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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Hounslow Chiswick, Acton, Ealing, United Kingdom Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

July Air Quality Analysis

Hounslow Chiswick, Acton, Ealing, United Kingdom

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
8th Jul 2022
66AQI
Lowest AQI recorded on
28th Jul 2023
15AQI

Same Day Analysis (30th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 30th Jul - 31st Jul 2026

Hounslow Chiswick, Acton, Ealing, United Kingdom

AQI
Day
Night
.

5 AM30th Jul 2026

9 PM

4 AM31st Jul 2026

Day time
Avg. Highest Time
4PM30th Jul

46AQI

Avg. Lowest Time
9AM30th Jul

21AQI

Night time
Avg. Highest Time
9PM30th Jul

29AQI

Avg. Lowest Time
12AM31st Jul

21AQI

In the last 24 hours,

Hounslow Chiswick's AQI reached its highest point of 46 at 4 PM during the Day, while the lowest point, 21, was recorded at 12 AM during the Night between 30th Jul and 31st Jul 2026.

Day & Night AQI Trend : Jul 2026

Hounslow Chiswick, Acton, Ealing, United Kingdom

Jul
02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st
Day
Night
2nd Jul 2026225 AMAQI
2nd Jul 202686 AMAQI
2nd Jul 2026207 AMAQI
2nd Jul 2026338 AMAQI
2nd Jul 2026349 AMAQI
2nd Jul 20263410 AMAQI
2nd Jul 20262811 AMAQI
2nd Jul 20262012 PMAQI
2nd Jul 2026161 PMAQI
2nd Jul 2026252 PMAQI
2nd Jul 2026183 PMAQI
2nd Jul 2026184 PMAQI
2nd Jul 2026295 PMAQI
2nd Jul 2026276 PMAQI
2nd Jul 2026277 PMAQI
2nd Jul 2026268 PMAQI
2nd Jul 2026209 PMAQI
2nd Jul 20262110 PMAQI
2nd Jul 20262211 PMAQI
3rd Jul 20262412 AMAQI
3rd Jul 2026241 AMAQI
3rd Jul 2026142 AMAQI
3rd Jul 2026143 AMAQI
3rd Jul 2026244 AMAQI

21°C16/26°C

3rd Jul 2026235 AMAQI
3rd Jul 2026266 AMAQI
3rd Jul 2026257 AMAQI
3rd Jul 2026248 AMAQI
3rd Jul 2026269 AMAQI
3rd Jul 20262510 AMAQI
3rd Jul 20262511 AMAQI
3rd Jul 20262212 PMAQI
3rd Jul 2026221 PMAQI
3rd Jul 2026292 PMAQI
3rd Jul 2026233 PMAQI
3rd Jul 2026274 PMAQI
3rd Jul 2026285 PMAQI
3rd Jul 2026316 PMAQI
3rd Jul 2026267 PMAQI
3rd Jul 2026288 PMAQI
3rd Jul 2026259 PMAQI
3rd Jul 20262710 PMAQI
3rd Jul 20262811 PMAQI
4th Jul 20262412 AMAQI
4th Jul 2026231 AMAQI
4th Jul 2026242 AMAQI
4th Jul 2026243 AMAQI
4th Jul 2026254 AMAQI

20°C13/27°C

4th Jul 2026205 AMAQI
4th Jul 2026166 AMAQI
4th Jul 202687 AMAQI
4th Jul 2026268 AMAQI
4th Jul 2026269 AMAQI
4th Jul 20262510 AMAQI
4th Jul 20262311 AMAQI
4th Jul 20262412 PMAQI
4th Jul 2026221 PMAQI
4th Jul 202682 PMAQI
4th Jul 202683 PMAQI
4th Jul 2026174 PMAQI
4th Jul 2026105 PMAQI
4th Jul 2026176 PMAQI
4th Jul 2026187 PMAQI
4th Jul 2026188 PMAQI
4th Jul 2026129 PMAQI
4th Jul 20261810 PMAQI
4th Jul 20262411 PMAQI
5th Jul 20261612 AMAQI
5th Jul 2026171 AMAQI
5th Jul 2026162 AMAQI
5th Jul 2026163 AMAQI
5th Jul 2026124 AMAQI

22°C14/29°C

5th Jul 2026105 AMAQI
5th Jul 2026246 AMAQI
5th Jul 2026187 AMAQI
5th Jul 2026168 AMAQI
5th Jul 2026249 AMAQI
5th Jul 20262410 AMAQI
5th Jul 20262211 AMAQI
5th Jul 20261412 PMAQI
5th Jul 2026181 PMAQI
5th Jul 2026222 PMAQI
5th Jul 2026283 PMAQI
5th Jul 2026264 PMAQI
5th Jul 2026185 PMAQI
5th Jul 202686 PMAQI
5th Jul 202687 PMAQI
5th Jul 202688 PMAQI
5th Jul 202689 PMAQI
5th Jul 2026810 PMAQI
5th Jul 20261211 PMAQI
6th Jul 20261212 AMAQI
6th Jul 2026141 AMAQI
6th Jul 2026182 AMAQI
6th Jul 2026133 AMAQI
6th Jul 2026134 AMAQI

23°C17/29°C

6th Jul 202685 AMAQI
6th Jul 2026126 AMAQI
6th Jul 2026207 AMAQI
6th Jul 2026298 AMAQI
6th Jul 2026209 AMAQI
6th Jul 20261910 AMAQI
6th Jul 20262111 AMAQI
6th Jul 20261812 PMAQI
6th Jul 2026101 PMAQI
6th Jul 2026292 PMAQI
6th Jul 2026293 PMAQI
6th Jul 2026294 PMAQI
6th Jul 2026205 PMAQI
6th Jul 2026176 PMAQI
6th Jul 2026127 PMAQI
6th Jul 2026108 PMAQI
6th Jul 2026129 PMAQI
6th Jul 20261010 PMAQI
6th Jul 20261011 PMAQI
7th Jul 20261212 AMAQI
7th Jul 2026171 AMAQI
7th Jul 2026192 AMAQI
7th Jul 2026213 AMAQI
7th Jul 2026214 AMAQI

25°C17/32°C

7th Jul 2026145 AMAQI
7th Jul 2026126 AMAQI
7th Jul 2026127 AMAQI
7th Jul 2026128 AMAQI
7th Jul 2026109 AMAQI
7th Jul 20263210 AMAQI
7th Jul 20262911 AMAQI
7th Jul 20262912 PMAQI
7th Jul 2026291 PMAQI
7th Jul 2026282 PMAQI
7th Jul 2026283 PMAQI
7th Jul 2026254 PMAQI
7th Jul 2026315 PMAQI
7th Jul 2026306 PMAQI
7th Jul 2026297 PMAQI
7th Jul 2026288 PMAQI
7th Jul 2026229 PMAQI
7th Jul 20263610 PMAQI
7th Jul 20262211 PMAQI
8th Jul 20263012 AMAQI
8th Jul 2026291 AMAQI
8th Jul 2026222 AMAQI
8th Jul 2026243 AMAQI
8th Jul 2026274 AMAQI

25°C18/31°C

8th Jul 2026225 AMAQI
8th Jul 2026206 AMAQI
8th Jul 2026167 AMAQI
8th Jul 2026248 AMAQI
8th Jul 2026249 AMAQI
8th Jul 20262710 AMAQI
8th Jul 20262911 AMAQI
8th Jul 20262912 PMAQI
8th Jul 2026291 PMAQI
8th Jul 2026292 PMAQI
8th Jul 2026293 PMAQI
8th Jul 2026294 PMAQI
8th Jul 2026295 PMAQI
8th Jul 2026276 PMAQI
8th Jul 2026277 PMAQI
8th Jul 2026278 PMAQI
8th Jul 2026289 PMAQI
8th Jul 20262610 PMAQI
8th Jul 20263411 PMAQI
9th Jul 20263612 AMAQI
9th Jul 2026391 AMAQI
9th Jul 2026482 AMAQI
9th Jul 2026363 AMAQI
9th Jul 2026304 AMAQI

27°C20/33°C

9th Jul 2026325 AMAQI
9th Jul 2026426 AMAQI
9th Jul 2026427 AMAQI
9th Jul 2026248 AMAQI
9th Jul 2026319 AMAQI
9th Jul 20262710 AMAQI
9th Jul 20262811 AMAQI
9th Jul 20264012 PMAQI
9th Jul 2026381 PMAQI
9th Jul 2026382 PMAQI
9th Jul 2026403 PMAQI
9th Jul 2026294 PMAQI
9th Jul 2026305 PMAQI
9th Jul 2026296 PMAQI
9th Jul 2026297 PMAQI
9th Jul 2026298 PMAQI
9th Jul 2026269 PMAQI
9th Jul 20262610 PMAQI
9th Jul 20261811 PMAQI
10th Jul 20262112 AMAQI
10th Jul 2026201 AMAQI
10th Jul 2026222 AMAQI
10th Jul 2026203 AMAQI
10th Jul 2026224 AMAQI

28°C21/35°C

10th Jul 2026245 AMAQI
10th Jul 2026186 AMAQI
10th Jul 2026297 AMAQI
10th Jul 2026318 AMAQI
10th Jul 2026319 AMAQI
10th Jul 20263210 AMAQI
10th Jul 20263011 AMAQI
10th Jul 20263312 PMAQI
10th Jul 2026301 PMAQI
10th Jul 2026292 PMAQI
10th Jul 2026293 PMAQI
10th Jul 2026304 PMAQI
10th Jul 2026325 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026297 PMAQI
10th Jul 2026268 PMAQI
10th Jul 2026259 PMAQI
10th Jul 20262210 PMAQI
10th Jul 20261911 PMAQI
11th Jul 20262012 AMAQI
11th Jul 2026201 AMAQI
11th Jul 2026182 AMAQI
11th Jul 2026223 AMAQI
11th Jul 2026254 AMAQI

26°C22/30°C

11th Jul 2026125 AMAQI
11th Jul 2026216 AMAQI
11th Jul 2026227 AMAQI
11th Jul 2026298 AMAQI
11th Jul 2026279 AMAQI
11th Jul 20263110 AMAQI
11th Jul 20262711 AMAQI
11th Jul 20261912 PMAQI
11th Jul 2026291 PMAQI
11th Jul 2026292 PMAQI
11th Jul 2026293 PMAQI
11th Jul 2026264 PMAQI
11th Jul 2026305 PMAQI
11th Jul 2026266 PMAQI
11th Jul 2026257 PMAQI
11th Jul 2026298 PMAQI
11th Jul 2026279 PMAQI
11th Jul 20262410 PMAQI
11th Jul 20262511 PMAQI
12th Jul 20261612 AMAQI
12th Jul 2026121 AMAQI
12th Jul 2026182 AMAQI
12th Jul 2026143 AMAQI
12th Jul 2026144 AMAQI

24°C18/31°C

12th Jul 202685 AMAQI
12th Jul 202686 AMAQI
12th Jul 2026197 AMAQI
12th Jul 2026198 AMAQI
12th Jul 2026299 AMAQI
12th Jul 20262510 AMAQI
12th Jul 20262911 AMAQI
12th Jul 20262912 PMAQI
12th Jul 2026231 PMAQI
12th Jul 2026292 PMAQI
12th Jul 2026293 PMAQI
12th Jul 2026254 PMAQI
12th Jul 2026295 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026297 PMAQI
12th Jul 2026288 PMAQI
12th Jul 2026239 PMAQI
12th Jul 20262110 PMAQI
12th Jul 20261911 PMAQI
13th Jul 20261912 AMAQI
13th Jul 2026211 AMAQI
13th Jul 2026212 AMAQI
13th Jul 2026253 AMAQI
13th Jul 2026264 AMAQI

23°C18/30°C

13th Jul 2026245 AMAQI
13th Jul 2026226 AMAQI
13th Jul 2026257 AMAQI
13th Jul 2026248 AMAQI
13th Jul 2026299 AMAQI
13th Jul 20262910 AMAQI
13th Jul 20262911 AMAQI
13th Jul 20262512 PMAQI
13th Jul 2026271 PMAQI
13th Jul 2026292 PMAQI
13th Jul 2026293 PMAQI
13th Jul 2026274 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026276 PMAQI
13th Jul 2026277 PMAQI
13th Jul 2026308 PMAQI
13th Jul 2026309 PMAQI
13th Jul 20263610 PMAQI
13th Jul 20263211 PMAQI
14th Jul 20263212 AMAQI
14th Jul 2026261 AMAQI
14th Jul 2026162 AMAQI
14th Jul 2026293 AMAQI
14th Jul 2026314 AMAQI

21°C14/29°C

14th Jul 2026275 AMAQI
14th Jul 2026226 AMAQI
14th Jul 2026247 AMAQI
14th Jul 2026298 AMAQI
14th Jul 2026299 AMAQI
14th Jul 20262710 AMAQI
14th Jul 20262711 AMAQI
14th Jul 20263012 PMAQI
14th Jul 2026271 PMAQI
14th Jul 2026322 PMAQI
14th Jul 2026313 PMAQI
14th Jul 2026324 PMAQI
14th Jul 2026365 PMAQI
14th Jul 2026386 PMAQI
14th Jul 2026297 PMAQI
14th Jul 2026228 PMAQI
14th Jul 2026329 PMAQI
14th Jul 20262610 PMAQI
14th Jul 20262711 PMAQI
15th Jul 20263012 AMAQI
15th Jul 2026291 AMAQI
15th Jul 2026402 AMAQI
15th Jul 2026243 AMAQI
15th Jul 2026324 AMAQI

23°C16/31°C

15th Jul 2026185 AMAQI
15th Jul 2026206 AMAQI
15th Jul 2026287 AMAQI
15th Jul 2026328 AMAQI
15th Jul 2026469 AMAQI
15th Jul 20263610 AMAQI
15th Jul 20261811 AMAQI
15th Jul 20262012 PMAQI
15th Jul 2026241 PMAQI
15th Jul 2026302 PMAQI
15th Jul 2026353 PMAQI
15th Jul 2026404 PMAQI
15th Jul 2026125 PMAQI
15th Jul 2026236 PMAQI
15th Jul 2026147 PMAQI
15th Jul 2026168 PMAQI
15th Jul 2026649 PMAQI
15th Jul 20262910 PMAQI
15th Jul 20262311 PMAQI
16th Jul 20262912 AMAQI
16th Jul 2026381 AMAQI
16th Jul 2026332 AMAQI
16th Jul 2026363 AMAQI
16th Jul 2026384 AMAQI

24°C18/29°C

16th Jul 2026365 AMAQI
16th Jul 2026346 AMAQI
16th Jul 2026447 AMAQI
16th Jul 2026488 AMAQI
16th Jul 2026529 AMAQI
16th Jul 20265310 AMAQI
16th Jul 20265011 AMAQI
16th Jul 20264812 PMAQI
16th Jul 2026461 PMAQI
16th Jul 2026532 PMAQI
16th Jul 2026543 PMAQI
16th Jul 2026404 PMAQI
16th Jul 2026275 PMAQI
16th Jul 2026316 PMAQI
16th Jul 2026297 PMAQI
16th Jul 2026278 PMAQI
16th Jul 2026259 PMAQI
16th Jul 20263610 PMAQI
16th Jul 20262911 PMAQI
17th Jul 20263112 AMAQI
17th Jul 2026311 AMAQI
17th Jul 2026362 AMAQI
17th Jul 2026323 AMAQI
17th Jul 2026334 AMAQI

23°C17/30°C

17th Jul 2026285 AMAQI
17th Jul 2026246 AMAQI
17th Jul 2026247 AMAQI
17th Jul 2026558 AMAQI
17th Jul 2026559 AMAQI
17th Jul 20265310 AMAQI
17th Jul 20265211 AMAQI
17th Jul 20265412 PMAQI
17th Jul 2026541 PMAQI
17th Jul 2026552 PMAQI
17th Jul 2026583 PMAQI
17th Jul 2026554 PMAQI
17th Jul 2026535 PMAQI
17th Jul 2026516 PMAQI
17th Jul 2026567 PMAQI
17th Jul 2026608 PMAQI
17th Jul 2026589 PMAQI
17th Jul 20265510 PMAQI
17th Jul 20265711 PMAQI
18th Jul 20266012 AMAQI
18th Jul 2026681 AMAQI
18th Jul 2026652 AMAQI
18th Jul 2026543 AMAQI
18th Jul 2026584 AMAQI

23°C17/30°C

18th Jul 2026555 AMAQI
18th Jul 2026566 AMAQI
18th Jul 2026587 AMAQI
18th Jul 2026588 AMAQI
18th Jul 2026649 AMAQI
18th Jul 20266610 AMAQI
18th Jul 20267211 AMAQI
18th Jul 20266412 PMAQI
18th Jul 2026581 PMAQI
18th Jul 2026602 PMAQI
18th Jul 2026533 PMAQI
18th Jul 2026514 PMAQI
18th Jul 2026525 PMAQI
18th Jul 2026526 PMAQI
18th Jul 2026627 PMAQI
18th Jul 2026608 PMAQI
18th Jul 2026559 PMAQI
18th Jul 20265710 PMAQI
18th Jul 20265011 PMAQI
19th Jul 20264912 AMAQI
19th Jul 2026321 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026233 AMAQI
19th Jul 2026234 AMAQI

20°C15/26°C

19th Jul 2026215 AMAQI
19th Jul 2026236 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026348 AMAQI
19th Jul 2026469 AMAQI
19th Jul 20264810 AMAQI
19th Jul 20263411 AMAQI
19th Jul 20262112 PMAQI
19th Jul 2026361 PMAQI
19th Jul 2026462 PMAQI
19th Jul 2026463 PMAQI
19th Jul 2026364 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026346 PMAQI
19th Jul 2026447 PMAQI
19th Jul 2026388 PMAQI
19th Jul 2026219 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262111 PMAQI
20th Jul 20262312 AMAQI
20th Jul 2026251 AMAQI
20th Jul 2026252 AMAQI
20th Jul 2026213 AMAQI
20th Jul 2026214 AMAQI

18°C12/24°C

20th Jul 2026235 AMAQI
20th Jul 2026236 AMAQI
20th Jul 2026237 AMAQI
20th Jul 2026298 AMAQI
20th Jul 2026559 AMAQI
20th Jul 20265410 AMAQI
20th Jul 20264411 AMAQI
20th Jul 20262712 PMAQI
20th Jul 2026231 PMAQI
20th Jul 2026532 PMAQI
20th Jul 2026553 PMAQI
20th Jul 2026384 PMAQI
20th Jul 2026235 PMAQI
20th Jul 2026276 PMAQI
20th Jul 2026217 PMAQI
20th Jul 2026238 PMAQI
20th Jul 2026259 PMAQI
20th Jul 20263410 PMAQI
20th Jul 20264011 PMAQI
21st Jul 20263212 AMAQI
21st Jul 2026251 AMAQI
21st Jul 2026232 AMAQI
21st Jul 2026253 AMAQI

19°C12/26°C

21st Jul 2026255 AMAQI
21st Jul 2026256 AMAQI
21st Jul 2026257 AMAQI
21st Jul 2026258 AMAQI
21st Jul 2026259 AMAQI
21st Jul 20263310 AMAQI
21st Jul 20264011 AMAQI
21st Jul 20263312 PMAQI
21st Jul 2026311 PMAQI
21st Jul 2026272 PMAQI
21st Jul 2026253 PMAQI
21st Jul 2026254 PMAQI
21st Jul 2026255 PMAQI
21st Jul 2026296 PMAQI
21st Jul 2026297 PMAQI
21st Jul 2026278 PMAQI
21st Jul 2026239 PMAQI
21st Jul 20262110 PMAQI
21st Jul 20262111 PMAQI
22nd Jul 20262512 AMAQI
22nd Jul 2026211 AMAQI
22nd Jul 2026252 AMAQI
22nd Jul 2026273 AMAQI
22nd Jul 2026254 AMAQI

20°C14/26°C

22nd Jul 2026255 AMAQI
22nd Jul 2026256 AMAQI
22nd Jul 2026257 AMAQI
22nd Jul 2026648 AMAQI
22nd Jul 2026959 AMAQI
22nd Jul 20269410 AMAQI
22nd Jul 20269311 AMAQI
22nd Jul 20266012 PMAQI
22nd Jul 2026381 PMAQI
22nd Jul 2026312 PMAQI
22nd Jul 2026363 PMAQI
22nd Jul 2026344 PMAQI
22nd Jul 2026365 PMAQI
22nd Jul 2026406 PMAQI
22nd Jul 2026447 PMAQI
22nd Jul 2026448 PMAQI
22nd Jul 2026329 PMAQI
22nd Jul 20265310 PMAQI
22nd Jul 20262311 PMAQI
23rd Jul 20263212 AMAQI
23rd Jul 2026461 AMAQI
23rd Jul 2026302 AMAQI
23rd Jul 2026253 AMAQI
23rd Jul 2026254 AMAQI

22°C17/27°C

23rd Jul 2026235 AMAQI
23rd Jul 2026216 AMAQI
23rd Jul 2026217 AMAQI
23rd Jul 2026368 AMAQI
23rd Jul 2026409 AMAQI
23rd Jul 20263610 AMAQI
23rd Jul 20262511 AMAQI
23rd Jul 20262312 PMAQI
23rd Jul 2026211 PMAQI
23rd Jul 2026272 PMAQI
23rd Jul 2026343 PMAQI
23rd Jul 2026314 PMAQI
23rd Jul 2026295 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026337 PMAQI
23rd Jul 2026298 PMAQI
23rd Jul 2026369 PMAQI
23rd Jul 20262910 PMAQI
23rd Jul 20263611 PMAQI
24th Jul 20264512 AMAQI
24th Jul 2026471 AMAQI
24th Jul 2026562 AMAQI
24th Jul 2026583 AMAQI
24th Jul 2026544 AMAQI

22°C18/26°C

24th Jul 2026505 AMAQI
24th Jul 2026466 AMAQI
24th Jul 2026387 AMAQI
24th Jul 2026388 AMAQI
24th Jul 2026519 AMAQI
24th Jul 20265710 AMAQI
24th Jul 20265511 AMAQI
24th Jul 20263612 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026542 PMAQI
24th Jul 2026573 PMAQI
24th Jul 2026554 PMAQI
24th Jul 2026545 PMAQI
24th Jul 2026526 PMAQI
24th Jul 2026547 PMAQI
24th Jul 2026428 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20264411 PMAQI
25th Jul 20264212 AMAQI
25th Jul 2026401 AMAQI
25th Jul 2026502 AMAQI
25th Jul 2026513 AMAQI
25th Jul 2026384 AMAQI

23°C17/28°C

25th Jul 2026275 AMAQI
25th Jul 2026256 AMAQI
25th Jul 2026427 AMAQI
25th Jul 2026608 AMAQI
25th Jul 2026549 AMAQI
25th Jul 20265210 AMAQI
25th Jul 20265411 AMAQI
25th Jul 20264212 PMAQI
25th Jul 2026381 PMAQI
25th Jul 2026492 PMAQI
25th Jul 2026463 PMAQI
25th Jul 2026324 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026526 PMAQI
25th Jul 2026537 PMAQI
25th Jul 2026518 PMAQI
25th Jul 2026459 PMAQI
25th Jul 20264510 PMAQI
25th Jul 20263411 PMAQI
26th Jul 20262912 AMAQI
26th Jul 2026291 AMAQI
26th Jul 2026362 AMAQI
26th Jul 2026533 AMAQI
26th Jul 2026544 AMAQI

23°C17/30°C

26th Jul 2026505 AMAQI
26th Jul 2026426 AMAQI
26th Jul 2026407 AMAQI
26th Jul 2026368 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264010 AMAQI
26th Jul 20263811 AMAQI
26th Jul 20263812 PMAQI
26th Jul 2026401 PMAQI
26th Jul 2026362 PMAQI
26th Jul 2026403 PMAQI
26th Jul 2026384 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026486 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026328 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026253 AMAQI
27th Jul 2026254 AMAQI

21°C16/27°C

27th Jul 2026255 AMAQI
27th Jul 2026296 AMAQI
27th Jul 2026297 AMAQI
27th Jul 2026328 AMAQI
27th Jul 2026539 AMAQI
27th Jul 20264410 AMAQI
27th Jul 20264411 AMAQI
27th Jul 20264612 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026233 PMAQI
27th Jul 2026404 PMAQI
27th Jul 2026385 PMAQI
27th Jul 2026446 PMAQI
27th Jul 2026407 PMAQI
27th Jul 2026328 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20262310 PMAQI
27th Jul 20262711 PMAQI
28th Jul 20263812 AMAQI
28th Jul 2026381 AMAQI
28th Jul 2026292 AMAQI
28th Jul 2026293 AMAQI
28th Jul 2026254 AMAQI

21°C14/27°C

28th Jul 2026275 AMAQI
28th Jul 2026276 AMAQI
28th Jul 2026317 AMAQI
28th Jul 2026448 AMAQI
28th Jul 2026549 AMAQI
28th Jul 20265410 AMAQI
28th Jul 20265711 AMAQI
28th Jul 20262112 PMAQI
28th Jul 2026421 PMAQI
28th Jul 2026572 PMAQI
28th Jul 2026563 PMAQI
28th Jul 2026554 PMAQI
28th Jul 2026405 PMAQI
28th Jul 2026256 PMAQI
28th Jul 2026277 PMAQI
28th Jul 2026318 PMAQI
28th Jul 2026319 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20262711 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026293 AMAQI
29th Jul 2026294 AMAQI

24°C18/31°C

29th Jul 2026255 AMAQI
29th Jul 2026256 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262910 AMAQI
29th Jul 20262511 AMAQI
29th Jul 20262712 PMAQI
29th Jul 2026251 PMAQI
29th Jul 2026402 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026325 PMAQI
29th Jul 2026316 PMAQI
29th Jul 2026337 PMAQI
29th Jul 2026348 PMAQI
29th Jul 2026329 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20263411 PMAQI
30th Jul 20263112 AMAQI
30th Jul 2026271 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026254 AMAQI

27°C20/34°C

30th Jul 2026255 AMAQI
30th Jul 2026236 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026278 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20263210 AMAQI
30th Jul 20262711 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026251 PMAQI
30th Jul 2026312 PMAQI
30th Jul 2026443 PMAQI
30th Jul 2026464 PMAQI
30th Jul 2026295 PMAQI
30th Jul 2026276 PMAQI
30th Jul 2026297 PMAQI
30th Jul 2026278 PMAQI
30th Jul 2026299 PMAQI
30th Jul 20262910 PMAQI
30th Jul 20262111 PMAQI
31st Jul 20262112 AMAQI
31st Jul 2026271 AMAQI
31st Jul 2026292 AMAQI
31st Jul 2026233 AMAQI
31st Jul 2026234 AMAQI

22°C18/27°C

31st Jul 2026255 AMAQI
5 AM
31st Jul 2026326 AMAQI
31st Jul 2026277 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026259 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262912 PMAQI
31st Jul 2026271 PMAQI
1 PM
31st Jul 2026252 PMAQI
31st Jul 2026233 PMAQI
31st Jul 2026214 PMAQI
31st Jul 2026255 PMAQI
31st Jul 2026236 PMAQI
31st Jul 2026257 PMAQI
31st Jul 2026258 PMAQI
31st Jul 2026239 PMAQI
9 PM
31st Jul 20263010 PMAQI
31st Jul 20263011 PMAQI
1 AM
4 AM

21°C16/26°C

Day time
Avg. Highest Time
9 AM - 10 AM

39AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
5 AM - 6 AM

25AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 10 AM (Avg. 39), while the lowest AQI was between 5 AM to 6 AM (Avg. 25).
Night time
Avg. Highest Time
10 PM

30AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM

28AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 30), while the lowest AQI was between 12 AM to 12 AM (Avg. 28).

2026 Days Vs Air Quality

Hounslow Chiswick, Acton, Ealing, United Kingdom

2026

90%

187

10%

21

Total number of days with different AQI categories in last 212 days in 2026 (153 days remaining)

Good
187 Days
Moderate
21 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2026, 90% of 212 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Hounslow Chiswick, Acton, Ealing, United Kingdom

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
49AQI (US)
2nd January 2026
23AQI (US)
3rd January 2026
28AQI (US)
4th January 2026
39AQI (US)
5th January 2026
47AQI (US)
6th January 2026
56AQI (US)
7th January 2026
20AQI (US)
8th January 2026
44AQI (US)
9th January 2026
25AQI (US)
10th January 2026
30AQI (US)
11th January 2026
52AQI (US)
12th January 2026
20AQI (US)
13th January 2026
15AQI (US)
14th January 2026
30AQI (US)
15th January 2026
16AQI (US)
16th January 2026
28AQI (US)
17th January 2026
37AQI (US)
18th January 2026
68AQI (US)
19th January 2026
61AQI (US)
20th January 2026
29AQI (US)
21st January 2026
17AQI (US)
22nd January 2026
37AQI (US)
23rd January 2026
51AQI (US)
24th January 2026
53AQI (US)
25th January 2026
51AQI (US)
26th January 2026
72AQI (US)
27th January 2026
48AQI (US)
28th January 2026
39AQI (US)
29th January 2026
51AQI (US)
30th January 2026
48AQI (US)
31st January 2026
38AQI (US)
1st February 2026
45AQI (US)
2nd February 2026
50AQI (US)
3rd February 2026
62AQI (US)
4th February 2026
56AQI (US)
5th February 2026
55AQI (US)
6th February 2026
49AQI (US)
7th February 2026
39AQI (US)
8th February 2026
42AQI (US)
9th February 2026
46AQI (US)
10th February 2026
45AQI (US)
11th February 2026
43AQI (US)
12th February 2026
42AQI (US)
13th February 2026
48AQI (US)
14th February 2026
49AQI (US)
15th February 2026
42AQI (US)
16th February 2026
38AQI (US)
17th February 2026
44AQI (US)
18th February 2026
41AQI (US)
19th February 2026
45AQI (US)
20th February 2026
45AQI (US)
21st February 2026
37AQI (US)
22nd February 2026
38AQI (US)
23rd February 2026
50AQI (US)
24th February 2026
35AQI (US)
25th February 2026
36AQI (US)
26th February 2026
32AQI (US)
27th February 2026
32AQI (US)
28th February 2026
33AQI (US)
1st March 2026
35AQI (US)
2nd March 2026
42AQI (US)
3rd March 2026
49AQI (US)
4th March 2026
53AQI (US)
5th March 2026
78AQI (US)
6th March 2026
57AQI (US)
7th March 2026
37AQI (US)
8th March 2026
60AQI (US)
9th March 2026
71AQI (US)
10th March 2026
44AQI (US)
11th March 2026
39AQI (US)
12th March 2026
42AQI (US)
13th March 2026
36AQI (US)
14th March 2026
34AQI (US)
15th March 2026
34AQI (US)
16th March 2026
25AQI (US)
17th March 2026
34AQI (US)
18th March 2026
32AQI (US)
19th March 2026
38AQI (US)
20th March 2026
50AQI (US)
21st March 2026
29AQI (US)
22nd March 2026
36AQI (US)
23rd March 2026
58AQI (US)
24th March 2026
48AQI (US)
25th March 2026
35AQI (US)
26th March 2026
24AQI (US)
27th March 2026
28AQI (US)
28th March 2026
32AQI (US)
29th March 2026
26AQI (US)
30th March 2026
25AQI (US)
31st March 2026
25AQI (US)
1st April 2026
28AQI (US)
2nd April 2026
26AQI (US)
3rd April 2026
25AQI (US)
4th April 2026
25AQI (US)
5th April 2026
26AQI (US)
6th April 2026
24AQI (US)
7th April 2026
29AQI (US)
8th April 2026
40AQI (US)
9th April 2026
30AQI (US)
10th April 2026
20AQI (US)
11th April 2026
31AQI (US)
12th April 2026
29AQI (US)
13th April 2026
24AQI (US)
14th April 2026
24AQI (US)
15th April 2026
26AQI (US)
16th April 2026
28AQI (US)
17th April 2026
18th April 2026
24AQI (US)
19th April 2026
28AQI (US)
20th April 2026
22AQI (US)
21st April 2026
22AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
24th April 2026
21AQI (US)
25th April 2026
39AQI (US)
26th April 2026
42AQI (US)
27th April 2026
46AQI (US)
28th April 2026
31AQI (US)
29th April 2026
23AQI (US)
30th April 2026
25AQI (US)
1st May 2026
26AQI (US)
2nd May 2026
39AQI (US)
3rd May 2026
40AQI (US)
4th May 2026
53AQI (US)
5th May 2026
40AQI (US)
6th May 2026
30AQI (US)
7th May 2026
28AQI (US)
8th May 2026
41AQI (US)
9th May 2026
10th May 2026
32AQI (US)
11th May 2026
25AQI (US)
12th May 2026
28AQI (US)
13th May 2026
25AQI (US)
14th May 2026
22AQI (US)
15th May 2026
30AQI (US)
16th May 2026
34AQI (US)
17th May 2026
37AQI (US)
18th May 2026
34AQI (US)
19th May 2026
34AQI (US)
20th May 2026
32AQI (US)
21st May 2026
37AQI (US)
22nd May 2026
30AQI (US)
23rd May 2026
43AQI (US)
24th May 2026
62AQI (US)
25th May 2026
39AQI (US)
26th May 2026
39AQI (US)
27th May 2026
43AQI (US)
28th May 2026
41AQI (US)
29th May 2026
47AQI (US)
30th May 2026
28AQI (US)
31st May 2026
41AQI (US)
1st June 2026
38AQI (US)
2nd June 2026
24AQI (US)
3rd June 2026
22AQI (US)
4th June 2026
16AQI (US)
5th June 2026
21AQI (US)
6th June 2026
26AQI (US)
7th June 2026
27AQI (US)
8th June 2026
22AQI (US)
9th June 2026
20AQI (US)
10th June 2026
31AQI (US)
11th June 2026
32AQI (US)
12th June 2026
16AQI (US)
13th June 2026
23AQI (US)
14th June 2026
21AQI (US)
15th June 2026
25AQI (US)
16th June 2026
28AQI (US)
17th June 2026
19AQI (US)
18th June 2026
25AQI (US)
19th June 2026
26AQI (US)
20th June 2026
22AQI (US)
21st June 2026
23AQI (US)
22nd June 2026
24AQI (US)
23rd June 2026
26AQI (US)
24th June 2026
50AQI (US)
25th June 2026
37AQI (US)
26th June 2026
38AQI (US)
27th June 2026
31AQI (US)
28th June 2026
26AQI (US)
29th June 2026
25AQI (US)
30th June 2026
23AQI (US)
1st July 2026
22AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
25AQI (US)
4th July 2026
19AQI (US)
5th July 2026
16AQI (US)
6th July 2026
17AQI (US)
7th July 2026
23AQI (US)
8th July 2026
27AQI (US)
9th July 2026
33AQI (US)
10th July 2026
26AQI (US)
11th July 2026
25AQI (US)
12th July 2026
22AQI (US)
13th July 2026
27AQI (US)
14th July 2026
28AQI (US)
15th July 2026
28AQI (US)
16th July 2026
39AQI (US)
17th July 2026
47AQI (US)
18th July 2026
59AQI (US)
19th July 2026
32AQI (US)
20th July 2026
31AQI (US)
21st July 2026
27AQI (US)
22nd July 2026
42AQI (US)
23rd July 2026
30AQI (US)
24th July 2026
48AQI (US)
25th July 2026
44AQI (US)
26th July 2026
38AQI (US)
27th July 2026
32AQI (US)
28th July 2026
37AQI (US)
29th July 2026
30AQI (US)
30th July 2026
28AQI (US)
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

39AQI (US)

44AQI (US)

41AQI (US)

28AQI (US)

36AQI (US)

26AQI (US)

31AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202635AQI (US)

22
9
25
3
25
6
28
28
2
30
29
1
187
21

Highest AQI (US) recorded in

February

44AQI (US)

Lowest AQI (US) recorded in

June

26AQI (US)

202541AQI (US)

16
13
2
12
16
12
18
1
20
10
28
3
28
2
29
2
26
5
29
1
18
13
22
8
25
6
265
97
3

Highest AQI (US) recorded in

March

59AQI (US)

Lowest AQI (US) recorded in

September

26AQI (US)

202441AQI (US)

19
12
26
3
19
9
30
19
12
25
4
29
2
22
8
22
8
29
2
17
13
29
2
286
75

Highest AQI (US) recorded in

March

50AQI (US)

Lowest AQI (US) recorded in

December

31AQI (US)

202340AQI (US)

21
8
1
1
13
6
2
25
1
22
8
30
1
22
8
31
30
1
18
11
22
9
20
9
25
6
279
68
3
1

Highest AQI (US) recorded in

January

49AQI (US)

Lowest AQI (US) recorded in

August

26AQI (US)

202248AQI (US)

16
14
1
21
1
9
21
1
22
8
22
6
22
7
20
4
1
22
6
17
12
2
23
6
1
14
15
2
209
100
7

Highest AQI (US) recorded in

March

62AQI (US)

Lowest AQI (US) recorded in

February

36AQI (US)

202139AQI (US)

26
4
24
4
23
7
1
26
4
26
3
27
3
25
6
31
18
12
27
4
20
10
23
8
296
65
1

Highest AQI (US) recorded in

March

46AQI (US)

Lowest AQI (US) recorded in

August

29AQI (US)

202035AQI (US)

10
3
12
8
1
18
25
5
31
19
7
28
2
27
1
21
7
1
1
29
2
220
35
2
1

Highest AQI (US) recorded in

April

55AQI (US)

Lowest AQI (US) recorded in

July

23AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2022(Avg.)
48AQI (US)
Least Polluted Year Recorded
2020(Avg.)
35AQI (US)

Hounslow Chiswick's annual 2026 AQI (US) (35) shows an average percentage change of -13.1% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (39), 2022 (48), 2023 (40), 2024 (41), 2025 (41).