Hc Arsted Institute, Copenhagen, Hovedstaden, Denmark 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
Hc Arsted Institute, Copenhagen, Hovedstaden, Denmark
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
29th Aug 2024
39AQILowest AQI recorded on
28th Aug 2021
11AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 21 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Hc Arsted Institute, Copenhagen, Hovedstaden, Denmark
AQI
Day
Night
.
4 AM3rd Aug 2025
9 PM
3 AM4th Aug 2025
Day time
Avg. Highest Time
6AM3rd Aug
27AQI
Avg. Lowest Time
10AM3rd Aug
18AQI
Night time
Avg. Highest Time
1AM4th Aug
23AQI
Avg. Lowest Time
3AM4th Aug
20AQI
In the last 24 hours,
Hc Arsted Institute's AQI reached its highest point of 27 at 6 AM during the Day, while the lowest point, 18, was recorded at 10 AM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hc Arsted Institute, Copenhagen, Hovedstaden, Denmark
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 2025194 AMAQI
5th Jul 2025205 AMAQI
5th Jul 2025206 AMAQI
5th Jul 2025207 AMAQI
5th Jul 2025208 AMAQI
5th Jul 2025209 AMAQI
5th Jul 20252010 AMAQI
5th Jul 20252211 AMAQI
5th Jul 20252012 PMAQI
5th Jul 2025181 PMAQI
5th Jul 2025202 PMAQI
5th Jul 2025203 PMAQI
5th Jul 2025204 PMAQI
5th Jul 2025205 PMAQI
5th Jul 2025206 PMAQI
5th Jul 2025207 PMAQI
5th Jul 2025218 PMAQI
5th Jul 2025209 PMAQI
5th Jul 20251910 PMAQI
5th Jul 20252011 PMAQI
6th Jul 20252012 AMAQI
6th Jul 2025201 AMAQI
6th Jul 2025192 AMAQI
6th Jul 2025193 AMAQI
16°C15/18°C
6th Jul 2025194 AMAQI
6th Jul 2025205 AMAQI
6th Jul 2025216 AMAQI
6th Jul 2025217 AMAQI
6th Jul 2025208 AMAQI
6th Jul 2025229 AMAQI
6th Jul 20252110 AMAQI
6th Jul 20252011 AMAQI
6th Jul 20251912 PMAQI
6th Jul 2025181 PMAQI
6th Jul 2025192 PMAQI
6th Jul 2025183 PMAQI
6th Jul 2025184 PMAQI
6th Jul 2025205 PMAQI
6th Jul 2025216 PMAQI
6th Jul 2025207 PMAQI
6th Jul 2025208 PMAQI
6th Jul 2025209 PMAQI
6th Jul 20251910 PMAQI
6th Jul 20251911 PMAQI
7th Jul 20251912 AMAQI
7th Jul 2025201 AMAQI
7th Jul 2025192 AMAQI
7th Jul 2025193 AMAQI
18°C15/21°C
7th Jul 2025184 AMAQI
7th Jul 2025175 AMAQI
7th Jul 2025186 AMAQI
7th Jul 2025187 AMAQI
7th Jul 2025188 AMAQI
7th Jul 2025189 AMAQI
7th Jul 20251810 AMAQI
7th Jul 20251811 AMAQI
7th Jul 20252112 PMAQI
7th Jul 2025181 PMAQI
7th Jul 2025182 PMAQI
7th Jul 2025183 PMAQI
7th Jul 2025184 PMAQI
7th Jul 2025195 PMAQI
7th Jul 2025186 PMAQI
7th Jul 2025187 PMAQI
7th Jul 2025198 PMAQI
7th Jul 2025189 PMAQI
7th Jul 20251810 PMAQI
7th Jul 20251811 PMAQI
8th Jul 20251812 AMAQI
8th Jul 2025181 AMAQI
8th Jul 2025182 AMAQI
8th Jul 2025173 AMAQI
17°C14/19°C
8th Jul 2025184 AMAQI
8th Jul 2025175 AMAQI
8th Jul 2025186 AMAQI
8th Jul 2025187 AMAQI
8th Jul 2025198 AMAQI
8th Jul 2025209 AMAQI
8th Jul 20251910 AMAQI
8th Jul 20251911 AMAQI
8th Jul 20251912 PMAQI
8th Jul 2025171 PMAQI
8th Jul 2025182 PMAQI
8th Jul 2025173 PMAQI
8th Jul 2025174 PMAQI
8th Jul 2025175 PMAQI
8th Jul 2025186 PMAQI
8th Jul 2025187 PMAQI
8th Jul 2025178 PMAQI
8th Jul 2025189 PMAQI
8th Jul 20251810 PMAQI
8th Jul 20251811 PMAQI
9th Jul 20251812 AMAQI
9th Jul 2025181 AMAQI
9th Jul 2025182 AMAQI
9th Jul 2025183 AMAQI
16°C14/19°C
9th Jul 2025184 AMAQI
9th Jul 2025175 AMAQI
9th Jul 2025266 AMAQI
9th Jul 2025187 AMAQI
9th Jul 2025188 AMAQI
9th Jul 2025189 AMAQI
9th Jul 20251810 AMAQI
9th Jul 20251911 AMAQI
9th Jul 20251812 PMAQI
9th Jul 2025171 PMAQI
9th Jul 2025172 PMAQI
9th Jul 2025183 PMAQI
9th Jul 2025184 PMAQI
9th Jul 2025185 PMAQI
9th Jul 2025176 PMAQI
9th Jul 2025187 PMAQI
9th Jul 2025178 PMAQI
9th Jul 2025189 PMAQI
9th Jul 20251610 PMAQI
9th Jul 20251811 PMAQI
10th Jul 20251812 AMAQI
10th Jul 2025181 AMAQI
10th Jul 2025182 AMAQI
10th Jul 2025183 AMAQI
17°C14/20°C
10th Jul 2025194 AMAQI
10th Jul 2025195 AMAQI
10th Jul 2025186 AMAQI
10th Jul 2025177 AMAQI
10th Jul 2025178 AMAQI
10th Jul 2025199 AMAQI
10th Jul 20252010 AMAQI
10th Jul 20252011 AMAQI
10th Jul 20252012 PMAQI
10th Jul 2025191 PMAQI
10th Jul 2025182 PMAQI
10th Jul 2025193 PMAQI
10th Jul 2025184 PMAQI
10th Jul 2025185 PMAQI
10th Jul 2025186 PMAQI
10th Jul 2025187 PMAQI
10th Jul 2025188 PMAQI
10th Jul 2025189 PMAQI
10th Jul 20251810 PMAQI
10th Jul 20251811 PMAQI
11th Jul 20251912 AMAQI
11th Jul 2025191 AMAQI
11th Jul 2025202 AMAQI
11th Jul 2025203 AMAQI
18°C14/21°C
11th Jul 2025204 AMAQI
11th Jul 2025205 AMAQI
11th Jul 2025206 AMAQI
11th Jul 2025227 AMAQI
11th Jul 2025228 AMAQI
11th Jul 2025219 AMAQI
11th Jul 20252210 AMAQI
11th Jul 20252111 AMAQI
11th Jul 20252112 PMAQI
11th Jul 2025201 PMAQI
11th Jul 2025212 PMAQI
11th Jul 2025203 PMAQI
11th Jul 2025204 PMAQI
11th Jul 2025215 PMAQI
11th Jul 2025226 PMAQI
11th Jul 2025217 PMAQI
11th Jul 2025218 PMAQI
11th Jul 2025219 PMAQI
11th Jul 20252110 PMAQI
11th Jul 20252011 PMAQI
12th Jul 20252012 AMAQI
12th Jul 2025211 AMAQI
12th Jul 2025222 AMAQI
12th Jul 2025223 AMAQI
18°C16/21°C
12th Jul 2025244 AMAQI
12th Jul 2025235 AMAQI
12th Jul 2025226 AMAQI
12th Jul 2025247 AMAQI
12th Jul 2025238 AMAQI
12th Jul 2025249 AMAQI
12th Jul 20252510 AMAQI
12th Jul 20252411 AMAQI
12th Jul 20252412 PMAQI
12th Jul 2025221 PMAQI
12th Jul 2025222 PMAQI
12th Jul 2025213 PMAQI
12th Jul 2025204 PMAQI
12th Jul 2025205 PMAQI
12th Jul 2025206 PMAQI
12th Jul 2025207 PMAQI
12th Jul 2025218 PMAQI
12th Jul 2025199 PMAQI
12th Jul 20252110 PMAQI
12th Jul 20252211 PMAQI
13th Jul 20252212 AMAQI
13th Jul 2025231 AMAQI
13th Jul 2025222 AMAQI
13th Jul 2025233 AMAQI
18°C16/20°C
13th Jul 2025254 AMAQI
13th Jul 2025245 AMAQI
13th Jul 2025226 AMAQI
13th Jul 2025227 AMAQI
13th Jul 2025198 AMAQI
13th Jul 2025209 AMAQI
13th Jul 20252310 AMAQI
13th Jul 20252511 AMAQI
13th Jul 20252412 PMAQI
13th Jul 2025201 PMAQI
13th Jul 2025202 PMAQI
13th Jul 2025203 PMAQI
13th Jul 2025224 PMAQI
13th Jul 2025215 PMAQI
13th Jul 2025206 PMAQI
13th Jul 2025207 PMAQI
13th Jul 2025208 PMAQI
13th Jul 2025219 PMAQI
13th Jul 20252210 PMAQI
13th Jul 20252211 PMAQI
14th Jul 20252212 AMAQI
14th Jul 2025221 AMAQI
14th Jul 2025222 AMAQI
14th Jul 2025243 AMAQI
18°C15/21°C
14th Jul 2025244 AMAQI
14th Jul 2025265 AMAQI
14th Jul 2025246 AMAQI
14th Jul 2025247 AMAQI
14th Jul 2025238 AMAQI
14th Jul 2025249 AMAQI
14th Jul 20252310 AMAQI
14th Jul 20252411 AMAQI
14th Jul 20252512 PMAQI
14th Jul 2025231 PMAQI
14th Jul 2025242 PMAQI
14th Jul 2025243 PMAQI
14th Jul 2025244 PMAQI
14th Jul 2025245 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025247 PMAQI
14th Jul 2025248 PMAQI
14th Jul 2025269 PMAQI
14th Jul 20252510 PMAQI
14th Jul 20252411 PMAQI
15th Jul 20252412 AMAQI
15th Jul 2025241 AMAQI
15th Jul 2025252 AMAQI
15th Jul 2025263 AMAQI
19°C16/21°C
15th Jul 2025294 AMAQI
15th Jul 2025275 AMAQI
15th Jul 2025276 AMAQI
15th Jul 2025307 AMAQI
15th Jul 2025318 AMAQI
15th Jul 2025289 AMAQI
15th Jul 20252710 AMAQI
15th Jul 20252811 AMAQI
15th Jul 20252612 PMAQI
15th Jul 2025261 PMAQI
15th Jul 2025272 PMAQI
15th Jul 2025283 PMAQI
15th Jul 2025284 PMAQI
15th Jul 2025275 PMAQI
15th Jul 2025276 PMAQI
15th Jul 2025277 PMAQI
15th Jul 2025268 PMAQI
15th Jul 2025279 PMAQI
15th Jul 20252810 PMAQI
15th Jul 20252911 PMAQI
16th Jul 20253012 AMAQI
16th Jul 2025281 AMAQI
16th Jul 2025282 AMAQI
16th Jul 2025263 AMAQI
18°C16/21°C
16th Jul 2025244 AMAQI
16th Jul 2025245 AMAQI
16th Jul 2025256 AMAQI
16th Jul 2025247 AMAQI
16th Jul 2025248 AMAQI
16th Jul 2025249 AMAQI
16th Jul 20252410 AMAQI
16th Jul 20252511 AMAQI
16th Jul 20252412 PMAQI
16th Jul 2025251 PMAQI
16th Jul 2025242 PMAQI
16th Jul 2025243 PMAQI
16th Jul 2025244 PMAQI
16th Jul 2025245 PMAQI
16th Jul 2025256 PMAQI
16th Jul 2025257 PMAQI
16th Jul 2025248 PMAQI
16th Jul 2025259 PMAQI
16th Jul 20252410 PMAQI
16th Jul 20252511 PMAQI
17th Jul 20252512 AMAQI
17th Jul 2025261 AMAQI
17th Jul 2025252 AMAQI
17th Jul 2025243 AMAQI
17°C16/18°C
17th Jul 2025244 AMAQI
17th Jul 2025255 AMAQI
17th Jul 2025246 AMAQI
17th Jul 2025267 AMAQI
17th Jul 2025288 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025281 PMAQI
17th Jul 2025272 PMAQI
17th Jul 2025253 PMAQI
17th Jul 2025264 PMAQI
17th Jul 2025265 PMAQI
17th Jul 2025266 PMAQI
17th Jul 2025247 PMAQI
17th Jul 2025258 PMAQI
17th Jul 2025259 PMAQI
17th Jul 20252510 PMAQI
17th Jul 20252611 PMAQI
18th Jul 20252612 AMAQI
18th Jul 2025261 AMAQI
18th Jul 2025262 AMAQI
18th Jul 2025273 AMAQI
19°C17/22°C
18th Jul 2025284 AMAQI
18th Jul 2025295 AMAQI
18th Jul 2025286 AMAQI
18th Jul 2025287 AMAQI
18th Jul 2025288 AMAQI
18th Jul 2025279 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252711 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025272 PMAQI
18th Jul 2025293 PMAQI
18th Jul 2025294 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025278 PMAQI
18th Jul 2025299 PMAQI
18th Jul 20252810 PMAQI
18th Jul 20252811 PMAQI
19th Jul 20252812 AMAQI
19th Jul 2025281 AMAQI
19th Jul 2025282 AMAQI
19th Jul 2025293 AMAQI
20°C17/22°C
19th Jul 2025324 AMAQI
19th Jul 2025325 AMAQI
19th Jul 2025326 AMAQI
19th Jul 2025327 AMAQI
19th Jul 2025328 AMAQI
19th Jul 2025309 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252811 AMAQI
19th Jul 20252712 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025323 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025335 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025327 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025329 PMAQI
19th Jul 20253110 PMAQI
19th Jul 20253211 PMAQI
20th Jul 20253212 AMAQI
20th Jul 2025321 AMAQI
20th Jul 2025332 AMAQI
20th Jul 2025363 AMAQI
21°C18/24°C
20th Jul 2025384 AMAQI
20th Jul 2025345 AMAQI
20th Jul 2025346 AMAQI
20th Jul 2025327 AMAQI
20th Jul 2025328 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20253810 AMAQI
20th Jul 20253311 AMAQI
20th Jul 20253312 PMAQI
20th Jul 2025331 PMAQI
20th Jul 2025362 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025374 PMAQI
20th Jul 2025355 PMAQI
20th Jul 2025356 PMAQI
20th Jul 2025347 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025369 PMAQI
20th Jul 20253610 PMAQI
20th Jul 20253611 PMAQI
21st Jul 20253712 AMAQI
21st Jul 2025371 AMAQI
21st Jul 2025362 AMAQI
21st Jul 2025383 AMAQI
21°C19/23°C
21st Jul 2025344 AMAQI
21st Jul 2025345 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025357 AMAQI
21st Jul 2025348 AMAQI
21st Jul 2025369 AMAQI
21st Jul 20253610 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20253412 PMAQI
21st Jul 2025331 PMAQI
21st Jul 2025372 PMAQI
21st Jul 2025363 PMAQI
21st Jul 2025354 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025366 PMAQI
21st Jul 2025367 PMAQI
21st Jul 2025368 PMAQI
21st Jul 2025379 PMAQI
21st Jul 20253510 PMAQI
21st Jul 20253611 PMAQI
22nd Jul 20253612 AMAQI
22nd Jul 2025361 AMAQI
22nd Jul 2025352 AMAQI
22nd Jul 2025323 AMAQI
19°C18/21°C
22nd Jul 2025384 AMAQI
22nd Jul 2025375 AMAQI
22nd Jul 2025386 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025358 AMAQI
22nd Jul 2025369 AMAQI
22nd Jul 20253510 AMAQI
22nd Jul 20253311 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025371 PMAQI
22nd Jul 2025352 PMAQI
22nd Jul 2025373 PMAQI
22nd Jul 2025374 PMAQI
22nd Jul 2025365 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025367 PMAQI
22nd Jul 2025368 PMAQI
22nd Jul 2025349 PMAQI
22nd Jul 20253410 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20253612 AMAQI
23rd Jul 2025381 AMAQI
23rd Jul 2025312 AMAQI
23rd Jul 2025253 AMAQI
18°C17/21°C
23rd Jul 2025294 AMAQI
23rd Jul 2025295 AMAQI
23rd Jul 2025286 AMAQI
23rd Jul 2025287 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20252710 AMAQI
23rd Jul 20252611 AMAQI
23rd Jul 20252712 PMAQI
23rd Jul 2025281 PMAQI
23rd Jul 2025252 PMAQI
23rd Jul 2025263 PMAQI
23rd Jul 2025264 PMAQI
23rd Jul 2025265 PMAQI
23rd Jul 2025266 PMAQI
23rd Jul 2025287 PMAQI
23rd Jul 2025288 PMAQI
23rd Jul 2025289 PMAQI
23rd Jul 20252810 PMAQI
23rd Jul 20252811 PMAQI
24th Jul 20252812 AMAQI
24th Jul 2025291 AMAQI
24th Jul 2025282 AMAQI
24th Jul 2025263 AMAQI
19°C17/21°C
24th Jul 2025284 AMAQI
24th Jul 2025305 AMAQI
24th Jul 2025286 AMAQI
24th Jul 2025267 AMAQI
24th Jul 2025288 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20252812 PMAQI
24th Jul 2025271 PMAQI
24th Jul 2025282 PMAQI
24th Jul 2025283 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025306 PMAQI
24th Jul 2025287 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025289 PMAQI
24th Jul 20252810 PMAQI
24th Jul 20252811 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025291 AMAQI
25th Jul 2025312 AMAQI
25th Jul 2025363 AMAQI
20°C18/22°C
25th Jul 2025364 AMAQI
25th Jul 2025385 AMAQI
25th Jul 2025356 AMAQI
25th Jul 2025377 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025359 AMAQI
25th Jul 20253210 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20253212 PMAQI
25th Jul 2025321 PMAQI
25th Jul 2025352 PMAQI
25th Jul 2025383 PMAQI
25th Jul 2025364 PMAQI
25th Jul 2025355 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025359 PMAQI
25th Jul 20253510 PMAQI
25th Jul 20253511 PMAQI
26th Jul 20253512 AMAQI
26th Jul 2025361 AMAQI
26th Jul 2025342 AMAQI
26th Jul 2025283 AMAQI
20°C18/23°C
26th Jul 2025284 AMAQI
26th Jul 2025285 AMAQI
26th Jul 2025276 AMAQI
26th Jul 2025287 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025329 AMAQI
26th Jul 20253410 AMAQI
26th Jul 20253411 AMAQI
26th Jul 20253312 PMAQI
26th Jul 2025341 PMAQI
26th Jul 2025312 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025315 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025327 PMAQI
26th Jul 2025318 PMAQI
26th Jul 2025319 PMAQI
26th Jul 20253010 PMAQI
26th Jul 20253011 PMAQI
27th Jul 20253012 AMAQI
27th Jul 2025311 AMAQI
27th Jul 2025322 AMAQI
27th Jul 2025313 AMAQI
19°C16/22°C
27th Jul 2025324 AMAQI
27th Jul 2025305 AMAQI
27th Jul 2025336 AMAQI
27th Jul 2025367 AMAQI
27th Jul 2025328 AMAQI
27th Jul 2025349 AMAQI
27th Jul 20253310 AMAQI
27th Jul 20253111 AMAQI
27th Jul 20253012 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025302 PMAQI
27th Jul 2025313 PMAQI
27th Jul 2025324 PMAQI
27th Jul 2025305 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025317 PMAQI
27th Jul 2025308 PMAQI
27th Jul 2025319 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253011 PMAQI
28th Jul 20253312 AMAQI
28th Jul 2025331 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025283 AMAQI
19°C17/21°C
28th Jul 2025284 AMAQI
28th Jul 2025285 AMAQI
28th Jul 2025286 AMAQI
28th Jul 2025297 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20252811 AMAQI
28th Jul 20252712 PMAQI
28th Jul 2025261 PMAQI
28th Jul 2025262 PMAQI
28th Jul 2025273 PMAQI
28th Jul 2025274 PMAQI
28th Jul 2025265 PMAQI
28th Jul 2025276 PMAQI
28th Jul 2025277 PMAQI
28th Jul 2025288 PMAQI
28th Jul 2025289 PMAQI
28th Jul 20252610 PMAQI
28th Jul 20252611 PMAQI
29th Jul 20252712 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025272 AMAQI
29th Jul 2025243 AMAQI
19°C16/21°C
29th Jul 2025264 AMAQI
29th Jul 2025245 AMAQI
29th Jul 2025266 AMAQI
29th Jul 2025267 AMAQI
29th Jul 2025268 AMAQI
29th Jul 2025279 AMAQI
29th Jul 20252810 AMAQI
29th Jul 20252711 AMAQI
29th Jul 20252712 PMAQI
29th Jul 2025261 PMAQI
29th Jul 2025252 PMAQI
29th Jul 2025243 PMAQI
29th Jul 2025254 PMAQI
29th Jul 2025245 PMAQI
29th Jul 2025246 PMAQI
29th Jul 2025257 PMAQI
29th Jul 2025258 PMAQI
29th Jul 2025259 PMAQI
29th Jul 20252410 PMAQI
29th Jul 20252511 PMAQI
30th Jul 20252512 AMAQI
30th Jul 2025261 AMAQI
30th Jul 2025262 AMAQI
30th Jul 2025263 AMAQI
18°C16/21°C
30th Jul 2025254 AMAQI
30th Jul 2025265 AMAQI
30th Jul 2025256 AMAQI
30th Jul 2025257 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025229 AMAQI
30th Jul 20252310 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252412 PMAQI
30th Jul 2025241 PMAQI
30th Jul 2025232 PMAQI
30th Jul 2025233 PMAQI
30th Jul 2025244 PMAQI
30th Jul 2025245 PMAQI
30th Jul 2025246 PMAQI
30th Jul 2025247 PMAQI
30th Jul 2025238 PMAQI
30th Jul 2025249 PMAQI
30th Jul 20252310 PMAQI
30th Jul 20252311 PMAQI
31st Jul 20252312 AMAQI
31st Jul 2025231 AMAQI
31st Jul 2025232 AMAQI
31st Jul 2025233 AMAQI
17°C15/19°C
31st Jul 2025224 AMAQI
31st Jul 2025225 AMAQI
31st Jul 2025226 AMAQI
31st Jul 2025217 AMAQI
31st Jul 2025218 AMAQI
31st Jul 2025229 AMAQI
31st Jul 20252210 AMAQI
31st Jul 20252111 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025201 PMAQI
31st Jul 2025242 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025214 PMAQI
31st Jul 2025185 PMAQI
31st Jul 2025216 PMAQI
31st Jul 2025207 PMAQI
31st Jul 2025228 PMAQI
31st Jul 2025229 PMAQI
31st Jul 20252510 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025261 AMAQI
1st Aug 2025222 AMAQI
1st Aug 2025223 AMAQI
17°C16/18°C
1st Aug 2025204 AMAQI
1st Aug 2025205 AMAQI
1st Aug 2025246 AMAQI
1st Aug 2025267 AMAQI
1st Aug 2025238 AMAQI
1st Aug 2025239 AMAQI
1st Aug 20252610 AMAQI
1st Aug 20252211 AMAQI
1st Aug 20252412 PMAQI
1st Aug 2025231 PMAQI
1st Aug 2025232 PMAQI
1st Aug 2025223 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025225 PMAQI
1st Aug 2025226 PMAQI
1st Aug 2025217 PMAQI
1st Aug 2025218 PMAQI
1st Aug 2025219 PMAQI
1st Aug 20252310 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025232 AMAQI
2nd Aug 2025223 AMAQI
18°C16/21°C
2nd Aug 2025234 AMAQI
2nd Aug 2025235 AMAQI
2nd Aug 2025266 AMAQI
2nd Aug 2025247 AMAQI
2nd Aug 2025248 AMAQI
2nd Aug 2025229 AMAQI
2nd Aug 20252610 AMAQI
2nd Aug 20252411 AMAQI
2nd Aug 20252212 PMAQI
2nd Aug 2025211 PMAQI
2nd Aug 2025222 PMAQI
2nd Aug 2025243 PMAQI
2nd Aug 2025224 PMAQI
2nd Aug 2025225 PMAQI
2nd Aug 2025216 PMAQI
2nd Aug 2025207 PMAQI
2nd Aug 2025218 PMAQI
2nd Aug 2025229 PMAQI
2nd Aug 20252410 PMAQI
2nd Aug 20252411 PMAQI
3rd Aug 20252412 AMAQI
3rd Aug 2025231 AMAQI
3rd Aug 2025232 AMAQI
3rd Aug 2025213 AMAQI
19°C16/21°C
3rd Aug 2025224 AMAQI
3rd Aug 2025195 AMAQI
3rd Aug 2025276 AMAQI
3rd Aug 2025217 AMAQI
3rd Aug 2025188 AMAQI
3rd Aug 2025189 AMAQI
3rd Aug 20251810 AMAQI
3rd Aug 20252011 AMAQI
3rd Aug 20252212 PMAQI
3rd Aug 2025201 PMAQI
3rd Aug 2025222 PMAQI
3rd Aug 2025193 PMAQI
3rd Aug 2025244 PMAQI
3rd Aug 2025195 PMAQI
3rd Aug 2025266 PMAQI
3rd Aug 2025197 PMAQI
3rd Aug 2025218 PMAQI
3rd Aug 2025229 PMAQI
3rd Aug 20252210 PMAQI
3rd Aug 20252211 PMAQI
4th Aug 20252212 AMAQI
4th Aug 2025231 AMAQI
4th Aug 2025222 AMAQI
4th Aug 2025203 AMAQI
17°C16/18°C
4th Aug 2025234 AMAQI
4 AM4th Aug 2025235 AMAQI
4th Aug 2025216 AMAQI
4th Aug 2025227 AMAQI
4th Aug 2025228 AMAQI
4th Aug 2025229 AMAQI
4th Aug 20252310 AMAQI
4th Aug 20252411 AMAQI
4th Aug 20252112 PMAQI
12 PM4th Aug 2025221 PMAQI
4th Aug 2025212 PMAQI
4th Aug 2025233 PMAQI
4th Aug 2025224 PMAQI
4th Aug 2025205 PMAQI
4th Aug 2025226 PMAQI
4th Aug 2025227 PMAQI
4th Aug 2025238 PMAQI
9 PM
12 AM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 9 PM
25AQI
18 hours / Day
540 hours / Month
Avg. Lowest Time
4 AM - 9 PM
25AQI
18 hours / Day
540 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 9 PM (Avg. 25), while the lowest AQI was between 4 AM to 9 PM (Avg. 25).
Night time
Avg. Highest Time
12 AM - 11 PM
25AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 11 PM
25AQI
6 hours / Day
180 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
Hc Arsted Institute, Copenhagen, Hovedstaden, Denmark
2025
85%
183
15%
32
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
183 DaysModerate
32 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% 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
Hc Arsted Institute, Copenhagen, Hovedstaden, Denmark
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
30AQI
30AQI
2nd January 2025
28AQI
28AQI
3rd January 2025
28AQI
28AQI
4th January 2025
26AQI
26AQI
5th January 2025
26AQI
26AQI
6th January 2025
25AQI
25AQI
7th January 2025
26AQI
26AQI
8th January 2025
27AQI
27AQI
9th January 2025
28AQI
28AQI
10th January 2025
24AQI
24AQI
11th January 2025
25AQI
25AQI
12th January 2025
26AQI
26AQI
13th January 2025
23AQI
23AQI
14th January 2025
34AQI
34AQI
15th January 2025
33AQI
33AQI
16th January 2025
30AQI
30AQI
17th January 2025
35AQI
35AQI
18th January 2025
34AQI
34AQI
19th January 2025
33AQI
33AQI
20th January 2025
35AQI
35AQI
21st January 2025
48AQI
48AQI
22nd January 2025
51AQI
51AQI
23rd January 2025
51AQI
51AQI
24th January 2025
46AQI
46AQI
25th January 2025
37AQI
37AQI
26th January 2025
34AQI
34AQI
27th January 2025
28AQI
28AQI
28th January 2025
26AQI
26AQI
29th January 2025
28AQI
28AQI
30th January 2025
27AQI
27AQI
31st January 2025
27AQI
27AQI
1st February 2025
28AQI
28AQI
2nd February 2025
31AQI
31AQI
3rd February 2025
41AQI
41AQI
4th February 2025
56AQI
56AQI
5th February 2025
56AQI
56AQI
6th February 2025
51AQI
51AQI
7th February 2025
42AQI
42AQI
8th February 2025
48AQI
48AQI
9th February 2025
54AQI
54AQI
10th February 2025
53AQI
53AQI
11th February 2025
50AQI
50AQI
12th February 2025
52AQI
52AQI
13th February 2025
52AQI
52AQI
14th February 2025
43AQI
43AQI
15th February 2025
43AQI
43AQI
16th February 2025
38AQI
38AQI
17th February 2025
34AQI
34AQI
18th February 2025
35AQI
35AQI
19th February 2025
45AQI
45AQI
20th February 2025
47AQI
47AQI
21st February 2025
60AQI
60AQI
22nd February 2025
66AQI
66AQI
23rd February 2025
61AQI
61AQI
24th February 2025
56AQI
56AQI
25th February 2025
52AQI
52AQI
26th February 2025
53AQI
53AQI
27th February 2025
51AQI
51AQI
28th February 2025
46AQI
46AQI
1st March 2025
42AQI
42AQI
2nd March 2025
40AQI
40AQI
3rd March 2025
38AQI
38AQI
4th March 2025
35AQI
35AQI
5th March 2025
44AQI
44AQI
6th March 2025
57AQI
57AQI
7th March 2025
67AQI
67AQI
8th March 2025
73AQI
73AQI
9th March 2025
79AQI
79AQI
10th March 2025
75AQI
75AQI
11th March 2025
71AQI
71AQI
12th March 2025
59AQI
59AQI
13th March 2025
55AQI
55AQI
14th March 2025
48AQI
48AQI
15th March 2025
41AQI
41AQI
16th March 2025
36AQI
36AQI
17th March 2025
30AQI
30AQI
18th March 2025
30AQI
30AQI
19th March 2025
36AQI
36AQI
20th March 2025
51AQI
51AQI
21st March 2025
54AQI
54AQI
22nd March 2025
53AQI
53AQI
23rd March 2025
56AQI
56AQI
24th March 2025
58AQI
58AQI
25th March 2025
61AQI
61AQI
26th March 2025
47AQI
47AQI
27th March 2025
48AQI
48AQI
28th March 2025
53AQI
53AQI
29th March 2025
53AQI
53AQI
30th March 2025
46AQI
46AQI
31st March 2025
37AQI
37AQI
1st April 2025
33AQI
33AQI
2nd April 2025
32AQI
32AQI
3rd April 2025
32AQI
32AQI
4th April 2025
32AQI
32AQI
5th April 2025
28AQI
28AQI
6th April 2025
25AQI
25AQI
7th April 2025
24AQI
24AQI
8th April 2025
25AQI
25AQI
9th April 2025
29AQI
29AQI
10th April 2025
20AQI
20AQI
11th April 2025
24AQI
24AQI
12th April 2025
30AQI
30AQI
13th April 2025
38AQI
38AQI
14th April 2025
44AQI
44AQI
15th April 2025
46AQI
46AQI
16th April 2025
48AQI
48AQI
17th April 2025
48AQI
48AQI
18th April 2025
43AQI
43AQI
19th April 2025
31AQI
31AQI
20th April 2025
39AQI
39AQI
21st April 2025
39AQI
39AQI
22nd April 2025
44AQI
44AQI
23rd April 2025
39AQI
39AQI
24th April 2025
35AQI
35AQI
25th April 2025
31AQI
31AQI
26th April 2025
27AQI
27AQI
27th April 2025
26AQI
26AQI
28th April 2025
28AQI
28AQI
29th April 2025
28AQI
28AQI
30th April 2025
27AQI
27AQI
1st May 2025
30AQI
30AQI
2nd May 2025
28AQI
28AQI
3rd May 2025
24AQI
24AQI
4th May 2025
20AQI
20AQI
5th May 2025
18AQI
18AQI
6th May 2025
18AQI
18AQI
7th May 2025
19AQI
19AQI
8th May 2025
20AQI
20AQI
9th May 2025
20AQI
20AQI
10th May 2025
22AQI
22AQI
11th May 2025
20AQI
20AQI
12th May 2025
21AQI
21AQI
13th May 2025
22AQI
22AQI
14th May 2025
24AQI
24AQI
15th May 2025
22AQI
22AQI
16th May 2025
21AQI
21AQI
17th May 2025
20AQI
20AQI
18th May 2025
19AQI
19AQI
19th May 2025
20AQI
20AQI
20th May 2025
22AQI
22AQI
21st May 2025
24AQI
24AQI
22nd May 2025
21AQI
21AQI
23rd May 2025
18AQI
18AQI
24th May 2025
18AQI
18AQI
25th May 2025
20AQI
20AQI
26th May 2025
20AQI
20AQI
27th May 2025
21AQI
21AQI
28th May 2025
19AQI
19AQI
29th May 2025
19AQI
19AQI
30th May 2025
19AQI
19AQI
31st May 2025
18AQI
18AQI
1st June 2025
19AQI
19AQI
2nd June 2025
21AQI
21AQI
3rd June 2025
21AQI
21AQI
4th June 2025
24AQI
24AQI
5th June 2025
21AQI
21AQI
6th June 2025
19AQI
19AQI
7th June 2025
17AQI
17AQI
8th June 2025
17AQI
17AQI
9th June 2025
19AQI
19AQI
10th June 2025
33AQI
33AQI
11th June 2025
32AQI
32AQI
12th June 2025
30AQI
30AQI
13th June 2025
26AQI
26AQI
14th June 2025
24AQI
24AQI
15th June 2025
28AQI
28AQI
16th June 2025
26AQI
26AQI
17th June 2025
29AQI
29AQI
18th June 2025
30AQI
30AQI
19th June 2025
26AQI
26AQI
20th June 2025
23AQI
23AQI
21st June 2025
22AQI
22AQI
22nd June 2025
22AQI
22AQI
23rd June 2025
25AQI
25AQI
24th June 2025
24AQI
24AQI
25th June 2025
21AQI
21AQI
26th June 2025
22AQI
22AQI
27th June 2025
22AQI
22AQI
28th June 2025
23AQI
23AQI
29th June 2025
22AQI
22AQI
30th June 2025
22AQI
22AQI
1st July 2025
22AQI
22AQI
2nd July 2025
23AQI
23AQI
3rd July 2025
24AQI
24AQI
4th July 2025
21AQI
21AQI
5th July 2025
20AQI
20AQI
6th July 2025
20AQI
20AQI
7th July 2025
18AQI
18AQI
8th July 2025
18AQI
18AQI
9th July 2025
18AQI
18AQI
10th July 2025
18AQI
18AQI
11th July 2025
21AQI
21AQI
12th July 2025
22AQI
22AQI
13th July 2025
22AQI
22AQI
14th July 2025
24AQI
24AQI
15th July 2025
27AQI
27AQI
16th July 2025
25AQI
25AQI
17th July 2025
26AQI
26AQI
18th July 2025
28AQI
28AQI
19th July 2025
31AQI
31AQI
20th July 2025
35AQI
35AQI
21st July 2025
36AQI
36AQI
22nd July 2025
36AQI
36AQI
23rd July 2025
28AQI
28AQI
24th July 2025
28AQI
28AQI
25th July 2025
34AQI
34AQI
26th July 2025
31AQI
31AQI
27th July 2025
31AQI
31AQI
28th July 2025
28AQI
28AQI
29th July 2025
26AQI
26AQI
30th July 2025
24AQI
24AQI
31st July 2025
22AQI
22AQI
1st August 2025
22AQI
22AQI
2nd August 2025
23AQI
23AQI
3rd August 2025
21AQI
21AQI
32AQI
48AQI
51AQI
33AQI
21AQI
24AQI
25AQI
22AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202533AQI
29
2
14
14
15
16
30
31
30
31
3
183
32
Highest AQI recorded in
March51AQI
Lowest AQI recorded in
May21AQI
202428AQI
31
29
31
30
31
30
31
31
24
25
6
27
3
31
351
9
Highest AQI recorded in
October36AQI
Lowest AQI recorded in
March21AQI
202326AQI
31
28
31
30
30
30
31
31
30
31
29
31
363
Highest AQI recorded in
May33AQI
Lowest AQI recorded in
December20AQI
202224AQI
30
21
30
28
31
26
24
1
28
31
30
31
311
Highest AQI recorded in
April30AQI
Lowest AQI recorded in
December17AQI
202124AQI
30
25
31
30
31
29
1
31
31
30
31
30
29
358
1
Highest AQI recorded in
June32AQI
Lowest AQI recorded in
December17AQI
202024AQI
13
21
18
29
31
29
30
30
30
31
262
Highest AQI recorded in
March31AQI
Lowest AQI recorded in
December13AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
33AQILeast Polluted Year Recorded
2022(Avg.)
24AQIHc Arsted Institute's annual 2025 AQI (33) shows an average percentage change of 30.3% (worsened AQI) compared to previous years: 2020 (24), 2021 (24), 2022 (24), 2023 (26), 2024 (28).
