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+
September Air Quality Analysis
Acton, Ealing, United Kingdom
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Sep 2024
75AQILowest AQI recorded on
18th Sep 2025
15AQISame Day Analysis (25th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 31 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Day & Night AQI Trend: 25th Sep - 26th Sep 2026
Acton, Ealing, United Kingdom
AQI
Day
Night
.
6 AM25th Sep 2026
7 PM
5 AM26th Sep 2026
Day time
Avg. Highest Time
2PM25th Sep
50AQI
Avg. Lowest Time
8AM25th Sep
23AQI
Night time
Avg. Highest Time
3AM26th Sep
40AQI
Avg. Lowest Time
2AM26th Sep
23AQI
In the last 24 hours,
Acton's AQI reached its highest point of 50 at 2 PM during the Day, while the lowest point, 23, was recorded at 2 AM during the Night between 25th Sep and 26th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Acton, Ealing, United Kingdom
AugSep
28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
28th Aug 2026276 AMAQI
28th Aug 2026317 AMAQI
28th Aug 2026388 AMAQI
28th Aug 2026259 AMAQI
28th Aug 20262510 AMAQI
28th Aug 20262511 AMAQI
28th Aug 20262512 PMAQI
28th Aug 2026381 PMAQI
28th Aug 2026382 PMAQI
28th Aug 2026253 PMAQI
28th Aug 2026274 PMAQI
28th Aug 2026295 PMAQI
28th Aug 2026296 PMAQI
28th Aug 2026297 PMAQI
28th Aug 2026368 PMAQI
28th Aug 2026259 PMAQI
28th Aug 20263410 PMAQI
28th Aug 20263311 PMAQI
29th Aug 20262912 AMAQI
29th Aug 2026291 AMAQI
29th Aug 2026292 AMAQI
29th Aug 2026343 AMAQI
29th Aug 2026314 AMAQI
29th Aug 2026295 AMAQI
20°C16/25°C
29th Aug 2026386 AMAQI
29th Aug 2026337 AMAQI
29th Aug 2026278 AMAQI
29th Aug 2026259 AMAQI
29th Aug 20262910 AMAQI
29th Aug 20262911 AMAQI
29th Aug 20262512 PMAQI
29th Aug 2026291 PMAQI
29th Aug 2026212 PMAQI
29th Aug 2026213 PMAQI
29th Aug 2026254 PMAQI
29th Aug 2026235 PMAQI
29th Aug 2026236 PMAQI
29th Aug 2026307 PMAQI
29th Aug 2026298 PMAQI
29th Aug 2026299 PMAQI
29th Aug 20262510 PMAQI
29th Aug 20263411 PMAQI
30th Aug 20264012 AMAQI
30th Aug 2026401 AMAQI
30th Aug 2026312 AMAQI
30th Aug 2026273 AMAQI
30th Aug 2026234 AMAQI
30th Aug 2026325 AMAQI
18°C16/19°C
30th Aug 2026476 AMAQI
30th Aug 2026347 AMAQI
30th Aug 2026178 AMAQI
30th Aug 2026199 AMAQI
30th Aug 20262510 AMAQI
30th Aug 20262911 AMAQI
30th Aug 20263212 PMAQI
30th Aug 2026231 PMAQI
30th Aug 2026272 PMAQI
30th Aug 2026313 PMAQI
30th Aug 2026384 PMAQI
30th Aug 2026255 PMAQI
30th Aug 2026296 PMAQI
30th Aug 2026237 PMAQI
30th Aug 2026258 PMAQI
30th Aug 2026329 PMAQI
30th Aug 20264210 PMAQI
30th Aug 20263811 PMAQI
31st Aug 20264612 AMAQI
31st Aug 2026441 AMAQI
31st Aug 2026442 AMAQI
31st Aug 2026363 AMAQI
31st Aug 2026294 AMAQI
31st Aug 2026255 AMAQI
18°C15/23°C
31st Aug 2026346 AMAQI
31st Aug 2026387 AMAQI
31st Aug 2026258 AMAQI
31st Aug 2026259 AMAQI
31st Aug 2026810 AMAQI
31st Aug 2026811 AMAQI
31st Aug 20261612 PMAQI
31st Aug 202681 PMAQI
31st Aug 202682 PMAQI
31st Aug 202683 PMAQI
31st Aug 2026234 PMAQI
31st Aug 202685 PMAQI
31st Aug 202686 PMAQI
31st Aug 202687 PMAQI
31st Aug 2026188 PMAQI
31st Aug 2026279 PMAQI
31st Aug 20262910 PMAQI
31st Aug 20263311 PMAQI
1st Sep 20262912 AMAQI
1st Sep 2026271 AMAQI
1st Sep 2026292 AMAQI
1st Sep 2026273 AMAQI
1st Sep 2026214 AMAQI
1st Sep 2026215 AMAQI
18°C15/21°C
1st Sep 2026216 AMAQI
1st Sep 2026257 AMAQI
1st Sep 2026208 AMAQI
1st Sep 2026169 AMAQI
1st Sep 20262010 AMAQI
1st Sep 20262511 AMAQI
1st Sep 20262112 PMAQI
1st Sep 2026211 PMAQI
1st Sep 2026232 PMAQI
1st Sep 2026253 PMAQI
1st Sep 2026254 PMAQI
1st Sep 2026235 PMAQI
1st Sep 2026256 PMAQI
1st Sep 2026277 PMAQI
1st Sep 2026278 PMAQI
1st Sep 2026239 PMAQI
1st Sep 20263410 PMAQI
1st Sep 20264811 PMAQI
2nd Sep 20262612 AMAQI
2nd Sep 2026241 AMAQI
2nd Sep 2026272 AMAQI
2nd Sep 2026253 AMAQI
2nd Sep 2026254 AMAQI
2nd Sep 2026255 AMAQI
18°C13/23°C
2nd Sep 2026256 AMAQI
2nd Sep 2026257 AMAQI
2nd Sep 2026298 AMAQI
2nd Sep 2026389 AMAQI
2nd Sep 2026810 AMAQI
2nd Sep 20262011 AMAQI
2nd Sep 20262912 PMAQI
2nd Sep 2026311 PMAQI
2nd Sep 2026312 PMAQI
2nd Sep 2026383 PMAQI
2nd Sep 2026314 PMAQI
2nd Sep 2026295 PMAQI
2nd Sep 2026296 PMAQI
2nd Sep 2026297 PMAQI
2nd Sep 2026298 PMAQI
2nd Sep 2026349 PMAQI
2nd Sep 20262210 PMAQI
2nd Sep 20261211 PMAQI
3rd Sep 20261812 AMAQI
3rd Sep 2026361 AMAQI
3rd Sep 2026382 AMAQI
3rd Sep 2026223 AMAQI
3rd Sep 2026144 AMAQI
3rd Sep 2026195 AMAQI
18°C15/22°C
3rd Sep 2026146 AMAQI
3rd Sep 2026197 AMAQI
3rd Sep 2026218 AMAQI
3rd Sep 2026259 AMAQI
3rd Sep 20261210 AMAQI
3rd Sep 20261711 AMAQI
3rd Sep 20262012 PMAQI
3rd Sep 2026191 PMAQI
3rd Sep 2026212 PMAQI
3rd Sep 2026213 PMAQI
3rd Sep 2026164 PMAQI
3rd Sep 2026235 PMAQI
3rd Sep 2026296 PMAQI
3rd Sep 2026257 PMAQI
3rd Sep 2026348 PMAQI
3rd Sep 2026279 PMAQI
3rd Sep 20262710 PMAQI
3rd Sep 20262711 PMAQI
4th Sep 20262712 AMAQI
4th Sep 2026251 AMAQI
4th Sep 2026132 AMAQI
4th Sep 2026213 AMAQI
4th Sep 2026194 AMAQI
4th Sep 2026195 AMAQI
21°C17/25°C
4th Sep 2026196 AMAQI
4th Sep 2026257 AMAQI
4th Sep 2026238 AMAQI
4th Sep 2026279 AMAQI
4th Sep 20262110 AMAQI
4th Sep 20261611 AMAQI
4th Sep 20261912 PMAQI
4th Sep 2026231 PMAQI
4th Sep 2026142 PMAQI
4th Sep 2026123 PMAQI
4th Sep 2026164 PMAQI
4th Sep 2026495 PMAQI
4th Sep 2026276 PMAQI
4th Sep 2026277 PMAQI
4th Sep 2026298 PMAQI
4th Sep 2026299 PMAQI
4th Sep 20263110 PMAQI
4th Sep 20262111 PMAQI
5th Sep 20262912 AMAQI
5th Sep 2026381 AMAQI
5th Sep 2026332 AMAQI
5th Sep 2026363 AMAQI
5th Sep 2026294 AMAQI
5th Sep 2026215 AMAQI
19°C16/22°C
5th Sep 2026256 AMAQI
5th Sep 2026297 AMAQI
5th Sep 2026338 AMAQI
5th Sep 2026299 AMAQI
5th Sep 20262710 AMAQI
5th Sep 20262511 AMAQI
5th Sep 20262912 PMAQI
5th Sep 2026271 PMAQI
5th Sep 2026192 PMAQI
5th Sep 2026233 PMAQI
5th Sep 2026294 PMAQI
5th Sep 2026385 PMAQI
5th Sep 2026296 PMAQI
5th Sep 2026277 PMAQI
5th Sep 2026258 PMAQI
5th Sep 2026369 PMAQI
5th Sep 20263610 PMAQI
5th Sep 20263411 PMAQI
6th Sep 20263812 AMAQI
6th Sep 2026381 AMAQI
6th Sep 2026362 AMAQI
6th Sep 2026323 AMAQI
6th Sep 2026324 AMAQI
6th Sep 2026255 AMAQI
18°C13/22°C
6th Sep 2026256 AMAQI
6th Sep 2026217 AMAQI
6th Sep 2026238 AMAQI
6th Sep 2026219 AMAQI
6th Sep 20262310 AMAQI
6th Sep 20262111 AMAQI
6th Sep 20262712 PMAQI
6th Sep 2026211 PMAQI
6th Sep 2026212 PMAQI
6th Sep 2026233 PMAQI
6th Sep 2026254 PMAQI
6th Sep 2026295 PMAQI
6th Sep 2026256 PMAQI
6th Sep 2026277 PMAQI
6th Sep 2026218 PMAQI
6th Sep 2026219 PMAQI
6th Sep 20264010 PMAQI
6th Sep 20262511 PMAQI
7th Sep 20262512 AMAQI
7th Sep 2026211 AMAQI
7th Sep 2026252 AMAQI
7th Sep 2026253 AMAQI
7th Sep 2026294 AMAQI
7th Sep 2026365 AMAQI
20°C16/26°C
7th Sep 2026216 AMAQI
7th Sep 2026257 AMAQI
7th Sep 2026278 AMAQI
7th Sep 2026239 AMAQI
7th Sep 20262110 AMAQI
7th Sep 20263411 AMAQI
7th Sep 20264412 PMAQI
7th Sep 2026211 PMAQI
7th Sep 2026332 PMAQI
7th Sep 2026323 PMAQI
7th Sep 2026214 PMAQI
7th Sep 2026315 PMAQI
7th Sep 2026216 PMAQI
7th Sep 2026367 PMAQI
7th Sep 2026238 PMAQI
7th Sep 2026259 PMAQI
7th Sep 20262310 PMAQI
7th Sep 20262711 PMAQI
8th Sep 20263612 AMAQI
8th Sep 2026341 AMAQI
8th Sep 2026252 AMAQI
8th Sep 2026253 AMAQI
8th Sep 2026234 AMAQI
8th Sep 2026235 AMAQI
20°C17/24°C
8th Sep 2026276 AMAQI
8th Sep 2026217 AMAQI
8th Sep 2026278 AMAQI
8th Sep 2026239 AMAQI
8th Sep 20264010 AMAQI
8th Sep 20263811 AMAQI
8th Sep 20263212 PMAQI
8th Sep 2026271 PMAQI
8th Sep 2026272 PMAQI
8th Sep 2026233 PMAQI
8th Sep 2026234 PMAQI
8th Sep 2026255 PMAQI
8th Sep 2026276 PMAQI
8th Sep 2026277 PMAQI
8th Sep 2026218 PMAQI
8th Sep 2026149 PMAQI
8th Sep 20264010 PMAQI
8th Sep 20262711 PMAQI
9th Sep 20262712 AMAQI
9th Sep 2026311 AMAQI
9th Sep 2026292 AMAQI
9th Sep 2026293 AMAQI
9th Sep 2026254 AMAQI
9th Sep 2026255 AMAQI
15°C14/17°C
9th Sep 2026236 AMAQI
9th Sep 2026217 AMAQI
9th Sep 2026218 AMAQI
9th Sep 2026339 AMAQI
9th Sep 20262710 AMAQI
9th Sep 20262411 AMAQI
9th Sep 20261412 PMAQI
9th Sep 202681 PMAQI
9th Sep 2026102 PMAQI
9th Sep 2026103 PMAQI
9th Sep 2026124 PMAQI
9th Sep 202685 PMAQI
9th Sep 202686 PMAQI
9th Sep 2026207 PMAQI
9th Sep 2026248 PMAQI
9th Sep 2026299 PMAQI
9th Sep 20263610 PMAQI
9th Sep 20264811 PMAQI
10th Sep 20264412 AMAQI
10th Sep 2026331 AMAQI
10th Sep 2026332 AMAQI
10th Sep 2026423 AMAQI
10th Sep 2026424 AMAQI
10th Sep 2026405 AMAQI
15°C11/18°C
10th Sep 2026276 AMAQI
10th Sep 2026247 AMAQI
10th Sep 2026328 AMAQI
10th Sep 2026409 AMAQI
10th Sep 20263010 AMAQI
10th Sep 20262111 AMAQI
10th Sep 20262712 PMAQI
10th Sep 2026331 PMAQI
10th Sep 2026252 PMAQI
10th Sep 2026293 PMAQI
10th Sep 2026294 PMAQI
10th Sep 2026255 PMAQI
10th Sep 2026256 PMAQI
10th Sep 2026257 PMAQI
10th Sep 2026298 PMAQI
10th Sep 2026339 PMAQI
10th Sep 20263310 PMAQI
10th Sep 20262511 PMAQI
11th Sep 20262512 AMAQI
11th Sep 2026251 AMAQI
11th Sep 2026382 AMAQI
11th Sep 2026383 AMAQI
11th Sep 2026344 AMAQI
11th Sep 2026175 AMAQI
16°C12/21°C
11th Sep 2026176 AMAQI
11th Sep 2026277 AMAQI
11th Sep 2026318 AMAQI
11th Sep 2026369 AMAQI
11th Sep 20263410 AMAQI
11th Sep 20263611 AMAQI
11th Sep 20263612 PMAQI
11th Sep 2026381 PMAQI
11th Sep 2026272 PMAQI
11th Sep 2026273 PMAQI
11th Sep 2026214 PMAQI
11th Sep 2026255 PMAQI
11th Sep 2026256 PMAQI
11th Sep 2026347 PMAQI
11th Sep 2026328 PMAQI
11th Sep 2026279 PMAQI
11th Sep 20263310 PMAQI
11th Sep 20262711 PMAQI
12th Sep 20262112 AMAQI
12th Sep 2026461 AMAQI
12th Sep 2026422 AMAQI
12th Sep 2026253 AMAQI
12th Sep 2026274 AMAQI
12th Sep 2026255 AMAQI
18°C15/23°C
12th Sep 2026236 AMAQI
12th Sep 2026257 AMAQI
12th Sep 2026258 AMAQI
12th Sep 2026279 AMAQI
12th Sep 20262910 AMAQI
12th Sep 20264011 AMAQI
12th Sep 20263012 PMAQI
12th Sep 2026311 PMAQI
12th Sep 2026362 PMAQI
12th Sep 2026253 PMAQI
12th Sep 2026234 PMAQI
12th Sep 2026315 PMAQI
12th Sep 2026386 PMAQI
12th Sep 2026317 PMAQI
12th Sep 2026348 PMAQI
12th Sep 20262910 PMAQI
12th Sep 20262911 PMAQI
13th Sep 20262912 AMAQI
13th Sep 2026291 AMAQI
13th Sep 2026272 AMAQI
13th Sep 2026273 AMAQI
13th Sep 2026234 AMAQI
13th Sep 2026255 AMAQI
19°C14/24°C
13th Sep 2026346 AMAQI
13th Sep 2026307 AMAQI
13th Sep 2026238 AMAQI
13th Sep 2026259 AMAQI
13th Sep 20263110 AMAQI
13th Sep 20262511 AMAQI
13th Sep 20262112 PMAQI
13th Sep 2026291 PMAQI
13th Sep 2026382 PMAQI
13th Sep 2026383 PMAQI
13th Sep 2026274 PMAQI
13th Sep 2026105 PMAQI
13th Sep 2026276 PMAQI
13th Sep 2026187 PMAQI
13th Sep 2026128 PMAQI
13th Sep 2026259 PMAQI
13th Sep 20263610 PMAQI
13th Sep 20261411 PMAQI
14th Sep 20261912 AMAQI
14th Sep 2026191 AMAQI
14th Sep 2026212 AMAQI
14th Sep 2026213 AMAQI
14th Sep 2026144 AMAQI
14th Sep 2026235 AMAQI
19°C17/21°C
14th Sep 2026256 AMAQI
14th Sep 2026277 AMAQI
14th Sep 2026318 AMAQI
14th Sep 2026279 AMAQI
14th Sep 20262510 AMAQI
14th Sep 20262511 AMAQI
14th Sep 20263312 PMAQI
14th Sep 2026331 PMAQI
14th Sep 2026362 PMAQI
14th Sep 2026333 PMAQI
14th Sep 2026334 PMAQI
14th Sep 2026365 PMAQI
14th Sep 2026296 PMAQI
14th Sep 2026287 PMAQI
14th Sep 2026258 PMAQI
14th Sep 2026179 PMAQI
14th Sep 20262910 PMAQI
14th Sep 20262911 PMAQI
15th Sep 20262112 AMAQI
15th Sep 2026251 AMAQI
15th Sep 2026142 AMAQI
15th Sep 202683 AMAQI
15th Sep 2026204 AMAQI
15th Sep 2026285 AMAQI
20°C17/25°C
15th Sep 2026186 AMAQI
15th Sep 2026167 AMAQI
15th Sep 2026168 AMAQI
15th Sep 2026299 AMAQI
15th Sep 20262510 AMAQI
15th Sep 20263411 AMAQI
15th Sep 20263112 PMAQI
15th Sep 2026251 PMAQI
15th Sep 2026462 PMAQI
15th Sep 2026383 PMAQI
15th Sep 2026304 PMAQI
15th Sep 2026365 PMAQI
15th Sep 2026386 PMAQI
15th Sep 2026307 PMAQI
15th Sep 2026218 PMAQI
15th Sep 2026259 PMAQI
15th Sep 20263110 PMAQI
15th Sep 20262111 PMAQI
16th Sep 20262312 AMAQI
16th Sep 2026271 AMAQI
16th Sep 2026272 AMAQI
16th Sep 2026273 AMAQI
16th Sep 2026234 AMAQI
16th Sep 2026235 AMAQI
19°C16/23°C
16th Sep 2026236 AMAQI
16th Sep 2026327 AMAQI
16th Sep 2026258 AMAQI
16th Sep 2026349 AMAQI
16th Sep 20262510 AMAQI
16th Sep 20262511 AMAQI
16th Sep 20262712 PMAQI
16th Sep 2026231 PMAQI
16th Sep 2026252 PMAQI
16th Sep 2026233 PMAQI
16th Sep 2026264 PMAQI
16th Sep 2026345 PMAQI
16th Sep 2026386 PMAQI
16th Sep 2026277 PMAQI
16th Sep 2026238 PMAQI
16th Sep 2026319 PMAQI
16th Sep 20262710 PMAQI
16th Sep 20262911 PMAQI
17th Sep 20262912 AMAQI
17th Sep 2026291 AMAQI
17th Sep 2026232 AMAQI
17th Sep 2026253 AMAQI
17th Sep 2026214 AMAQI
17th Sep 2026215 AMAQI
16°C13/18°C
17th Sep 2026176 AMAQI
17th Sep 2026177 AMAQI
17th Sep 2026218 AMAQI
17th Sep 2026279 AMAQI
17th Sep 20263410 AMAQI
17th Sep 20263811 AMAQI
17th Sep 20262912 PMAQI
17th Sep 2026231 PMAQI
17th Sep 2026232 PMAQI
17th Sep 2026163 PMAQI
17th Sep 2026124 PMAQI
17th Sep 2026165 PMAQI
17th Sep 2026276 PMAQI
17th Sep 2026277 PMAQI
17th Sep 2026278 PMAQI
17th Sep 2026259 PMAQI
17th Sep 20262910 PMAQI
17th Sep 20263111 PMAQI
18th Sep 20263412 AMAQI
18th Sep 2026271 AMAQI
18th Sep 2026272 AMAQI
18th Sep 2026233 AMAQI
18th Sep 2026254 AMAQI
18th Sep 2026235 AMAQI
16°C13/20°C
18th Sep 2026256 AMAQI
18th Sep 2026297 AMAQI
18th Sep 2026318 AMAQI
18th Sep 2026319 AMAQI
18th Sep 20262910 AMAQI
18th Sep 20263111 AMAQI
18th Sep 20262512 PMAQI
18th Sep 2026231 PMAQI
18th Sep 2026232 PMAQI
18th Sep 2026273 PMAQI
18th Sep 2026334 PMAQI
18th Sep 2026315 PMAQI
18th Sep 2026316 PMAQI
18th Sep 2026427 PMAQI
18th Sep 2026518 PMAQI
18th Sep 2026539 PMAQI
18th Sep 20265410 PMAQI
18th Sep 20265211 PMAQI
19th Sep 20265312 AMAQI
19th Sep 2026491 AMAQI
19th Sep 2026362 AMAQI
19th Sep 2026363 AMAQI
19th Sep 2026384 AMAQI
19th Sep 2026275 AMAQI
15°C11/21°C
19th Sep 2026256 AMAQI
19th Sep 2026297 AMAQI
19th Sep 2026298 AMAQI
19th Sep 2026279 AMAQI
19th Sep 20262510 AMAQI
19th Sep 20261711 AMAQI
19th Sep 20262112 PMAQI
19th Sep 2026291 PMAQI
19th Sep 2026272 PMAQI
19th Sep 2026323 PMAQI
19th Sep 2026384 PMAQI
19th Sep 2026275 PMAQI
19th Sep 2026326 PMAQI
19th Sep 2026297 PMAQI
19th Sep 2026298 PMAQI
19th Sep 2026309 PMAQI
19th Sep 20264010 PMAQI
19th Sep 20262511 PMAQI
20th Sep 20261912 AMAQI
20th Sep 2026121 AMAQI
20th Sep 2026172 AMAQI
20th Sep 2026173 AMAQI
20th Sep 2026214 AMAQI
20th Sep 2026175 AMAQI
18°C16/21°C
20th Sep 2026166 AMAQI
20th Sep 2026197 AMAQI
20th Sep 2026278 AMAQI
20th Sep 2026319 AMAQI
20th Sep 20262910 AMAQI
20th Sep 20262711 AMAQI
20th Sep 20263612 PMAQI
20th Sep 2026211 PMAQI
20th Sep 2026252 PMAQI
20th Sep 2026293 PMAQI
20th Sep 2026294 PMAQI
20th Sep 2026335 PMAQI
20th Sep 2026296 PMAQI
20th Sep 2026337 PMAQI
20th Sep 2026308 PMAQI
20th Sep 2026409 PMAQI
20th Sep 20264210 PMAQI
20th Sep 20265111 PMAQI
21st Sep 20263812 AMAQI
21st Sep 2026441 AMAQI
21st Sep 2026422 AMAQI
21st Sep 2026503 AMAQI
21st Sep 2026664 AMAQI
21st Sep 2026655 AMAQI
17°C14/20°C
21st Sep 2026696 AMAQI
21st Sep 2026657 AMAQI
21st Sep 2026488 AMAQI
21st Sep 2026299 AMAQI
21st Sep 20265210 AMAQI
21st Sep 20265311 AMAQI
21st Sep 20264212 PMAQI
21st Sep 2026381 PMAQI
21st Sep 2026272 PMAQI
21st Sep 2026253 PMAQI
21st Sep 2026274 PMAQI
21st Sep 2026275 PMAQI
21st Sep 2026256 PMAQI
21st Sep 2026387 PMAQI
21st Sep 2026298 PMAQI
21st Sep 2026279 PMAQI
21st Sep 20265310 PMAQI
21st Sep 20265311 PMAQI
22nd Sep 20265512 AMAQI
22nd Sep 2026541 AMAQI
22nd Sep 2026572 AMAQI
22nd Sep 2026583 AMAQI
22nd Sep 2026624 AMAQI
22nd Sep 2026565 AMAQI
18°C13/22°C
22nd Sep 2026556 AMAQI
22nd Sep 2026527 AMAQI
22nd Sep 2026548 AMAQI
22nd Sep 2026629 AMAQI
22nd Sep 20265210 AMAQI
22nd Sep 20265211 AMAQI
22nd Sep 20265512 PMAQI
22nd Sep 2026531 PMAQI
22nd Sep 2026502 PMAQI
22nd Sep 2026253 PMAQI
22nd Sep 2026234 PMAQI
22nd Sep 2026295 PMAQI
22nd Sep 2026246 PMAQI
22nd Sep 2026217 PMAQI
22nd Sep 2026308 PMAQI
22nd Sep 2026429 PMAQI
22nd Sep 20264810 PMAQI
22nd Sep 20264611 PMAQI
23rd Sep 20264212 AMAQI
23rd Sep 2026401 AMAQI
23rd Sep 2026402 AMAQI
23rd Sep 2026383 AMAQI
23rd Sep 2026274 AMAQI
23rd Sep 2026295 AMAQI
20°C17/25°C
23rd Sep 2026296 AMAQI
23rd Sep 2026277 AMAQI
23rd Sep 2026248 AMAQI
23rd Sep 2026259 AMAQI
23rd Sep 20262510 AMAQI
23rd Sep 20264011 AMAQI
23rd Sep 20265112 PMAQI
23rd Sep 2026311 PMAQI
23rd Sep 2026332 PMAQI
23rd Sep 2026333 PMAQI
23rd Sep 2026274 PMAQI
23rd Sep 2026275 PMAQI
23rd Sep 2026336 PMAQI
23rd Sep 2026317 PMAQI
23rd Sep 2026278 PMAQI
23rd Sep 2026279 PMAQI
23rd Sep 20262310 PMAQI
23rd Sep 20262911 PMAQI
24th Sep 20262912 AMAQI
24th Sep 2026251 AMAQI
24th Sep 2026232 AMAQI
24th Sep 2026233 AMAQI
24th Sep 2026214 AMAQI
24th Sep 2026215 AMAQI
19°C16/23°C
24th Sep 2026216 AMAQI
24th Sep 2026257 AMAQI
24th Sep 2026318 AMAQI
24th Sep 2026339 AMAQI
24th Sep 20262510 AMAQI
24th Sep 20262111 AMAQI
24th Sep 20262512 PMAQI
24th Sep 2026251 PMAQI
24th Sep 2026232 PMAQI
24th Sep 2026213 PMAQI
24th Sep 2026254 PMAQI
24th Sep 2026315 PMAQI
24th Sep 2026316 PMAQI
24th Sep 2026317 PMAQI
24th Sep 2026278 PMAQI
24th Sep 2026299 PMAQI
24th Sep 20263610 PMAQI
24th Sep 20263611 PMAQI
25th Sep 20262912 AMAQI
25th Sep 2026231 AMAQI
25th Sep 2026232 AMAQI
25th Sep 2026253 AMAQI
25th Sep 2026234 AMAQI
25th Sep 2026255 AMAQI
17°C14/22°C
25th Sep 2026256 AMAQI
25th Sep 2026257 AMAQI
25th Sep 2026238 AMAQI
25th Sep 2026319 AMAQI
25th Sep 20263110 AMAQI
25th Sep 20263411 AMAQI
25th Sep 20263812 PMAQI
25th Sep 2026421 PMAQI
25th Sep 2026502 PMAQI
25th Sep 2026453 PMAQI
25th Sep 2026404 PMAQI
25th Sep 2026385 PMAQI
25th Sep 2026346 PMAQI
25th Sep 2026297 PMAQI
25th Sep 2026278 PMAQI
25th Sep 2026259 PMAQI
25th Sep 20263010 PMAQI
25th Sep 20263611 PMAQI
26th Sep 20263212 AMAQI
26th Sep 2026251 AMAQI
26th Sep 2026232 AMAQI
26th Sep 2026403 AMAQI
26th Sep 2026384 AMAQI
26th Sep 2026365 AMAQI
18°C14/23°C
26th Sep 2026216 AMAQI
6 AM26th Sep 2026237 AMAQI
26th Sep 2026298 AMAQI
26th Sep 2026339 AMAQI
26th Sep 20263410 AMAQI
26th Sep 20262311 AMAQI
26th Sep 20262512 PMAQI
12 PM26th Sep 2026271 PMAQI
26th Sep 2026292 PMAQI
26th Sep 2026293 PMAQI
26th Sep 2026274 PMAQI
26th Sep 2026315 PMAQI
26th Sep 2026316 PMAQI
26th Sep 2026317 PMAQI
7 PM26th Sep 2026258 PMAQI
26th Sep 2026299 PMAQI
26th Sep 20263810 PMAQI
26th Sep 20265011 PMAQI
12 AM
5 AM
17°C14/20°C
Day time
Avg. Highest Time
12 PM
30AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 PM - 4 PM
26AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 30), while the lowest AQI was between 3 PM to 4 PM (Avg. 26).
Night time
Avg. Highest Time
10 PM - 11 PM
34AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
8 PM
27AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 34), while the lowest AQI was between 8 PM to 8 PM (Avg. 27).
2026 Days Vs Air Quality
Acton, Ealing, United Kingdom
2026
90%
239
10%
26
Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)
Good
239 DaysModerate
26 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 269 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
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)
49AQI (US)
2nd January 2026
23AQI (US)
23AQI (US)
3rd January 2026
28AQI (US)
28AQI (US)
4th January 2026
39AQI (US)
39AQI (US)
5th January 2026
47AQI (US)
47AQI (US)
6th January 2026
56AQI (US)
56AQI (US)
7th January 2026
20AQI (US)
20AQI (US)
8th January 2026
44AQI (US)
44AQI (US)
9th January 2026
25AQI (US)
25AQI (US)
10th January 2026
30AQI (US)
30AQI (US)
11th January 2026
52AQI (US)
52AQI (US)
12th January 2026
20AQI (US)
20AQI (US)
13th January 2026
15AQI (US)
15AQI (US)
14th January 2026
30AQI (US)
30AQI (US)
15th January 2026
16AQI (US)
16AQI (US)
16th January 2026
28AQI (US)
28AQI (US)
17th January 2026
37AQI (US)
37AQI (US)
18th January 2026
68AQI (US)
68AQI (US)
19th January 2026
61AQI (US)
61AQI (US)
20th January 2026
29AQI (US)
29AQI (US)
21st January 2026
17AQI (US)
17AQI (US)
22nd January 2026
37AQI (US)
37AQI (US)
23rd January 2026
51AQI (US)
51AQI (US)
24th January 2026
53AQI (US)
53AQI (US)
25th January 2026
51AQI (US)
51AQI (US)
26th January 2026
72AQI (US)
72AQI (US)
27th January 2026
48AQI (US)
48AQI (US)
28th January 2026
39AQI (US)
39AQI (US)
29th January 2026
51AQI (US)
51AQI (US)
30th January 2026
48AQI (US)
48AQI (US)
31st January 2026
38AQI (US)
38AQI (US)
1st February 2026
45AQI (US)
45AQI (US)
2nd February 2026
50AQI (US)
50AQI (US)
3rd February 2026
62AQI (US)
62AQI (US)
4th February 2026
56AQI (US)
56AQI (US)
5th February 2026
55AQI (US)
55AQI (US)
6th February 2026
49AQI (US)
49AQI (US)
7th February 2026
39AQI (US)
39AQI (US)
8th February 2026
42AQI (US)
42AQI (US)
9th February 2026
46AQI (US)
46AQI (US)
10th February 2026
45AQI (US)
45AQI (US)
11th February 2026
43AQI (US)
43AQI (US)
12th February 2026
42AQI (US)
42AQI (US)
13th February 2026
48AQI (US)
48AQI (US)
14th February 2026
49AQI (US)
49AQI (US)
15th February 2026
42AQI (US)
42AQI (US)
16th February 2026
38AQI (US)
38AQI (US)
17th February 2026
44AQI (US)
44AQI (US)
18th February 2026
41AQI (US)
41AQI (US)
19th February 2026
45AQI (US)
45AQI (US)
20th February 2026
45AQI (US)
45AQI (US)
21st February 2026
37AQI (US)
37AQI (US)
22nd February 2026
38AQI (US)
38AQI (US)
23rd February 2026
50AQI (US)
50AQI (US)
24th February 2026
35AQI (US)
35AQI (US)
25th February 2026
36AQI (US)
36AQI (US)
26th February 2026
32AQI (US)
32AQI (US)
27th February 2026
32AQI (US)
32AQI (US)
28th February 2026
33AQI (US)
33AQI (US)
1st March 2026
35AQI (US)
35AQI (US)
2nd March 2026
42AQI (US)
42AQI (US)
3rd March 2026
49AQI (US)
49AQI (US)
4th March 2026
53AQI (US)
53AQI (US)
5th March 2026
78AQI (US)
78AQI (US)
6th March 2026
57AQI (US)
57AQI (US)
7th March 2026
37AQI (US)
37AQI (US)
8th March 2026
60AQI (US)
60AQI (US)
9th March 2026
71AQI (US)
71AQI (US)
10th March 2026
44AQI (US)
44AQI (US)
11th March 2026
39AQI (US)
39AQI (US)
12th March 2026
42AQI (US)
42AQI (US)
13th March 2026
36AQI (US)
36AQI (US)
14th March 2026
34AQI (US)
34AQI (US)
15th March 2026
34AQI (US)
34AQI (US)
16th March 2026
25AQI (US)
25AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
38AQI (US)
38AQI (US)
20th March 2026
50AQI (US)
50AQI (US)
21st March 2026
29AQI (US)
29AQI (US)
22nd March 2026
36AQI (US)
36AQI (US)
23rd March 2026
58AQI (US)
58AQI (US)
24th March 2026
48AQI (US)
48AQI (US)
25th March 2026
35AQI (US)
35AQI (US)
26th March 2026
24AQI (US)
24AQI (US)
27th March 2026
28AQI (US)
28AQI (US)
28th March 2026
32AQI (US)
32AQI (US)
29th March 2026
26AQI (US)
26AQI (US)
30th March 2026
25AQI (US)
25AQI (US)
31st March 2026
25AQI (US)
25AQI (US)
1st April 2026
28AQI (US)
28AQI (US)
2nd April 2026
26AQI (US)
26AQI (US)
3rd April 2026
25AQI (US)
25AQI (US)
4th April 2026
25AQI (US)
25AQI (US)
5th April 2026
26AQI (US)
26AQI (US)
6th April 2026
24AQI (US)
24AQI (US)
7th April 2026
29AQI (US)
29AQI (US)
8th April 2026
40AQI (US)
40AQI (US)
9th April 2026
30AQI (US)
30AQI (US)
10th April 2026
20AQI (US)
20AQI (US)
11th April 2026
31AQI (US)
31AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
24AQI (US)
24AQI (US)
14th April 2026
24AQI (US)
24AQI (US)
15th April 2026
26AQI (US)
26AQI (US)
16th April 2026
28AQI (US)
28AQI (US)
17th April 2026
18th April 2026
24AQI (US)
24AQI (US)
19th April 2026
28AQI (US)
28AQI (US)
20th April 2026
22AQI (US)
22AQI (US)
21st April 2026
22AQI (US)
22AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
23AQI (US)
24th April 2026
21AQI (US)
21AQI (US)
25th April 2026
39AQI (US)
39AQI (US)
26th April 2026
42AQI (US)
42AQI (US)
27th April 2026
46AQI (US)
46AQI (US)
28th April 2026
31AQI (US)
31AQI (US)
29th April 2026
23AQI (US)
23AQI (US)
30th April 2026
25AQI (US)
25AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
39AQI (US)
39AQI (US)
3rd May 2026
40AQI (US)
40AQI (US)
4th May 2026
53AQI (US)
53AQI (US)
5th May 2026
40AQI (US)
40AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
28AQI (US)
28AQI (US)
8th May 2026
41AQI (US)
41AQI (US)
9th May 2026
10th May 2026
32AQI (US)
32AQI (US)
11th May 2026
25AQI (US)
25AQI (US)
12th May 2026
28AQI (US)
28AQI (US)
13th May 2026
25AQI (US)
25AQI (US)
14th May 2026
22AQI (US)
22AQI (US)
15th May 2026
30AQI (US)
30AQI (US)
16th May 2026
34AQI (US)
34AQI (US)
17th May 2026
37AQI (US)
37AQI (US)
18th May 2026
34AQI (US)
34AQI (US)
19th May 2026
34AQI (US)
34AQI (US)
20th May 2026
32AQI (US)
32AQI (US)
21st May 2026
37AQI (US)
37AQI (US)
22nd May 2026
30AQI (US)
30AQI (US)
23rd May 2026
43AQI (US)
43AQI (US)
24th May 2026
62AQI (US)
62AQI (US)
25th May 2026
39AQI (US)
39AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
43AQI (US)
43AQI (US)
28th May 2026
41AQI (US)
41AQI (US)
29th May 2026
47AQI (US)
47AQI (US)
30th May 2026
28AQI (US)
28AQI (US)
31st May 2026
41AQI (US)
41AQI (US)
1st June 2026
38AQI (US)
38AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
22AQI (US)
22AQI (US)
4th June 2026
16AQI (US)
16AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
26AQI (US)
26AQI (US)
7th June 2026
27AQI (US)
27AQI (US)
8th June 2026
22AQI (US)
22AQI (US)
9th June 2026
20AQI (US)
20AQI (US)
10th June 2026
31AQI (US)
31AQI (US)
11th June 2026
32AQI (US)
32AQI (US)
12th June 2026
16AQI (US)
16AQI (US)
13th June 2026
23AQI (US)
23AQI (US)
14th June 2026
21AQI (US)
21AQI (US)
15th June 2026
25AQI (US)
25AQI (US)
16th June 2026
28AQI (US)
28AQI (US)
17th June 2026
19AQI (US)
19AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
26AQI (US)
26AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
23AQI (US)
23AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
26AQI (US)
26AQI (US)
24th June 2026
50AQI (US)
50AQI (US)
25th June 2026
37AQI (US)
37AQI (US)
26th June 2026
38AQI (US)
38AQI (US)
27th June 2026
31AQI (US)
31AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
22AQI (US)
22AQI (US)
2nd July 2026
23AQI (US)
23AQI (US)
3rd July 2026
25AQI (US)
25AQI (US)
4th July 2026
19AQI (US)
19AQI (US)
5th July 2026
16AQI (US)
16AQI (US)
6th July 2026
17AQI (US)
17AQI (US)
7th July 2026
23AQI (US)
23AQI (US)
8th July 2026
27AQI (US)
27AQI (US)
9th July 2026
33AQI (US)
33AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
25AQI (US)
25AQI (US)
12th July 2026
22AQI (US)
22AQI (US)
13th July 2026
27AQI (US)
27AQI (US)
14th July 2026
28AQI (US)
28AQI (US)
15th July 2026
28AQI (US)
28AQI (US)
16th July 2026
39AQI (US)
39AQI (US)
17th July 2026
47AQI (US)
47AQI (US)
18th July 2026
59AQI (US)
59AQI (US)
19th July 2026
32AQI (US)
32AQI (US)
20th July 2026
31AQI (US)
31AQI (US)
21st July 2026
27AQI (US)
27AQI (US)
22nd July 2026
42AQI (US)
42AQI (US)
23rd July 2026
30AQI (US)
30AQI (US)
24th July 2026
48AQI (US)
48AQI (US)
25th July 2026
44AQI (US)
44AQI (US)
26th July 2026
38AQI (US)
38AQI (US)
27th July 2026
32AQI (US)
32AQI (US)
28th July 2026
37AQI (US)
37AQI (US)
29th July 2026
30AQI (US)
30AQI (US)
30th July 2026
28AQI (US)
28AQI (US)
31st July 2026
26AQI (US)
26AQI (US)
1st August 2026
26AQI (US)
26AQI (US)
2nd August 2026
26AQI (US)
26AQI (US)
3rd August 2026
44AQI (US)
44AQI (US)
4th August 2026
51AQI (US)
51AQI (US)
5th August 2026
27AQI (US)
27AQI (US)
6th August 2026
22AQI (US)
22AQI (US)
7th August 2026
25AQI (US)
25AQI (US)
8th August 2026
24AQI (US)
24AQI (US)
9th August 2026
34AQI (US)
34AQI (US)
10th August 2026
32AQI (US)
32AQI (US)
11th August 2026
23AQI (US)
23AQI (US)
12th August 2026
38AQI (US)
38AQI (US)
13th August 2026
52AQI (US)
52AQI (US)
14th August 2026
34AQI (US)
34AQI (US)
15th August 2026
34AQI (US)
34AQI (US)
16th August 2026
50AQI (US)
50AQI (US)
17th August 2026
49AQI (US)
49AQI (US)
18th August 2026
27AQI (US)
27AQI (US)
19th August 2026
90AQI (US)
90AQI (US)
20th August 2026
26AQI (US)
26AQI (US)
21st August 2026
46AQI (US)
46AQI (US)
22nd August 2026
100AQI (US)
100AQI (US)
23rd August 2026
57AQI (US)
57AQI (US)
24th August 2026
31AQI (US)
31AQI (US)
25th August 2026
24AQI (US)
24AQI (US)
26th August 2026
44AQI (US)
44AQI (US)
27th August 2026
41AQI (US)
41AQI (US)
28th August 2026
30AQI (US)
30AQI (US)
29th August 2026
28AQI (US)
28AQI (US)
30th August 2026
30AQI (US)
30AQI (US)
31st August 2026
23AQI (US)
23AQI (US)
1st September 2026
25AQI (US)
25AQI (US)
2nd September 2026
27AQI (US)
27AQI (US)
3rd September 2026
23AQI (US)
23AQI (US)
4th September 2026
23AQI (US)
23AQI (US)
5th September 2026
29AQI (US)
29AQI (US)
6th September 2026
27AQI (US)
27AQI (US)
7th September 2026
27AQI (US)
27AQI (US)
8th September 2026
27AQI (US)
27AQI (US)
9th September 2026
23AQI (US)
23AQI (US)
10th September 2026
31AQI (US)
31AQI (US)
11th September 2026
30AQI (US)
30AQI (US)
12th September 2026
30AQI (US)
30AQI (US)
13th September 2026
26AQI (US)
26AQI (US)
14th September 2026
27AQI (US)
27AQI (US)
15th September 2026
26AQI (US)
26AQI (US)
16th September 2026
27AQI (US)
27AQI (US)
17th September 2026
24AQI (US)
24AQI (US)
18th September 2026
32AQI (US)
32AQI (US)
19th September 2026
31AQI (US)
31AQI (US)
20th September 2026
27AQI (US)
27AQI (US)
21st September 2026
43AQI (US)
43AQI (US)
22nd September 2026
46AQI (US)
46AQI (US)
23rd September 2026
32AQI (US)
32AQI (US)
24th September 2026
27AQI (US)
27AQI (US)
25th September 2026
31AQI (US)
31AQI (US)
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)
38AQI (US)
29AQI (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
30
1
26
5
25
239
26
Highest AQI (US) recorded in
February44AQI (US)
Lowest AQI (US) recorded in
June26AQI (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
March59AQI (US)
Lowest AQI (US) recorded in
September26AQI (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
March50AQI (US)
Lowest AQI (US) recorded in
December31AQI (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
January49AQI (US)
Lowest AQI (US) recorded in
August26AQI (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
March62AQI (US)
Lowest AQI (US) recorded in
February36AQI (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
March46AQI (US)
Lowest AQI (US) recorded in
August29AQI (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
April55AQI (US)
Lowest AQI (US) recorded in
July23AQI (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)Acton'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).
