Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Harlington, West Drayton, Hillingdon, 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+

August Air Quality Analysis

Harlington, West Drayton, Hillingdon, United Kingdom

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Aug 2024
67AQI
Lowest AQI recorded on
9th Aug 2024
14AQI

Same Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 26 of Good air quality, showing improvement over 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025

Harlington, West Drayton, Hillingdon, United Kingdom

AQI
Day
Night
.

5 AM3rd Aug 2025

9 PM

4 AM4th Aug 2025

Day time
Avg. Highest Time
6AM3rd Aug

34AQI

Avg. Lowest Time
4PM3rd Aug

22AQI

Night time
Avg. Highest Time
9PM3rd Aug

27AQI

Avg. Lowest Time
4AM4th Aug

23AQI

In the last 24 hours,

Harlington's AQI reached its highest point of 34 at 6 AM during the Day, while the lowest point, 22, was recorded at 4 PM during the Day between 3rd Aug and 4th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Harlington, West Drayton, Hillingdon, United Kingdom

JulAug
05th - 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 - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025185 AMAQI
5th Jul 2025186 AMAQI
5th Jul 2025187 AMAQI
5th Jul 2025168 AMAQI
5th Jul 2025189 AMAQI
5th Jul 20251610 AMAQI
5th Jul 20251811 AMAQI
5th Jul 20251812 PMAQI
5th Jul 2025191 PMAQI
5th Jul 2025192 PMAQI
5th Jul 2025203 PMAQI
5th Jul 2025204 PMAQI
5th Jul 2025205 PMAQI
5th Jul 2025206 PMAQI
5th Jul 2025197 PMAQI
5th Jul 2025208 PMAQI
5th Jul 2025199 PMAQI
5th Jul 20252010 PMAQI
5th Jul 20252011 PMAQI
6th Jul 20252012 AMAQI
6th Jul 2025191 AMAQI
6th Jul 2025192 AMAQI
6th Jul 2025193 AMAQI
6th Jul 2025204 AMAQI

17°C15/20°C

6th Jul 2025235 AMAQI
6th Jul 2025216 AMAQI
6th Jul 2025177 AMAQI
6th Jul 2025168 AMAQI
6th Jul 2025169 AMAQI
6th Jul 20251710 AMAQI
6th Jul 20251611 AMAQI
6th Jul 20251612 PMAQI
6th Jul 2025181 PMAQI
6th Jul 2025182 PMAQI
6th Jul 2025183 PMAQI
6th Jul 2025184 PMAQI
6th Jul 2025185 PMAQI
6th Jul 2025196 PMAQI
6th Jul 2025187 PMAQI
6th Jul 2025188 PMAQI
6th Jul 2025189 PMAQI
6th Jul 20251810 PMAQI
6th Jul 20251811 PMAQI
7th Jul 20251812 AMAQI
7th Jul 2025171 AMAQI
7th Jul 2025162 AMAQI
7th Jul 2025143 AMAQI
7th Jul 2025164 AMAQI

18°C15/21°C

7th Jul 2025175 AMAQI
7th Jul 2025186 AMAQI
7th Jul 2025177 AMAQI
7th Jul 2025178 AMAQI
7th Jul 2025179 AMAQI
7th Jul 20251710 AMAQI
7th Jul 20251811 AMAQI
7th Jul 20251712 PMAQI
7th Jul 2025171 PMAQI
7th Jul 2025172 PMAQI
7th Jul 2025173 PMAQI
7th Jul 2025174 PMAQI
7th Jul 2025165 PMAQI
7th Jul 2025176 PMAQI
7th Jul 2025187 PMAQI
7th Jul 2025188 PMAQI
7th Jul 2025189 PMAQI
7th Jul 20251810 PMAQI
7th Jul 20251811 PMAQI
8th Jul 20251812 AMAQI
8th Jul 2025181 AMAQI
8th Jul 2025192 AMAQI
8th Jul 2025213 AMAQI
8th Jul 2025244 AMAQI

17°C12/22°C

8th Jul 2025205 AMAQI
8th Jul 2025206 AMAQI
8th Jul 2025217 AMAQI
8th Jul 2025188 AMAQI
8th Jul 2025189 AMAQI
8th Jul 20252010 AMAQI
8th Jul 20252411 AMAQI
8th Jul 20252812 PMAQI
8th Jul 2025231 PMAQI
8th Jul 2025232 PMAQI
8th Jul 2025223 PMAQI
8th Jul 2025224 PMAQI
8th Jul 2025225 PMAQI
8th Jul 2025216 PMAQI
8th Jul 2025227 PMAQI
8th Jul 2025218 PMAQI
8th Jul 2025219 PMAQI
8th Jul 20252010 PMAQI
8th Jul 20252111 PMAQI
9th Jul 20252012 AMAQI
9th Jul 2025211 AMAQI
9th Jul 2025212 AMAQI
9th Jul 2025213 AMAQI
9th Jul 2025224 AMAQI

18°C11/24°C

9th Jul 2025235 AMAQI
9th Jul 2025246 AMAQI
9th Jul 2025257 AMAQI
9th Jul 2025398 AMAQI
9th Jul 2025279 AMAQI
9th Jul 20252210 AMAQI
9th Jul 20252211 AMAQI
9th Jul 20252012 PMAQI
9th Jul 2025201 PMAQI
9th Jul 2025192 PMAQI
9th Jul 2025193 PMAQI
9th Jul 2025184 PMAQI
9th Jul 2025185 PMAQI
9th Jul 2025186 PMAQI
9th Jul 2025187 PMAQI
9th Jul 2025208 PMAQI
9th Jul 2025229 PMAQI
9th Jul 20252210 PMAQI
9th Jul 20252211 PMAQI
10th Jul 20252212 AMAQI
10th Jul 2025231 AMAQI
10th Jul 2025252 AMAQI
10th Jul 2025203 AMAQI
10th Jul 2025214 AMAQI

20°C13/25°C

10th Jul 2025285 AMAQI
10th Jul 2025206 AMAQI
10th Jul 2025227 AMAQI
10th Jul 2025248 AMAQI
10th Jul 2025209 AMAQI
10th Jul 20251910 AMAQI
10th Jul 20252011 AMAQI
10th Jul 20252012 PMAQI
10th Jul 2025221 PMAQI
10th Jul 2025212 PMAQI
10th Jul 2025203 PMAQI
10th Jul 2025194 PMAQI
10th Jul 2025195 PMAQI
10th Jul 2025206 PMAQI
10th Jul 2025207 PMAQI
10th Jul 2025218 PMAQI
10th Jul 2025219 PMAQI
10th Jul 20252110 PMAQI
10th Jul 20252111 PMAQI
11th Jul 20252112 AMAQI
11th Jul 2025221 AMAQI
11th Jul 2025222 AMAQI
11th Jul 2025223 AMAQI
11th Jul 2025224 AMAQI

24°C18/30°C

11th Jul 2025245 AMAQI
11th Jul 2025256 AMAQI
11th Jul 2025257 AMAQI
11th Jul 2025268 AMAQI
11th Jul 2025259 AMAQI
11th Jul 20252410 AMAQI
11th Jul 20252411 AMAQI
11th Jul 20252412 PMAQI
11th Jul 2025231 PMAQI
11th Jul 2025232 PMAQI
11th Jul 2025243 PMAQI
11th Jul 2025254 PMAQI
11th Jul 2025265 PMAQI
11th Jul 2025286 PMAQI
11th Jul 2025287 PMAQI
11th Jul 2025288 PMAQI
11th Jul 2025239 PMAQI
11th Jul 20252310 PMAQI
11th Jul 20252311 PMAQI
12th Jul 20252312 AMAQI
12th Jul 2025241 AMAQI
12th Jul 2025252 AMAQI
12th Jul 2025283 AMAQI
12th Jul 2025304 AMAQI

25°C18/32°C

12th Jul 2025315 AMAQI
12th Jul 2025296 AMAQI
12th Jul 2025257 AMAQI
12th Jul 2025298 AMAQI
12th Jul 2025299 AMAQI
12th Jul 20252610 AMAQI
12th Jul 20252411 AMAQI
12th Jul 20252212 PMAQI
12th Jul 2025241 PMAQI
12th Jul 2025232 PMAQI
12th Jul 2025223 PMAQI
12th Jul 2025254 PMAQI
12th Jul 2025265 PMAQI
12th Jul 2025266 PMAQI
12th Jul 2025257 PMAQI
12th Jul 2025248 PMAQI
12th Jul 2025259 PMAQI
12th Jul 20252510 PMAQI
12th Jul 20252511 PMAQI
13th Jul 20252612 AMAQI
13th Jul 2025251 AMAQI
13th Jul 2025272 AMAQI
13th Jul 2025283 AMAQI
13th Jul 2025324 AMAQI

24°C18/30°C

13th Jul 2025305 AMAQI
13th Jul 2025276 AMAQI
13th Jul 2025227 AMAQI
13th Jul 2025218 AMAQI
13th Jul 2025209 AMAQI
13th Jul 20252410 AMAQI
13th Jul 20251911 AMAQI
13th Jul 20252312 PMAQI
13th Jul 2025261 PMAQI
13th Jul 2025272 PMAQI
13th Jul 2025283 PMAQI
13th Jul 2025304 PMAQI
13th Jul 2025305 PMAQI
13th Jul 2025316 PMAQI
13th Jul 2025287 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025279 PMAQI
13th Jul 20252610 PMAQI
13th Jul 20252611 PMAQI
14th Jul 20252612 AMAQI
14th Jul 2025261 AMAQI
14th Jul 2025282 AMAQI
14th Jul 2025323 AMAQI
14th Jul 2025324 AMAQI

23°C16/30°C

14th Jul 2025315 AMAQI
14th Jul 2025356 AMAQI
14th Jul 2025397 AMAQI
14th Jul 2025358 AMAQI
14th Jul 2025359 AMAQI
14th Jul 20253210 AMAQI
14th Jul 20253111 AMAQI
14th Jul 20252812 PMAQI
14th Jul 2025271 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025303 PMAQI
14th Jul 2025304 PMAQI
14th Jul 2025315 PMAQI
14th Jul 2025296 PMAQI
14th Jul 2025307 PMAQI
14th Jul 2025288 PMAQI
14th Jul 2025329 PMAQI
14th Jul 20253110 PMAQI
14th Jul 20253111 PMAQI
15th Jul 20253212 AMAQI
15th Jul 2025301 AMAQI
15th Jul 2025272 AMAQI
15th Jul 2025273 AMAQI
15th Jul 2025264 AMAQI

21°C15/26°C

15th Jul 2025225 AMAQI
15th Jul 2025216 AMAQI
15th Jul 2025227 AMAQI
15th Jul 2025258 AMAQI
15th Jul 2025239 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252411 AMAQI
15th Jul 20252312 PMAQI
15th Jul 2025241 PMAQI
15th Jul 2025242 PMAQI
15th Jul 2025243 PMAQI
15th Jul 2025244 PMAQI
15th Jul 2025265 PMAQI
15th Jul 2025266 PMAQI
15th Jul 2025267 PMAQI
15th Jul 2025258 PMAQI
15th Jul 2025269 PMAQI
15th Jul 20252410 PMAQI
15th Jul 20252611 PMAQI
16th Jul 20252512 AMAQI
16th Jul 2025271 AMAQI
16th Jul 2025262 AMAQI
16th Jul 2025233 AMAQI
16th Jul 2025214 AMAQI

18°C13/23°C

16th Jul 2025205 AMAQI
16th Jul 2025216 AMAQI
16th Jul 2025257 AMAQI
16th Jul 2025278 AMAQI
16th Jul 2025269 AMAQI
16th Jul 20252410 AMAQI
16th Jul 20252211 AMAQI
16th Jul 20252412 PMAQI
16th Jul 2025221 PMAQI
16th Jul 2025222 PMAQI
16th Jul 2025223 PMAQI
16th Jul 2025214 PMAQI
16th Jul 2025235 PMAQI
16th Jul 2025236 PMAQI
16th Jul 2025237 PMAQI
16th Jul 2025248 PMAQI
16th Jul 2025239 PMAQI
16th Jul 20252410 PMAQI
16th Jul 20252411 PMAQI
17th Jul 20252312 AMAQI
17th Jul 2025241 AMAQI
17th Jul 2025232 AMAQI
17th Jul 2025243 AMAQI
17th Jul 2025224 AMAQI

21°C16/27°C

17th Jul 2025265 AMAQI
17th Jul 2025266 AMAQI
17th Jul 2025257 AMAQI
17th Jul 2025218 AMAQI
17th Jul 2025209 AMAQI
17th Jul 20251810 AMAQI
17th Jul 20251811 AMAQI
17th Jul 20251912 PMAQI
17th Jul 2025221 PMAQI
17th Jul 2025212 PMAQI
17th Jul 2025203 PMAQI
17th Jul 2025204 PMAQI
17th Jul 2025215 PMAQI
17th Jul 2025206 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025238 PMAQI
17th Jul 2025229 PMAQI
17th Jul 20252210 PMAQI
17th Jul 20252311 PMAQI
18th Jul 20252212 AMAQI
18th Jul 2025221 AMAQI
18th Jul 2025222 AMAQI
18th Jul 2025183 AMAQI
18th Jul 2025184 AMAQI

21°C18/26°C

18th Jul 2025195 AMAQI
18th Jul 2025226 AMAQI
18th Jul 2025227 AMAQI
18th Jul 2025208 AMAQI
18th Jul 2025199 AMAQI
18th Jul 20251710 AMAQI
18th Jul 20251811 AMAQI
18th Jul 20251812 PMAQI
18th Jul 2025201 PMAQI
18th Jul 2025212 PMAQI
18th Jul 2025223 PMAQI
18th Jul 2025224 PMAQI
18th Jul 2025225 PMAQI
18th Jul 2025216 PMAQI
18th Jul 2025297 PMAQI
18th Jul 2025248 PMAQI
18th Jul 2025229 PMAQI
18th Jul 20252010 PMAQI
18th Jul 20252111 PMAQI
19th Jul 20252012 AMAQI
19th Jul 2025211 AMAQI
19th Jul 2025212 AMAQI
19th Jul 2025203 AMAQI
19th Jul 2025204 AMAQI

24°C18/30°C

19th Jul 2025215 AMAQI
19th Jul 2025216 AMAQI
19th Jul 2025237 AMAQI
19th Jul 2025228 AMAQI
19th Jul 2025209 AMAQI
19th Jul 20251910 AMAQI
19th Jul 20251911 AMAQI
19th Jul 20252312 PMAQI
19th Jul 2025241 PMAQI
19th Jul 2025262 PMAQI
19th Jul 2025233 PMAQI
19th Jul 2025224 PMAQI
19th Jul 2025205 PMAQI
19th Jul 2025346 PMAQI
19th Jul 2025227 PMAQI
19th Jul 2025228 PMAQI
19th Jul 2025229 PMAQI
19th Jul 20252210 PMAQI
19th Jul 20252211 PMAQI
20th Jul 20252212 AMAQI
20th Jul 2025221 AMAQI
20th Jul 2025232 AMAQI
20th Jul 2025223 AMAQI
20th Jul 2025224 AMAQI

18°C17/22°C

20th Jul 2025235 AMAQI
20th Jul 2025236 AMAQI
20th Jul 2025207 AMAQI
20th Jul 2025198 AMAQI
20th Jul 2025169 AMAQI
20th Jul 20251610 AMAQI
20th Jul 20251911 AMAQI
20th Jul 20252012 PMAQI
20th Jul 2025211 PMAQI
20th Jul 2025202 PMAQI
20th Jul 2025203 PMAQI
20th Jul 2025204 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025207 PMAQI
20th Jul 2025188 PMAQI
20th Jul 2025209 PMAQI
20th Jul 20251910 PMAQI
20th Jul 20252011 PMAQI
21st Jul 20252012 AMAQI
21st Jul 2025211 AMAQI
21st Jul 2025202 AMAQI
21st Jul 2025193 AMAQI
21st Jul 2025194 AMAQI

18°C16/23°C

21st Jul 2025215 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025177 AMAQI
21st Jul 2025188 AMAQI
21st Jul 2025189 AMAQI
21st Jul 20251810 AMAQI
21st Jul 20251711 AMAQI
21st Jul 20251812 PMAQI
21st Jul 2025191 PMAQI
21st Jul 2025202 PMAQI
21st Jul 2025193 PMAQI
21st Jul 2025194 PMAQI
21st Jul 2025185 PMAQI
21st Jul 2025186 PMAQI
21st Jul 2025197 PMAQI
21st Jul 2025198 PMAQI
21st Jul 2025199 PMAQI
21st Jul 20252010 PMAQI
21st Jul 20251911 PMAQI
22nd Jul 20251812 AMAQI
22nd Jul 2025191 AMAQI
22nd Jul 2025182 AMAQI
22nd Jul 2025163 AMAQI
22nd Jul 2025164 AMAQI

18°C14/23°C

22nd Jul 2025175 AMAQI
22nd Jul 2025186 AMAQI
22nd Jul 2025167 AMAQI
22nd Jul 2025158 AMAQI
22nd Jul 2025159 AMAQI
22nd Jul 20251510 AMAQI
22nd Jul 20251411 AMAQI
22nd Jul 20251412 PMAQI
22nd Jul 2025151 PMAQI
22nd Jul 2025162 PMAQI
22nd Jul 2025163 PMAQI
22nd Jul 2025164 PMAQI
22nd Jul 2025165 PMAQI
22nd Jul 2025166 PMAQI
22nd Jul 2025167 PMAQI
22nd Jul 2025178 PMAQI
22nd Jul 2025179 PMAQI
22nd Jul 20251710 PMAQI
22nd Jul 20251711 PMAQI
23rd Jul 20251812 AMAQI
23rd Jul 2025181 AMAQI
23rd Jul 2025182 AMAQI
23rd Jul 2025173 AMAQI
23rd Jul 2025164 AMAQI

19°C14/24°C

23rd Jul 2025185 AMAQI
23rd Jul 2025186 AMAQI
23rd Jul 2025187 AMAQI
23rd Jul 2025158 AMAQI
23rd Jul 2025169 AMAQI
23rd Jul 20251810 AMAQI
23rd Jul 20252211 AMAQI
23rd Jul 20251712 PMAQI
23rd Jul 2025201 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025213 PMAQI
23rd Jul 2025254 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025287 PMAQI
23rd Jul 2025328 PMAQI
23rd Jul 2025229 PMAQI
23rd Jul 20252310 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252212 AMAQI
24th Jul 2025231 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025473 AMAQI
24th Jul 2025524 AMAQI

19°C15/24°C

24th Jul 2025505 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025467 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025449 AMAQI
24th Jul 20255210 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20255112 PMAQI
24th Jul 2025481 PMAQI
24th Jul 2025422 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025355 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025448 PMAQI
24th Jul 2025439 PMAQI
24th Jul 20254410 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254212 AMAQI
25th Jul 2025411 AMAQI
25th Jul 2025422 AMAQI
25th Jul 2025383 AMAQI
25th Jul 2025364 AMAQI

18°C15/21°C

25th Jul 2025335 AMAQI
25th Jul 2025366 AMAQI
25th Jul 2025307 AMAQI
25th Jul 2025288 AMAQI
25th Jul 2025269 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20253412 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025342 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025374 PMAQI
25th Jul 2025395 PMAQI
25th Jul 2025436 PMAQI
25th Jul 2025427 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20253711 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025411 AMAQI
26th Jul 2025392 AMAQI
26th Jul 2025413 AMAQI
26th Jul 2025434 AMAQI

21°C15/26°C

26th Jul 2025435 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025407 AMAQI
26th Jul 2025418 AMAQI
26th Jul 2025369 AMAQI
26th Jul 20253210 AMAQI
26th Jul 20254011 AMAQI
26th Jul 20253912 PMAQI
26th Jul 2025341 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025304 PMAQI
26th Jul 2025365 PMAQI
26th Jul 2025356 PMAQI
26th Jul 2025337 PMAQI
26th Jul 2025328 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20253810 PMAQI
26th Jul 20253711 PMAQI
27th Jul 20253812 AMAQI
27th Jul 2025371 AMAQI
27th Jul 2025352 AMAQI
27th Jul 2025223 AMAQI
27th Jul 2025174 AMAQI

19°C15/23°C

27th Jul 2025165 AMAQI
27th Jul 2025166 AMAQI
27th Jul 2025167 AMAQI
27th Jul 2025178 AMAQI
27th Jul 2025189 AMAQI
27th Jul 20251810 AMAQI
27th Jul 20252111 AMAQI
27th Jul 20252512 PMAQI
27th Jul 2025261 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025243 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025246 PMAQI
27th Jul 2025247 PMAQI
27th Jul 2025248 PMAQI
27th Jul 2025259 PMAQI
27th Jul 20252510 PMAQI
27th Jul 20252511 PMAQI
28th Jul 20252512 AMAQI
28th Jul 2025261 AMAQI
28th Jul 2025272 AMAQI
28th Jul 2025283 AMAQI
28th Jul 2025304 AMAQI

18°C15/22°C

28th Jul 2025285 AMAQI
28th Jul 2025266 AMAQI
28th Jul 2025267 AMAQI
28th Jul 2025308 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20252611 AMAQI
28th Jul 20252712 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025263 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025255 PMAQI
28th Jul 2025266 PMAQI
28th Jul 2025277 PMAQI
28th Jul 2025258 PMAQI
28th Jul 2025269 PMAQI
28th Jul 20252710 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252712 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025262 AMAQI
29th Jul 2025243 AMAQI
29th Jul 2025234 AMAQI

19°C13/23°C

29th Jul 2025235 AMAQI
29th Jul 2025236 AMAQI
29th Jul 2025267 AMAQI
29th Jul 2025278 AMAQI
29th Jul 2025229 AMAQI
29th Jul 20252310 AMAQI
29th Jul 20252311 AMAQI
29th Jul 20251612 PMAQI
29th Jul 2025211 PMAQI
29th Jul 2025272 PMAQI
29th Jul 2025233 PMAQI
29th Jul 2025244 PMAQI
29th Jul 2025245 PMAQI
29th Jul 2025226 PMAQI
29th Jul 2025257 PMAQI
29th Jul 2025268 PMAQI
29th Jul 2025319 PMAQI
29th Jul 20252410 PMAQI
29th Jul 20252411 PMAQI
30th Jul 20252612 AMAQI
30th Jul 2025251 AMAQI
30th Jul 2025272 AMAQI
30th Jul 2025313 AMAQI
30th Jul 2025344 AMAQI

17°C14/21°C

30th Jul 2025355 AMAQI
30th Jul 2025356 AMAQI
30th Jul 2025347 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025269 AMAQI
30th Jul 20252910 AMAQI
30th Jul 20253011 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025261 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025243 PMAQI
30th Jul 2025244 PMAQI
30th Jul 2025245 PMAQI
30th Jul 2025266 PMAQI
30th Jul 2025267 PMAQI
30th Jul 2025278 PMAQI
30th Jul 2025279 PMAQI
30th Jul 20252710 PMAQI
30th Jul 20252711 PMAQI
31st Jul 20252712 AMAQI
31st Jul 2025271 AMAQI
31st Jul 2025272 AMAQI
31st Jul 2025223 AMAQI
31st Jul 2025214 AMAQI

19°C14/25°C

31st Jul 2025225 AMAQI
31st Jul 2025226 AMAQI
31st Jul 2025197 AMAQI
31st Jul 2025218 AMAQI
31st Jul 2025229 AMAQI
31st Jul 20251810 AMAQI
31st Jul 20251911 AMAQI
31st Jul 20251812 PMAQI
31st Jul 2025211 PMAQI
31st Jul 2025222 PMAQI
31st Jul 2025233 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025245 PMAQI
31st Jul 2025266 PMAQI
31st Jul 2025257 PMAQI
31st Jul 2025248 PMAQI
31st Jul 2025249 PMAQI
31st Jul 20252510 PMAQI
31st Jul 20252511 PMAQI
1st Aug 20252312 AMAQI
1st Aug 2025211 AMAQI
1st Aug 2025232 AMAQI
1st Aug 2025253 AMAQI
1st Aug 2025204 AMAQI

19°C15/25°C

1st Aug 2025185 AMAQI
1st Aug 2025216 AMAQI
1st Aug 2025207 AMAQI
1st Aug 2025198 AMAQI
1st Aug 2025219 AMAQI
1st Aug 20252310 AMAQI
1st Aug 20252011 AMAQI
1st Aug 20252312 PMAQI
1st Aug 2025241 PMAQI
1st Aug 2025242 PMAQI
1st Aug 2025233 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025185 PMAQI
1st Aug 2025226 PMAQI
1st Aug 2025237 PMAQI
1st Aug 2025228 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252312 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025212 AMAQI
2nd Aug 2025223 AMAQI
2nd Aug 2025224 AMAQI

17°C12/21°C

2nd Aug 2025185 AMAQI
2nd Aug 2025196 AMAQI
2nd Aug 2025187 AMAQI
2nd Aug 2025188 AMAQI
2nd Aug 2025189 AMAQI
2nd Aug 20251810 AMAQI
2nd Aug 20251611 AMAQI
2nd Aug 20252112 PMAQI
2nd Aug 2025221 PMAQI
2nd Aug 2025222 PMAQI
2nd Aug 2025223 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025225 PMAQI
2nd Aug 2025216 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025208 PMAQI
2nd Aug 2025229 PMAQI
2nd Aug 20252210 PMAQI
2nd Aug 20252211 PMAQI
3rd Aug 20252112 AMAQI
3rd Aug 2025201 AMAQI
3rd Aug 2025252 AMAQI
3rd Aug 2025283 AMAQI
3rd Aug 2025284 AMAQI

17°C13/23°C

3rd Aug 2025325 AMAQI
3rd Aug 2025346 AMAQI
3rd Aug 2025267 AMAQI
3rd Aug 2025348 AMAQI
3rd Aug 2025289 AMAQI
3rd Aug 20253110 AMAQI
3rd Aug 20252911 AMAQI
3rd Aug 20252612 PMAQI
3rd Aug 2025231 PMAQI
3rd Aug 2025232 PMAQI
3rd Aug 2025223 PMAQI
3rd Aug 2025224 PMAQI
3rd Aug 2025245 PMAQI
3rd Aug 2025236 PMAQI
3rd Aug 2025237 PMAQI
3rd Aug 2025268 PMAQI
3rd Aug 2025279 PMAQI
3rd Aug 20252610 PMAQI
3rd Aug 20252711 PMAQI
4th Aug 20252612 AMAQI
4th Aug 2025261 AMAQI
4th Aug 2025252 AMAQI
4th Aug 2025243 AMAQI
4th Aug 2025234 AMAQI

19°C13/24°C

4th Aug 2025225 AMAQI
5 AM
4th Aug 2025266 AMAQI
4th Aug 2025287 AMAQI
4th Aug 2025268 AMAQI
4th Aug 2025249 AMAQI
4th Aug 20252710 AMAQI
4th Aug 20252311 AMAQI
4th Aug 20252312 PMAQI
4th Aug 2025231 PMAQI
1 PM
4th Aug 2025232 PMAQI
4th Aug 2025223 PMAQI
4th Aug 2025224 PMAQI
4th Aug 2025225 PMAQI
4th Aug 2025226 PMAQI
4th Aug 2025257 PMAQI
4th Aug 2025238 PMAQI
4th Aug 2025249 PMAQI
9 PM
4th Aug 20252410 PMAQI
1 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 9 PM

24AQI

17 hours / Day
510 hours / Month
Avg. Lowest Time
5 AM - 9 PM

24AQI

17 hours / Day
510 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 PM (Avg. 24), while the lowest AQI was between 5 AM to 9 PM (Avg. 24).
Night time
Avg. Highest Time
12 AM - 11 PM

25AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM

25AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 25), while the lowest AQI was between 12 AM to 11 PM (Avg. 25).

2025 Days Vs Air Quality

Harlington, West Drayton, Hillingdon, United Kingdom

2025

76%

163

24%

51

0.4%

1

Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)

Good
163 Days
Moderate
51 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 76%

Health Risk Level:

Low

In 2025, 76% of 216 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Harlington, West Drayton, Hillingdon, United Kingdom

AQI levels in 2025

AQI
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.

1st January 2025
27AQI
2nd January 2025
28AQI
3rd January 2025
37AQI
4th January 2025
50AQI
5th January 2025
26AQI
6th January 2025
22AQI
7th January 2025
21AQI
8th January 2025
34AQI
9th January 2025
44AQI
10th January 2025
58AQI
11th January 2025
80AQI
12th January 2025
98AQI
13th January 2025
53AQI
14th January 2025
48AQI
15th January 2025
48AQI
16th January 2025
42AQI
17th January 2025
54AQI
18th January 2025
73AQI
19th January 2025
66AQI
20th January 2025
62AQI
21st January 2025
62AQI
22nd January 2025
73AQI
23rd January 2025
47AQI
24th January 2025
41AQI
25th January 2025
35AQI
26th January 2025
33AQI
27th January 2025
31AQI
28th January 2025
26AQI
29th January 2025
27AQI
30th January 2025
28AQI
31st January 2025
30AQI
1st February 2025
31AQI
2nd February 2025
49AQI
3rd February 2025
53AQI
4th February 2025
31AQI
5th February 2025
42AQI
6th February 2025
47AQI
7th February 2025
45AQI
8th February 2025
64AQI
9th February 2025
63AQI
10th February 2025
93AQI
11th February 2025
79AQI
12th February 2025
70AQI
13th February 2025
73AQI
14th February 2025
66AQI
15th February 2025
81AQI
16th February 2025
69AQI
17th February 2025
66AQI
18th February 2025
77AQI
19th February 2025
86AQI
20th February 2025
41AQI
21st February 2025
33AQI
22nd February 2025
35AQI
23rd February 2025
31AQI
24th February 2025
24AQI
25th February 2025
30AQI
26th February 2025
28AQI
27th February 2025
27AQI
28th February 2025
48AQI
1st March 2025
52AQI
2nd March 2025
59AQI
3rd March 2025
73AQI
4th March 2025
79AQI
5th March 2025
96AQI
6th March 2025
83AQI
7th March 2025
56AQI
8th March 2025
62AQI
9th March 2025
87AQI
10th March 2025
133AQI
11th March 2025
62AQI
12th March 2025
36AQI
13th March 2025
29AQI
14th March 2025
38AQI
15th March 2025
27AQI
16th March 2025
25AQI
17th March 2025
29AQI
18th March 2025
48AQI
19th March 2025
66AQI
20th March 2025
55AQI
21st March 2025
68AQI
22nd March 2025
51AQI
23rd March 2025
80AQI
24th March 2025
89AQI
25th March 2025
70AQI
26th March 2025
48AQI
27th March 2025
46AQI
28th March 2025
27AQI
29th March 2025
26AQI
30th March 2025
32AQI
31st March 2025
35AQI
1st April 2025
32AQI
2nd April 2025
44AQI
3rd April 2025
62AQI
4th April 2025
74AQI
5th April 2025
45AQI
6th April 2025
26AQI
7th April 2025
33AQI
8th April 2025
53AQI
9th April 2025
37AQI
10th April 2025
39AQI
11th April 2025
63AQI
12th April 2025
60AQI
13th April 2025
42AQI
14th April 2025
25AQI
15th April 2025
40AQI
16th April 2025
21AQI
17th April 2025
25AQI
18th April 2025
31AQI
19th April 2025
40AQI
20th April 2025
29AQI
21st April 2025
44AQI
22nd April 2025
24AQI
23rd April 2025
17AQI
24th April 2025
47AQI
25th April 2025
43AQI
26th April 2025
55AQI
27th April 2025
65AQI
28th April 2025
44AQI
29th April 2025
56AQI
30th April 2025
56AQI
1st May 2025
62AQI
2nd May 2025
55AQI
3rd May 2025
45AQI
4th May 2025
22AQI
5th May 2025
19AQI
6th May 2025
21AQI
7th May 2025
22AQI
8th May 2025
27AQI
9th May 2025
29AQI
10th May 2025
28AQI
11th May 2025
32AQI
12th May 2025
27AQI
13th May 2025
32AQI
14th May 2025
34AQI
15th May 2025
34AQI
16th May 2025
37AQI
17th May 2025
32AQI
18th May 2025
38AQI
19th May 2025
37AQI
20th May 2025
27AQI
21st May 2025
32AQI
22nd May 2025
34AQI
23rd May 2025
28AQI
24th May 2025
25AQI
25th May 2025
18AQI
26th May 2025
21AQI
27th May 2025
20AQI
28th May 2025
16AQI
29th May 2025
19AQI
30th May 2025
20AQI
31st May 2025
22AQI
1st June 2025
21AQI
2nd June 2025
21AQI
3rd June 2025
21AQI
4th June 2025
20AQI
5th June 2025
17AQI
6th June 2025
15AQI
7th June 2025
14AQI
8th June 2025
18AQI
9th June 2025
50AQI
10th June 2025
41AQI
11th June 2025
34AQI
12th June 2025
42AQI
13th June 2025
36AQI
14th June 2025
36AQI
15th June 2025
26AQI
16th June 2025
25AQI
17th June 2025
28AQI
18th June 2025
32AQI
19th June 2025
39AQI
20th June 2025
49AQI
21st June 2025
40AQI
22nd June 2025
37AQI
23rd June 2025
22AQI
24th June 2025
20AQI
25th June 2025
17AQI
26th June 2025
17AQI
27th June 2025
19AQI
28th June 2025
15AQI
29th June 2025
17AQI
30th June 2025
21AQI
1st July 2025
33AQI
2nd July 2025
32AQI
3rd July 2025
23AQI
4th July 2025
21AQI
5th July 2025
20AQI
6th July 2025
18AQI
7th July 2025
17AQI
8th July 2025
21AQI
9th July 2025
22AQI
10th July 2025
21AQI
11th July 2025
24AQI
12th July 2025
26AQI
13th July 2025
27AQI
14th July 2025
31AQI
15th July 2025
25AQI
16th July 2025
23AQI
17th July 2025
22AQI
18th July 2025
21AQI
19th July 2025
22AQI
20th July 2025
20AQI
21st July 2025
19AQI
22nd July 2025
16AQI
23rd July 2025
21AQI
24th July 2025
43AQI
25th July 2025
36AQI
26th July 2025
37AQI
27th July 2025
24AQI
28th July 2025
27AQI
29th July 2025
24AQI
30th July 2025
28AQI
31st July 2025
23AQI
1st August 2025
22AQI
2nd August 2025
20AQI
3rd August 2025
26AQI

45AQI

53AQI

57AQI

42AQI

30AQI

27AQI

25AQI

23AQI

No. of days

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

202539AQI

21
10
15
13
13
17
1
21
9
29
2
30
31
3
163
51
1

Highest AQI recorded in

March

57AQI

Lowest AQI recorded in

August

23AQI

202430AQI

28
2
29
25
5
30
24
7
29
1
30
1
30
1
25
5
30
1
21
9
31
332
32

Highest AQI recorded in

November

44AQI

Lowest AQI recorded in

April

24AQI

202332AQI

26
3
2
19
8
1
31
25
5
30
1
24
6
31
30
1
23
7
30
1
27
2
31
327
34
3

Highest AQI recorded in

February

43AQI

Lowest AQI recorded in

August

23AQI

202235AQI

21
10
21
17
14
26
4
27
4
30
21
2
1
27
1
31
27
3
18
13
267
51

Highest AQI recorded in

March

53AQI

Lowest AQI recorded in

September

28AQI

202134AQI

25
5
24
4
21
8
2
25
5
29
2
28
2
25
6
31
24
6
29
2
27
3
29
2
317
45
2

Highest AQI recorded in

March

46AQI

Lowest AQI recorded in

August

24AQI

202034AQI

7
6
14
6
1
18
27
3
31
19
6
28
2
28
22
8
29
2
223
33
1

Highest AQI recorded in

April

54AQI

Lowest AQI recorded in

July

22AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
39AQI
Least Polluted Year Recorded
2024(Avg.)
30AQI

Harlington's annual 2025 AQI (39) shows an average percentage change of 19.9% (worsened AQI) compared to previous years: 2020 (34), 2021 (34), 2022 (35), 2023 (32), 2024 (30).