Blackwater NWR, Cambridge, Maryland, United States 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
Blackwater NWR, Cambridge, Maryland, United States
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
68AQILowest AQI recorded on
12th Aug 2025
24AQISame Day Analysis (13th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 26 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 13th Aug - 14th Aug 2025
Blackwater NWR, Cambridge, Maryland, United States
AQI
Day
Night
.
6 AM13th Aug 2025
8 PM
5 AM14th Aug 2025
Day time
Avg. Highest Time
5PM13th Aug
38AQI
Avg. Lowest Time
7AM13th Aug
22AQI
Night time
Avg. Highest Time
9PM13th Aug
28AQI
Avg. Lowest Time
1AM14th Aug
22AQI
In the last 24 hours,
Blackwater NWR's AQI reached its highest point of 38 at 5 PM during the Day, while the lowest point, undefined, was recorded at 5 AM during the Night between 13th Aug and 14th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Blackwater NWR, Cambridge, Maryland, United States
JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
15th Jul 2025166 AMAQI
15th Jul 2025177 AMAQI
15th Jul 2025178 AMAQI
15th Jul 2025209 AMAQI
15th Jul 20252210 AMAQI
15th Jul 20252011 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025181 PMAQI
15th Jul 2025202 PMAQI
15th Jul 2025203 PMAQI
15th Jul 2025224 PMAQI
15th Jul 2025225 PMAQI
15th Jul 2025226 PMAQI
15th Jul 2025227 PMAQI
15th Jul 2025238 PMAQI
15th Jul 2025279 PMAQI
15th Jul 20252710 PMAQI
15th Jul 20252611 PMAQI
16th Jul 20252412 AMAQI
16th Jul 2025241 AMAQI
16th Jul 2025232 AMAQI
16th Jul 2025243 AMAQI
16th Jul 2025244 AMAQI
16th Jul 2025235 AMAQI
27°C24/31°C
16th Jul 2025246 AMAQI
16th Jul 2025247 AMAQI
16th Jul 2025268 AMAQI
16th Jul 2025269 AMAQI
16th Jul 20252610 AMAQI
16th Jul 20253111 AMAQI
16th Jul 20253212 PMAQI
16th Jul 2025341 PMAQI
16th Jul 2025332 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025294 PMAQI
16th Jul 2025315 PMAQI
16th Jul 2025316 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025308 PMAQI
16th Jul 2025349 PMAQI
16th Jul 20253210 PMAQI
16th Jul 20253111 PMAQI
17th Jul 20252912 AMAQI
17th Jul 2025221 AMAQI
17th Jul 2025202 AMAQI
17th Jul 2025203 AMAQI
17th Jul 2025204 AMAQI
17th Jul 2025235 AMAQI
27°C24/30°C
17th Jul 2025266 AMAQI
17th Jul 2025277 AMAQI
17th Jul 2025278 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20253111 AMAQI
17th Jul 20253212 PMAQI
17th Jul 2025321 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025333 PMAQI
17th Jul 2025334 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025316 PMAQI
17th Jul 2025317 PMAQI
17th Jul 2025328 PMAQI
17th Jul 2025319 PMAQI
17th Jul 20253210 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253212 AMAQI
18th Jul 2025331 AMAQI
18th Jul 2025332 AMAQI
18th Jul 2025303 AMAQI
18th Jul 2025324 AMAQI
18th Jul 2025335 AMAQI
30°C26/35°C
18th Jul 2025306 AMAQI
18th Jul 2025317 AMAQI
18th Jul 2025308 AMAQI
18th Jul 2025299 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252812 PMAQI
18th Jul 2025271 PMAQI
18th Jul 2025272 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025304 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025296 PMAQI
18th Jul 2025317 PMAQI
18th Jul 2025308 PMAQI
18th Jul 2025309 PMAQI
18th Jul 20253010 PMAQI
18th Jul 20252911 PMAQI
19th Jul 20253012 AMAQI
19th Jul 2025281 AMAQI
19th Jul 2025262 AMAQI
19th Jul 2025243 AMAQI
19th Jul 2025284 AMAQI
19th Jul 2025295 AMAQI
29°C26/32°C
19th Jul 2025296 AMAQI
19th Jul 2025287 AMAQI
19th Jul 2025298 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20252611 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025312 PMAQI
19th Jul 2025293 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025296 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025298 PMAQI
19th Jul 2025309 PMAQI
19th Jul 20252810 PMAQI
19th Jul 20252711 PMAQI
20th Jul 20252512 AMAQI
20th Jul 2025171 AMAQI
20th Jul 2025162 AMAQI
20th Jul 2025163 AMAQI
20th Jul 2025164 AMAQI
20th Jul 2025175 AMAQI
27°C23/30°C
20th Jul 2025166 AMAQI
20th Jul 2025177 AMAQI
20th Jul 2025178 AMAQI
20th Jul 2025189 AMAQI
20th Jul 20251810 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252212 PMAQI
20th Jul 2025221 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025253 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025228 PMAQI
20th Jul 2025239 PMAQI
20th Jul 20252610 PMAQI
20th Jul 20252611 PMAQI
21st Jul 20252712 AMAQI
21st Jul 2025261 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025263 AMAQI
21st Jul 2025244 AMAQI
21st Jul 2025285 AMAQI
28°C24/32°C
21st Jul 2025276 AMAQI
21st Jul 2025277 AMAQI
21st Jul 2025268 AMAQI
21st Jul 2025279 AMAQI
21st Jul 20252510 AMAQI
21st Jul 20252811 AMAQI
21st Jul 20252912 PMAQI
21st Jul 2025301 PMAQI
21st Jul 2025302 PMAQI
21st Jul 2025283 PMAQI
21st Jul 2025284 PMAQI
21st Jul 2025295 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025287 PMAQI
21st Jul 2025298 PMAQI
21st Jul 2025349 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253611 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025421 AMAQI
22nd Jul 2025432 AMAQI
22nd Jul 2025463 AMAQI
22nd Jul 2025524 AMAQI
22nd Jul 2025515 AMAQI
27°C24/32°C
22nd Jul 2025526 AMAQI
22nd Jul 2025527 AMAQI
22nd Jul 2025538 AMAQI
22nd Jul 2025529 AMAQI
22nd Jul 20255210 AMAQI
22nd Jul 20255211 AMAQI
22nd Jul 20255412 PMAQI
22nd Jul 2025541 PMAQI
22nd Jul 2025542 PMAQI
22nd Jul 2025533 PMAQI
22nd Jul 2025534 PMAQI
22nd Jul 2025535 PMAQI
22nd Jul 2025536 PMAQI
22nd Jul 2025527 PMAQI
22nd Jul 2025508 PMAQI
22nd Jul 2025519 PMAQI
22nd Jul 20255210 PMAQI
22nd Jul 20255211 PMAQI
23rd Jul 20255012 AMAQI
23rd Jul 2025461 AMAQI
23rd Jul 2025462 AMAQI
23rd Jul 2025513 AMAQI
23rd Jul 2025494 AMAQI
23rd Jul 2025515 AMAQI
25°C19/31°C
23rd Jul 2025526 AMAQI
23rd Jul 2025527 AMAQI
23rd Jul 2025528 AMAQI
23rd Jul 2025509 AMAQI
23rd Jul 20254910 AMAQI
23rd Jul 20254811 AMAQI
23rd Jul 20254712 PMAQI
23rd Jul 2025481 PMAQI
23rd Jul 2025502 PMAQI
23rd Jul 2025523 PMAQI
23rd Jul 2025524 PMAQI
23rd Jul 2025505 PMAQI
23rd Jul 2025496 PMAQI
23rd Jul 2025517 PMAQI
23rd Jul 2025518 PMAQI
23rd Jul 2025449 PMAQI
23rd Jul 20254610 PMAQI
23rd Jul 20254711 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025321 AMAQI
24th Jul 2025302 AMAQI
24th Jul 2025293 AMAQI
24th Jul 2025294 AMAQI
24th Jul 2025265 AMAQI
24°C19/28°C
24th Jul 2025276 AMAQI
24th Jul 2025287 AMAQI
24th Jul 2025298 AMAQI
24th Jul 2025319 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20252911 AMAQI
24th Jul 20253212 PMAQI
24th Jul 2025321 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025363 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025355 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025337 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025369 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253411 PMAQI
25th Jul 20253312 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025312 AMAQI
25th Jul 2025303 AMAQI
25th Jul 2025274 AMAQI
25th Jul 2025255 AMAQI
26°C19/32°C
25th Jul 2025246 AMAQI
25th Jul 2025277 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20253510 AMAQI
25th Jul 20254011 AMAQI
25th Jul 20254012 PMAQI
25th Jul 2025501 PMAQI
25th Jul 2025492 PMAQI
25th Jul 2025473 PMAQI
25th Jul 2025454 PMAQI
25th Jul 2025445 PMAQI
25th Jul 2025436 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025388 PMAQI
25th Jul 2025449 PMAQI
25th Jul 20254410 PMAQI
25th Jul 20254511 PMAQI
26th Jul 20254312 AMAQI
26th Jul 2025441 AMAQI
26th Jul 2025392 AMAQI
26th Jul 2025413 AMAQI
26th Jul 2025444 AMAQI
26th Jul 2025465 AMAQI
30°C24/36°C
26th Jul 2025466 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025448 AMAQI
26th Jul 2025439 AMAQI
26th Jul 20254110 AMAQI
26th Jul 20254011 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025401 PMAQI
26th Jul 2025422 PMAQI
26th Jul 2025423 PMAQI
26th Jul 2025434 PMAQI
26th Jul 2025455 PMAQI
26th Jul 2025466 PMAQI
26th Jul 2025457 PMAQI
26th Jul 2025448 PMAQI
26th Jul 2025489 PMAQI
26th Jul 20254510 PMAQI
26th Jul 20254611 PMAQI
27th Jul 20254712 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025562 AMAQI
27th Jul 2025553 AMAQI
27th Jul 2025544 AMAQI
27th Jul 2025535 AMAQI
29°C24/35°C
27th Jul 2025546 AMAQI
27th Jul 2025547 AMAQI
27th Jul 2025528 AMAQI
27th Jul 2025529 AMAQI
27th Jul 20255110 AMAQI
27th Jul 20255111 AMAQI
27th Jul 20255212 PMAQI
27th Jul 2025511 PMAQI
27th Jul 2025502 PMAQI
27th Jul 2025523 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025525 PMAQI
27th Jul 2025526 PMAQI
27th Jul 2025547 PMAQI
27th Jul 2025498 PMAQI
27th Jul 2025449 PMAQI
27th Jul 20254410 PMAQI
27th Jul 20254211 PMAQI
28th Jul 20253712 AMAQI
28th Jul 2025181 AMAQI
28th Jul 2025182 AMAQI
28th Jul 2025173 AMAQI
28th Jul 2025174 AMAQI
28th Jul 2025195 AMAQI
28°C23/35°C
28th Jul 2025206 AMAQI
28th Jul 2025227 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025259 AMAQI
28th Jul 20252910 AMAQI
28th Jul 20253211 AMAQI
28th Jul 20253412 PMAQI
28th Jul 2025341 PMAQI
28th Jul 2025342 PMAQI
28th Jul 2025323 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025335 PMAQI
28th Jul 2025336 PMAQI
28th Jul 2025267 PMAQI
28th Jul 2025258 PMAQI
28th Jul 2025319 PMAQI
28th Jul 20253110 PMAQI
28th Jul 20253211 PMAQI
29th Jul 20253312 AMAQI
29th Jul 2025391 AMAQI
29th Jul 2025392 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025424 AMAQI
29th Jul 2025405 AMAQI
30°C25/35°C
29th Jul 2025426 AMAQI
29th Jul 2025437 AMAQI
29th Jul 2025418 AMAQI
29th Jul 2025419 AMAQI
29th Jul 20254010 AMAQI
29th Jul 20254211 AMAQI
29th Jul 20253912 PMAQI
29th Jul 2025411 PMAQI
29th Jul 2025432 PMAQI
29th Jul 2025443 PMAQI
29th Jul 2025444 PMAQI
29th Jul 2025465 PMAQI
29th Jul 2025486 PMAQI
29th Jul 2025447 PMAQI
29th Jul 2025448 PMAQI
29th Jul 2025459 PMAQI
29th Jul 20254410 PMAQI
29th Jul 20254511 PMAQI
30th Jul 20254512 AMAQI
30th Jul 2025451 AMAQI
30th Jul 2025452 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025454 AMAQI
30th Jul 2025445 AMAQI
29°C25/35°C
30th Jul 2025426 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025438 AMAQI
30th Jul 2025439 AMAQI
30th Jul 20254210 AMAQI
30th Jul 20254411 AMAQI
30th Jul 20254512 PMAQI
30th Jul 2025481 PMAQI
30th Jul 2025462 PMAQI
30th Jul 2025463 PMAQI
30th Jul 2025464 PMAQI
30th Jul 2025465 PMAQI
30th Jul 2025466 PMAQI
30th Jul 2025467 PMAQI
30th Jul 2025468 PMAQI
30th Jul 2025469 PMAQI
30th Jul 20254610 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254812 AMAQI
31st Jul 2025421 AMAQI
31st Jul 2025462 AMAQI
31st Jul 2025433 AMAQI
31st Jul 2025424 AMAQI
31st Jul 2025425 AMAQI
30°C26/36°C
31st Jul 2025446 AMAQI
31st Jul 2025477 AMAQI
31st Jul 2025458 AMAQI
31st Jul 2025449 AMAQI
31st Jul 20254210 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20254212 PMAQI
31st Jul 2025411 PMAQI
31st Jul 2025432 PMAQI
31st Jul 2025383 PMAQI
31st Jul 2025374 PMAQI
31st Jul 2025365 PMAQI
31st Jul 2025336 PMAQI
31st Jul 2025477 PMAQI
31st Jul 2025428 PMAQI
31st Jul 2025329 PMAQI
31st Jul 20253010 PMAQI
31st Jul 20252811 PMAQI
1st Aug 20252812 AMAQI
1st Aug 2025231 AMAQI
1st Aug 2025262 AMAQI
1st Aug 2025313 AMAQI
1st Aug 2025294 AMAQI
1st Aug 2025305 AMAQI
28°C25/35°C
1st Aug 2025366 AMAQI
1st Aug 2025407 AMAQI
1st Aug 2025348 AMAQI
1st Aug 2025359 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20252811 AMAQI
1st Aug 20253012 PMAQI
1st Aug 2025301 PMAQI
1st Aug 2025282 PMAQI
1st Aug 2025253 PMAQI
1st Aug 2025274 PMAQI
1st Aug 2025265 PMAQI
1st Aug 2025256 PMAQI
1st Aug 2025267 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20252810 PMAQI
1st Aug 20253111 PMAQI
2nd Aug 20253512 AMAQI
2nd Aug 2025351 AMAQI
2nd Aug 2025382 AMAQI
2nd Aug 2025363 AMAQI
2nd Aug 2025404 AMAQI
2nd Aug 2025395 AMAQI
22°C20/22°C
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025419 AMAQI
2nd Aug 20254010 AMAQI
2nd Aug 20253911 AMAQI
2nd Aug 20254412 PMAQI
2nd Aug 2025411 PMAQI
2nd Aug 2025442 PMAQI
2nd Aug 2025393 PMAQI
2nd Aug 2025394 PMAQI
2nd Aug 2025365 PMAQI
2nd Aug 2025346 PMAQI
2nd Aug 2025337 PMAQI
2nd Aug 2025348 PMAQI
2nd Aug 2025329 PMAQI
2nd Aug 20253410 PMAQI
2nd Aug 20253511 PMAQI
3rd Aug 20253612 AMAQI
3rd Aug 2025381 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025373 AMAQI
3rd Aug 2025354 AMAQI
3rd Aug 2025355 AMAQI
22°C17/28°C
3rd Aug 2025376 AMAQI
3rd Aug 2025347 AMAQI
3rd Aug 2025338 AMAQI
3rd Aug 2025329 AMAQI
3rd Aug 20253210 AMAQI
3rd Aug 20253211 AMAQI
3rd Aug 20253312 PMAQI
3rd Aug 2025321 PMAQI
3rd Aug 2025302 PMAQI
3rd Aug 2025283 PMAQI
3rd Aug 2025294 PMAQI
3rd Aug 2025305 PMAQI
3rd Aug 2025296 PMAQI
3rd Aug 2025347 PMAQI
3rd Aug 2025348 PMAQI
3rd Aug 2025329 PMAQI
3rd Aug 20253410 PMAQI
3rd Aug 20253411 PMAQI
4th Aug 20253412 AMAQI
4th Aug 2025361 AMAQI
4th Aug 2025332 AMAQI
4th Aug 2025363 AMAQI
4th Aug 2025344 AMAQI
4th Aug 2025385 AMAQI
22°C16/29°C
4th Aug 2025386 AMAQI
4th Aug 2025387 AMAQI
4th Aug 2025388 AMAQI
4th Aug 2025389 AMAQI
4th Aug 20253910 AMAQI
4th Aug 20254311 AMAQI
4th Aug 20254812 PMAQI
4th Aug 2025541 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025573 PMAQI
4th Aug 2025584 PMAQI
4th Aug 2025585 PMAQI
4th Aug 2025596 PMAQI
4th Aug 2025397 PMAQI
4th Aug 2025488 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255810 PMAQI
4th Aug 20255511 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025562 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025564 AMAQI
5th Aug 2025555 AMAQI
24°C16/31°C
5th Aug 2025566 AMAQI
5th Aug 2025567 AMAQI
5th Aug 2025568 AMAQI
5th Aug 2025569 AMAQI
5th Aug 20255710 AMAQI
5th Aug 20255711 AMAQI
5th Aug 20255812 PMAQI
5th Aug 2025601 PMAQI
5th Aug 2025652 PMAQI
5th Aug 2025673 PMAQI
5th Aug 2025644 PMAQI
5th Aug 2025655 PMAQI
5th Aug 2025696 PMAQI
5th Aug 2025647 PMAQI
5th Aug 2025698 PMAQI
5th Aug 2025729 PMAQI
5th Aug 20257010 PMAQI
5th Aug 20256611 PMAQI
6th Aug 20256612 AMAQI
6th Aug 2025661 AMAQI
6th Aug 2025652 AMAQI
6th Aug 2025623 AMAQI
6th Aug 2025614 AMAQI
6th Aug 2025625 AMAQI
24°C17/29°C
6th Aug 2025636 AMAQI
6th Aug 2025637 AMAQI
6th Aug 2025628 AMAQI
6th Aug 2025609 AMAQI
6th Aug 20256310 AMAQI
6th Aug 20256111 AMAQI
6th Aug 20256212 PMAQI
6th Aug 2025621 PMAQI
6th Aug 2025662 PMAQI
6th Aug 2025683 PMAQI
6th Aug 2025744 PMAQI
6th Aug 2025845 PMAQI
6th Aug 2025826 PMAQI
6th Aug 2025667 PMAQI
6th Aug 2025748 PMAQI
6th Aug 2025789 PMAQI
6th Aug 20257710 PMAQI
6th Aug 20256811 PMAQI
7th Aug 20256012 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025372 AMAQI
7th Aug 2025323 AMAQI
7th Aug 2025374 AMAQI
7th Aug 2025445 AMAQI
23°C20/26°C
7th Aug 2025506 AMAQI
7th Aug 2025537 AMAQI
7th Aug 2025568 AMAQI
7th Aug 2025609 AMAQI
7th Aug 20256410 AMAQI
7th Aug 20256711 AMAQI
7th Aug 20256612 PMAQI
7th Aug 2025681 PMAQI
7th Aug 2025682 PMAQI
7th Aug 2025683 PMAQI
7th Aug 2025664 PMAQI
7th Aug 2025655 PMAQI
7th Aug 2025646 PMAQI
7th Aug 2025637 PMAQI
7th Aug 2025628 PMAQI
7th Aug 2025629 PMAQI
7th Aug 20256110 PMAQI
7th Aug 20255411 PMAQI
8th Aug 20255412 AMAQI
8th Aug 2025501 AMAQI
8th Aug 2025492 AMAQI
8th Aug 2025443 AMAQI
8th Aug 2025364 AMAQI
8th Aug 2025355 AMAQI
23°C18/27°C
8th Aug 2025366 AMAQI
8th Aug 2025387 AMAQI
8th Aug 2025378 AMAQI
8th Aug 2025329 AMAQI
8th Aug 20252710 AMAQI
8th Aug 20252811 AMAQI
8th Aug 20253112 PMAQI
8th Aug 2025321 PMAQI
8th Aug 2025322 PMAQI
8th Aug 2025363 PMAQI
8th Aug 2025364 PMAQI
8th Aug 2025355 PMAQI
8th Aug 2025346 PMAQI
8th Aug 2025367 PMAQI
8th Aug 2025378 PMAQI
8th Aug 2025379 PMAQI
8th Aug 20253910 PMAQI
8th Aug 20253811 PMAQI
9th Aug 20253712 AMAQI
9th Aug 2025341 AMAQI
9th Aug 2025302 AMAQI
9th Aug 2025293 AMAQI
9th Aug 2025264 AMAQI
9th Aug 2025285 AMAQI
22°C17/27°C
9th Aug 2025316 AMAQI
9th Aug 2025327 AMAQI
9th Aug 2025298 AMAQI
9th Aug 2025289 AMAQI
9th Aug 20252810 AMAQI
9th Aug 20252611 AMAQI
9th Aug 20252612 PMAQI
9th Aug 2025241 PMAQI
9th Aug 2025252 PMAQI
9th Aug 2025273 PMAQI
9th Aug 2025274 PMAQI
9th Aug 2025275 PMAQI
9th Aug 2025266 PMAQI
9th Aug 2025267 PMAQI
9th Aug 2025288 PMAQI
9th Aug 2025279 PMAQI
9th Aug 20252610 PMAQI
9th Aug 20252811 PMAQI
10th Aug 20252812 AMAQI
10th Aug 2025271 AMAQI
10th Aug 2025272 AMAQI
10th Aug 2025283 AMAQI
10th Aug 2025324 AMAQI
10th Aug 2025285 AMAQI
22°C15/29°C
10th Aug 2025276 AMAQI
10th Aug 2025267 AMAQI
10th Aug 2025268 AMAQI
10th Aug 2025289 AMAQI
10th Aug 20252610 AMAQI
10th Aug 20252811 AMAQI
10th Aug 20253012 PMAQI
10th Aug 2025301 PMAQI
10th Aug 2025312 PMAQI
10th Aug 2025303 PMAQI
10th Aug 2025294 PMAQI
10th Aug 2025305 PMAQI
10th Aug 2025306 PMAQI
10th Aug 2025287 PMAQI
10th Aug 2025298 PMAQI
10th Aug 2025319 PMAQI
10th Aug 20253010 PMAQI
10th Aug 20253011 PMAQI
11th Aug 20252812 AMAQI
11th Aug 2025291 AMAQI
11th Aug 2025292 AMAQI
11th Aug 2025283 AMAQI
11th Aug 2025284 AMAQI
11th Aug 2025275 AMAQI
22°C13/30°C
11th Aug 2025266 AMAQI
11th Aug 2025277 AMAQI
11th Aug 2025308 AMAQI
11th Aug 2025289 AMAQI
11th Aug 20253010 AMAQI
11th Aug 20253311 AMAQI
11th Aug 20253212 PMAQI
11th Aug 2025321 PMAQI
11th Aug 2025302 PMAQI
11th Aug 2025303 PMAQI
11th Aug 2025304 PMAQI
11th Aug 2025305 PMAQI
11th Aug 2025286 PMAQI
11th Aug 2025307 PMAQI
11th Aug 2025298 PMAQI
11th Aug 2025299 PMAQI
11th Aug 20252710 PMAQI
11th Aug 20253011 PMAQI
12th Aug 20252712 AMAQI
12th Aug 2025271 AMAQI
12th Aug 2025282 AMAQI
12th Aug 2025273 AMAQI
12th Aug 2025274 AMAQI
12th Aug 2025265 AMAQI
24°C20/29°C
12th Aug 2025266 AMAQI
12th Aug 2025277 AMAQI
12th Aug 2025268 AMAQI
12th Aug 2025269 AMAQI
12th Aug 20252610 AMAQI
12th Aug 20252511 AMAQI
12th Aug 20252212 PMAQI
12th Aug 2025241 PMAQI
12th Aug 2025242 PMAQI
12th Aug 2025243 PMAQI
12th Aug 2025234 PMAQI
12th Aug 2025205 PMAQI
12th Aug 2025186 PMAQI
12th Aug 2025247 PMAQI
12th Aug 2025218 PMAQI
12th Aug 2025199 PMAQI
12th Aug 20251910 PMAQI
12th Aug 20252211 PMAQI
13th Aug 20252412 AMAQI
13th Aug 2025231 AMAQI
13th Aug 2025242 AMAQI
13th Aug 2025233 AMAQI
13th Aug 2025244 AMAQI
13th Aug 2025235 AMAQI
26°C21/31°C
13th Aug 2025226 AMAQI
13th Aug 2025227 AMAQI
13th Aug 2025238 AMAQI
13th Aug 2025259 AMAQI
13th Aug 20252810 AMAQI
13th Aug 20253011 AMAQI
13th Aug 20253212 PMAQI
13th Aug 2025341 PMAQI
13th Aug 2025352 PMAQI
13th Aug 2025363 PMAQI
13th Aug 2025344 PMAQI
13th Aug 2025385 PMAQI
13th Aug 2025366 PMAQI
13th Aug 2025267 PMAQI
13th Aug 2025288 PMAQI
13th Aug 2025289 PMAQI
13th Aug 20252610 PMAQI
13th Aug 20252611 PMAQI
14th Aug 20252412 AMAQI
14th Aug 2025221 AMAQI
14th Aug 2025232 AMAQI
26°C23/29°C
6 AM
1 PM
8 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 PM
38AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM
38AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 38), while the lowest AQI was between 6 AM to 8 PM (Avg. 38).
Night time
Avg. Highest Time
9 PM - 11 PM
39AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
1 AM - 5 AM
34AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 39), while the lowest AQI was between 1 AM to 5 AM (Avg. 34).
2025 Days Vs Air Quality
Blackwater NWR, Cambridge, Maryland, United States
2025
91%
128
9%
12
Total number of days with different AQI categories in last 226 days in 2025 (139 days remaining)
Good
128 DaysModerate
12 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 226 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
Blackwater NWR, Cambridge, Maryland, United States
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 March 2025
18AQI
18AQI
2nd March 2025
28AQI
28AQI
3rd March 2025
50AQI
50AQI
4th March 2025
30AQI
30AQI
5th March 2025
26AQI
26AQI
1st April 2025
19AQI
19AQI
2nd April 2025
22AQI
22AQI
3rd April 2025
30AQI
30AQI
4th April 2025
30AQI
30AQI
5th April 2025
34AQI
34AQI
6th April 2025
32AQI
32AQI
7th April 2025
17AQI
17AQI
8th April 2025
24AQI
24AQI
9th April 2025
15AQI
15AQI
10th April 2025
22AQI
22AQI
11th April 2025
20AQI
20AQI
12th April 2025
13AQI
13AQI
13th April 2025
18AQI
18AQI
14th April 2025
29AQI
29AQI
15th April 2025
37AQI
37AQI
16th April 2025
13AQI
13AQI
17th April 2025
18AQI
18AQI
18th April 2025
29AQI
29AQI
19th April 2025
42AQI
42AQI
20th April 2025
43AQI
43AQI
21st April 2025
22AQI
22AQI
22nd April 2025
37AQI
37AQI
23rd April 2025
32AQI
32AQI
24th April 2025
28AQI
28AQI
25th April 2025
23AQI
23AQI
26th April 2025
33AQI
33AQI
27th April 2025
14AQI
14AQI
28th April 2025
17AQI
17AQI
29th April 2025
24AQI
24AQI
30th April 2025
38AQI
38AQI
1st May 2025
43AQI
43AQI
2nd May 2025
45AQI
45AQI
3rd May 2025
41AQI
41AQI
4th May 2025
25AQI
25AQI
5th May 2025
23AQI
23AQI
6th May 2025
22AQI
22AQI
7th May 2025
21AQI
21AQI
8th May 2025
25AQI
25AQI
9th May 2025
22AQI
22AQI
10th May 2025
18AQI
18AQI
11th May 2025
26AQI
26AQI
12th May 2025
28AQI
28AQI
13th May 2025
22AQI
22AQI
14th May 2025
30AQI
30AQI
15th May 2025
24AQI
24AQI
16th May 2025
45AQI
45AQI
17th May 2025
28AQI
28AQI
18th May 2025
18AQI
18AQI
19th May 2025
20AQI
20AQI
20th May 2025
18AQI
18AQI
21st May 2025
16AQI
16AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
16AQI
16AQI
24th May 2025
14AQI
14AQI
25th May 2025
16AQI
16AQI
26th May 2025
18AQI
18AQI
27th May 2025
23AQI
23AQI
28th May 2025
15AQI
15AQI
29th May 2025
18AQI
18AQI
30th May 2025
26AQI
26AQI
31st May 2025
29AQI
29AQI
1st June 2025
18AQI
18AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
24AQI
24AQI
4th June 2025
33AQI
33AQI
5th June 2025
35AQI
35AQI
6th June 2025
31AQI
31AQI
7th June 2025
25AQI
25AQI
8th June 2025
31AQI
31AQI
9th June 2025
26AQI
26AQI
10th June 2025
34AQI
34AQI
11th June 2025
48AQI
48AQI
12th June 2025
58AQI
58AQI
13th June 2025
57AQI
57AQI
14th June 2025
50AQI
50AQI
15th June 2025
47AQI
47AQI
16th June 2025
37AQI
37AQI
17th June 2025
23AQI
23AQI
18th June 2025
26AQI
26AQI
19th June 2025
27AQI
27AQI
20th June 2025
26AQI
26AQI
21st June 2025
39AQI
39AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
54AQI
54AQI
24th June 2025
59AQI
59AQI
25th June 2025
60AQI
60AQI
26th June 2025
54AQI
54AQI
27th June 2025
46AQI
46AQI
28th June 2025
32AQI
32AQI
29th June 2025
48AQI
48AQI
30th June 2025
44AQI
44AQI
1st July 2025
42AQI
42AQI
2nd July 2025
24AQI
24AQI
3rd July 2025
34AQI
34AQI
4th July 2025
51AQI
51AQI
5th July 2025
60AQI
60AQI
6th July 2025
47AQI
47AQI
7th July 2025
33AQI
33AQI
8th July 2025
38AQI
38AQI
9th July 2025
31AQI
31AQI
10th July 2025
25AQI
25AQI
11th July 2025
30AQI
30AQI
12th July 2025
31AQI
31AQI
13th July 2025
27AQI
27AQI
14th July 2025
24AQI
24AQI
15th July 2025
20AQI
20AQI
16th July 2025
28AQI
28AQI
17th July 2025
28AQI
28AQI
18th July 2025
30AQI
30AQI
19th July 2025
28AQI
28AQI
20th July 2025
21AQI
21AQI
21st July 2025
29AQI
29AQI
22nd July 2025
50AQI
50AQI
23rd July 2025
49AQI
49AQI
24th July 2025
32AQI
32AQI
25th July 2025
37AQI
37AQI
26th July 2025
44AQI
44AQI
27th July 2025
51AQI
51AQI
28th July 2025
27AQI
27AQI
29th July 2025
42AQI
42AQI
30th July 2025
45AQI
45AQI
31st July 2025
40AQI
40AQI
1st August 2025
29AQI
29AQI
2nd August 2025
37AQI
37AQI
3rd August 2025
34AQI
34AQI
4th August 2025
45AQI
45AQI
5th August 2025
61AQI
61AQI
6th August 2025
68AQI
68AQI
7th August 2025
56AQI
56AQI
8th August 2025
37AQI
37AQI
9th August 2025
28AQI
28AQI
10th August 2025
29AQI
29AQI
11th August 2025
29AQI
29AQI
12th August 2025
24AQI
24AQI
13th August 2025
26AQI
26AQI
30AQI
26AQI
24AQI
39AQI
35AQI
39AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
5
30
31
24
6
28
3
10
3
128
12
Highest AQI recorded in
August39AQI
Lowest AQI recorded in
May24AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
32AQILeast Polluted Year Recorded
2025(Avg.)
32AQIBlackwater NWR's annual 2025 AQI (32) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
