittle-le-Woods B
TheSmogGoblin A
TheSmogGoblin B
Thorpe Hamlet A
Thorpe Hamlet B
Tidworth A
Tidworth B
Tintern A
Tintern B
Totnes A
PM 2 point 5 micrograms per cubic meter
38
57
56
31
37
45
44
24
186
24
locality
Whittle-le-Woods
Smog Goblin
Smog Goblin
Norwich
Norwich
Tidworth
Tidworth
Chepstow
Chepstow
Totnes
monitor number
351
352
353
354
355
356
357
358
359
360
Purple Air Average Month of October 2026. Monitor Name
Totnes B
Tring, Hertfordshire A
Tring, Hertfordshire B
Trumps Green A
Trumps Green B
Tugela Road A
Tugela Road B
Upton Park, Newham, London A
Upton Park, Newham, London B
Upton Scudamore A
PM 2 point 5 micrograms per cubic meter
28
57
57
24
19
44
49
53
52
28
locality
Totnes
Tring
Tring
Trumps Green
Trumps Green
Tugela
Tugela
Newham near London
Newham near London
Upton Scudamore
monitor number
361
362
363
364
365
366
367
368
369
370
Purple Air Average Month of October 2026. Monitor Name
Upton Scudamore B
WCAN-114 A
WCAN-114 B
WCAN-115 A
WCAN-115 B
Whaley Bridge A
Whaley Bridge B
Wildman Street A
Wildman Street B
Windmill Hill A
PM 2 point 5 micrograms per cubic meter
32
39
38
37
36
31
21
52
47
41
locality
Upton Scudamore
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Whaley Bridge
Whaley Bridge
Wildman
Wildman
Windmill Hill
monitor number
371
372
373
374
375
376
377
378
379
380
Purple Air Average Month of October 2026. Monitor Name
Windmill Hill B
WCAN-77 B
WCAN-78 A
WCAN-78 B
WCAN-80 A
WCAN-80 B
WCAN-81 A
WCAN-81 B
WCAN-82 A
WCAN-82 B
PM 2 point 5 micrograms per cubic meter
42
52
55
54
59
57
55
54
53
53
locality
Windmill Hill
Salisbury
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
monitor number
381
382
383
384
385
386
387
388
389
390
Purple Air Average Month of October 2026. Monitor Name
WCAN-84 A
WCAN-84 B
WCAN-86 A
WCAN-86 B
WCAN-87 A
WCAN-87 B
WCAN-88 A
WCAN-88 B
WCAN-89 A
WCAN-89 B
PM 2 point 5 micrograms per cubic meter
63
62
58
46
54
53
55
55
55
52
locality
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
monitor number
391
392
393
394
395
396
397
398
399
400
Purple Air Average Month of October 2026. Monitor Name
WCAN-9 A
WCAN-9 B
WCAN-90 A
WCAN-90 B
WCAN-91-R-2 A
WCAN-91-R-2 B
WCAN-92 A
WCAN-92 B
WCAN-94 A
WCAN-94 B
PM 2 point 5 micrograms per cubic meter
60
58
57
56
58
58
55
55
locality
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
Wiltshire
monitor number
401
402
403
404
405
406
407
408
409
410
Purple Air Average Month of October 2026. Monitor Name
