Century Compound, Zhangjiakou, Hebei, China 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
Century Compound, Zhangjiakou, Hebei, China
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Aug 2023
114AQILowest AQI recorded on
12th Aug 2024
30AQISame Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 43 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Century Compound, Zhangjiakou, Hebei, China
AQI
Day
Night
.
5 AM12th Aug 2026
7 PM
4 AM13th Aug 2026
Day time
Avg. Highest Time
8AM12th Aug
57AQI
Avg. Lowest Time
4PM12th Aug
8AQI
Night time
Avg. Highest Time
10PM12th Aug
60AQI
Avg. Lowest Time
1AM13th Aug
23AQI
In the last 24 hours,
Century Compound's AQI reached its highest point of 60 at 10 PM during the Night, while the lowest point, 8, was recorded at 4 PM during the Day between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Century Compound, Zhangjiakou, Hebei, China
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
Day
Night
15th Jul 2026605 AMAQI
15th Jul 2026526 AMAQI
15th Jul 2026297 AMAQI
15th Jul 2026408 AMAQI
15th Jul 2026359 AMAQI
15th Jul 20264010 AMAQI
15th Jul 20264011 AMAQI
15th Jul 20265512 PMAQI
15th Jul 2026621 PMAQI
15th Jul 2026602 PMAQI
15th Jul 2026623 PMAQI
15th Jul 2026584 PMAQI
15th Jul 2026405 PMAQI
15th Jul 2026236 PMAQI
15th Jul 2026277 PMAQI
15th Jul 2026328 PMAQI
15th Jul 2026369 PMAQI
15th Jul 20264410 PMAQI
15th Jul 20265111 PMAQI
16th Jul 20264712 AMAQI
16th Jul 2026361 AMAQI
16th Jul 2026272 AMAQI
16th Jul 2026273 AMAQI
16th Jul 2026314 AMAQI
25°C18/34°C
16th Jul 2026275 AMAQI
16th Jul 2026256 AMAQI
16th Jul 2026317 AMAQI
16th Jul 2026328 AMAQI
16th Jul 2026229 AMAQI
16th Jul 20263010 AMAQI
16th Jul 20262811 AMAQI
16th Jul 20263012 PMAQI
16th Jul 2026301 PMAQI
16th Jul 2026342 PMAQI
16th Jul 2026483 PMAQI
16th Jul 2026524 PMAQI
16th Jul 2026385 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026257 PMAQI
16th Jul 2026338 PMAQI
16th Jul 2026389 PMAQI
16th Jul 20264710 PMAQI
16th Jul 20265411 PMAQI
17th Jul 20265112 AMAQI
17th Jul 2026541 AMAQI
17th Jul 2026642 AMAQI
17th Jul 2026693 AMAQI
17th Jul 2026684 AMAQI
25°C20/31°C
17th Jul 2026625 AMAQI
17th Jul 2026496 AMAQI
17th Jul 2026517 AMAQI
17th Jul 2026628 AMAQI
17th Jul 2026629 AMAQI
17th Jul 20264510 AMAQI
17th Jul 20263611 AMAQI
17th Jul 20264912 PMAQI
17th Jul 2026461 PMAQI
17th Jul 2026282 PMAQI
17th Jul 2026253 PMAQI
17th Jul 2026444 PMAQI
17th Jul 2026505 PMAQI
17th Jul 2026476 PMAQI
17th Jul 2026527 PMAQI
17th Jul 2026588 PMAQI
17th Jul 2026679 PMAQI
17th Jul 20267210 PMAQI
17th Jul 20267411 PMAQI
18th Jul 20264912 AMAQI
18th Jul 2026401 AMAQI
18th Jul 2026542 AMAQI
18th Jul 2026533 AMAQI
18th Jul 2026514 AMAQI
24°C19/30°C
18th Jul 2026405 AMAQI
18th Jul 2026466 AMAQI
18th Jul 2026647 AMAQI
18th Jul 2026648 AMAQI
18th Jul 2026589 AMAQI
18th Jul 20264310 AMAQI
18th Jul 20264411 AMAQI
18th Jul 20266212 PMAQI
18th Jul 2026761 PMAQI
18th Jul 2026762 PMAQI
18th Jul 2026533 PMAQI
18th Jul 2026234 PMAQI
18th Jul 2026215 PMAQI
18th Jul 2026126 PMAQI
18th Jul 2026257 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026179 PMAQI
18th Jul 20263110 PMAQI
18th Jul 20265111 PMAQI
19th Jul 20265112 AMAQI
19th Jul 2026311 AMAQI
19th Jul 2026312 AMAQI
19th Jul 2026463 AMAQI
19th Jul 2026534 AMAQI
22°C19/28°C
19th Jul 2026545 AMAQI
19th Jul 2026426 AMAQI
19th Jul 2026277 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026259 AMAQI
19th Jul 20263810 AMAQI
19th Jul 20266011 AMAQI
19th Jul 20264912 PMAQI
19th Jul 2026421 PMAQI
19th Jul 2026482 PMAQI
19th Jul 2026483 PMAQI
19th Jul 2026544 PMAQI
19th Jul 2026565 PMAQI
19th Jul 2026656 PMAQI
19th Jul 2026547 PMAQI
19th Jul 2026638 PMAQI
19th Jul 2026689 PMAQI
19th Jul 20267610 PMAQI
19th Jul 20268311 PMAQI
20th Jul 20267012 AMAQI
20th Jul 2026641 AMAQI
20th Jul 2026622 AMAQI
20th Jul 2026673 AMAQI
20th Jul 2026704 AMAQI
24°C17/32°C
20th Jul 2026885 AMAQI
20th Jul 2026786 AMAQI
20th Jul 2026737 AMAQI
20th Jul 2026808 AMAQI
20th Jul 2026629 AMAQI
20th Jul 20266010 AMAQI
20th Jul 20264511 AMAQI
20th Jul 20264012 PMAQI
20th Jul 2026481 PMAQI
20th Jul 2026342 PMAQI
20th Jul 2026583 PMAQI
20th Jul 2026754 PMAQI
20th Jul 2026855 PMAQI
20th Jul 2026786 PMAQI
20th Jul 2026977 PMAQI
20th Jul 2026908 PMAQI
20th Jul 2026969 PMAQI
20th Jul 20267610 PMAQI
20th Jul 20263411 PMAQI
21st Jul 20262912 AMAQI
21st Jul 2026271 AMAQI
21st Jul 2026272 AMAQI
21st Jul 2026253 AMAQI
21st Jul 2026124 AMAQI
22°C18/29°C
21st Jul 2026235 AMAQI
21st Jul 2026276 AMAQI
21st Jul 2026177 AMAQI
21st Jul 2026278 AMAQI
21st Jul 2026339 AMAQI
21st Jul 20263110 AMAQI
21st Jul 20265812 PMAQI
21st Jul 2026861 PMAQI
21st Jul 2026692 PMAQI
21st Jul 2026583 PMAQI
21st Jul 2026654 PMAQI
21st Jul 2026865 PMAQI
21st Jul 20261146 PMAQI
21st Jul 20261117 PMAQI
21st Jul 2026908 PMAQI
21st Jul 2026929 PMAQI
21st Jul 20268010 PMAQI
21st Jul 20267611 PMAQI
22nd Jul 20267112 AMAQI
22nd Jul 2026741 AMAQI
22nd Jul 2026682 AMAQI
22nd Jul 2026683 AMAQI
22nd Jul 2026384 AMAQI
22°C15/30°C
22nd Jul 2026605 AMAQI
22nd Jul 2026336 AMAQI
22nd Jul 2026177 AMAQI
22nd Jul 2026368 AMAQI
22nd Jul 2026579 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264212 PMAQI
22nd Jul 2026261 PMAQI
22nd Jul 2026332 PMAQI
22nd Jul 2026543 PMAQI
22nd Jul 2026504 PMAQI
22nd Jul 2026735 PMAQI
22nd Jul 2026426 PMAQI
22nd Jul 2026627 PMAQI
22nd Jul 2026808 PMAQI
22nd Jul 2026879 PMAQI
22nd Jul 20267310 PMAQI
22nd Jul 20269211 PMAQI
23rd Jul 20269012 AMAQI
23rd Jul 2026941 AMAQI
23rd Jul 2026732 AMAQI
23rd Jul 2026793 AMAQI
23rd Jul 2026524 AMAQI
23°C17/29°C
23rd Jul 2026245 AMAQI
23rd Jul 2026516 AMAQI
23rd Jul 2026507 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026529 AMAQI
23rd Jul 20266210 AMAQI
23rd Jul 20267411 AMAQI
23rd Jul 20267412 PMAQI
23rd Jul 2026581 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026373 PMAQI
23rd Jul 2026144 PMAQI
23rd Jul 2026335 PMAQI
23rd Jul 2026546 PMAQI
23rd Jul 2026537 PMAQI
23rd Jul 2026698 PMAQI
23rd Jul 2026729 PMAQI
23rd Jul 20265710 PMAQI
23rd Jul 20265311 PMAQI
24th Jul 20266612 AMAQI
24th Jul 2026691 AMAQI
24th Jul 2026662 AMAQI
24th Jul 2026703 AMAQI
24th Jul 2026634 AMAQI
21°C17/28°C
24th Jul 2026655 AMAQI
24th Jul 2026686 AMAQI
24th Jul 2026517 AMAQI
24th Jul 2026538 AMAQI
24th Jul 2026649 AMAQI
24th Jul 20265410 AMAQI
24th Jul 20267511 AMAQI
24th Jul 20267112 PMAQI
24th Jul 2026811 PMAQI
24th Jul 2026742 PMAQI
24th Jul 2026513 PMAQI
24th Jul 2026584 PMAQI
24th Jul 2026625 PMAQI
24th Jul 2026596 PMAQI
24th Jul 2026607 PMAQI
24th Jul 2026598 PMAQI
24th Jul 2026829 PMAQI
24th Jul 202610510 PMAQI
24th Jul 20267011 PMAQI
25th Jul 20268412 AMAQI
25th Jul 2026651 AMAQI
25th Jul 2026782 AMAQI
25th Jul 2026653 AMAQI
25th Jul 2026824 AMAQI
24°C18/30°C
25th Jul 2026765 AMAQI
25th Jul 2026626 AMAQI
25th Jul 2026847 AMAQI
25th Jul 2026428 AMAQI
25th Jul 2026649 AMAQI
25th Jul 20264810 AMAQI
25th Jul 20266711 AMAQI
25th Jul 20268312 PMAQI
25th Jul 2026541 PMAQI
25th Jul 2026732 PMAQI
25th Jul 2026663 PMAQI
25th Jul 2026384 PMAQI
25th Jul 2026335 PMAQI
25th Jul 2026386 PMAQI
25th Jul 2026627 PMAQI
25th Jul 2026628 PMAQI
25th Jul 2026809 PMAQI
25th Jul 20269810 PMAQI
25th Jul 20267611 PMAQI
26th Jul 20267212 AMAQI
26th Jul 20261061 AMAQI
26th Jul 20261052 AMAQI
26th Jul 2026643 AMAQI
26th Jul 2026724 AMAQI
24°C18/30°C
26th Jul 2026705 AMAQI
26th Jul 20261046 AMAQI
26th Jul 2026907 AMAQI
26th Jul 2026568 AMAQI
26th Jul 2026649 AMAQI
26th Jul 20268510 AMAQI
26th Jul 20267111 AMAQI
26th Jul 20269012 PMAQI
26th Jul 2026821 PMAQI
26th Jul 2026842 PMAQI
26th Jul 2026743 PMAQI
26th Jul 2026584 PMAQI
26th Jul 2026555 PMAQI
26th Jul 2026586 PMAQI
26th Jul 2026667 PMAQI
26th Jul 2026518 PMAQI
26th Jul 2026629 PMAQI
26th Jul 20267810 PMAQI
26th Jul 20269111 PMAQI
27th Jul 20269812 AMAQI
27th Jul 2026741 AMAQI
27th Jul 2026712 AMAQI
27th Jul 2026803 AMAQI
27th Jul 2026704 AMAQI
25°C20/31°C
27th Jul 2026665 AMAQI
27th Jul 2026796 AMAQI
27th Jul 2026687 AMAQI
27th Jul 2026578 AMAQI
27th Jul 2026589 AMAQI
27th Jul 20268610 AMAQI
27th Jul 202610011 AMAQI
27th Jul 20268112 PMAQI
27th Jul 2026881 PMAQI
27th Jul 2026642 PMAQI
27th Jul 2026923 PMAQI
27th Jul 2026734 PMAQI
27th Jul 2026495 PMAQI
27th Jul 2026546 PMAQI
27th Jul 2026767 PMAQI
27th Jul 2026658 PMAQI
27th Jul 2026959 PMAQI
27th Jul 202610110 PMAQI
27th Jul 20268811 PMAQI
28th Jul 20267812 AMAQI
28th Jul 2026801 AMAQI
28th Jul 2026842 AMAQI
28th Jul 2026823 AMAQI
28th Jul 2026864 AMAQI
25°C19/32°C
28th Jul 2026905 AMAQI
28th Jul 2026876 AMAQI
28th Jul 2026887 AMAQI
28th Jul 2026788 AMAQI
28th Jul 2026909 AMAQI
28th Jul 20268310 AMAQI
28th Jul 20267811 AMAQI
28th Jul 20268112 PMAQI
28th Jul 2026551 PMAQI
28th Jul 2026682 PMAQI
28th Jul 2026623 PMAQI
28th Jul 2026604 PMAQI
28th Jul 2026565 PMAQI
28th Jul 2026626 PMAQI
28th Jul 2026657 PMAQI
28th Jul 2026678 PMAQI
28th Jul 2026659 PMAQI
28th Jul 20268210 PMAQI
28th Jul 20269011 PMAQI
29th Jul 20267412 AMAQI
29th Jul 2026571 AMAQI
29th Jul 2026702 AMAQI
29th Jul 2026763 AMAQI
29th Jul 2026744 AMAQI
26°C20/32°C
29th Jul 2026665 AMAQI
29th Jul 2026586 AMAQI
29th Jul 2026847 AMAQI
29th Jul 2026758 AMAQI
29th Jul 2026749 AMAQI
29th Jul 20267310 AMAQI
29th Jul 20267111 AMAQI
29th Jul 20266412 PMAQI
29th Jul 2026481 PMAQI
29th Jul 2026532 PMAQI
29th Jul 2026573 PMAQI
29th Jul 2026574 PMAQI
29th Jul 2026605 PMAQI
29th Jul 2026816 PMAQI
29th Jul 2026867 PMAQI
29th Jul 2026878 PMAQI
29th Jul 2026719 PMAQI
29th Jul 20266610 PMAQI
29th Jul 20266611 PMAQI
30th Jul 20267412 AMAQI
30th Jul 2026721 AMAQI
30th Jul 2026622 AMAQI
30th Jul 2026683 AMAQI
30th Jul 2026764 AMAQI
26°C20/32°C
30th Jul 2026645 AMAQI
30th Jul 2026586 AMAQI
30th Jul 2026627 AMAQI
30th Jul 2026648 AMAQI
30th Jul 2026579 AMAQI
30th Jul 20265710 AMAQI
30th Jul 20265711 AMAQI
30th Jul 20265712 PMAQI
30th Jul 2026561 PMAQI
30th Jul 2026582 PMAQI
30th Jul 2026503 PMAQI
30th Jul 2026554 PMAQI
30th Jul 2026485 PMAQI
30th Jul 2026406 PMAQI
30th Jul 2026317 PMAQI
30th Jul 2026678 PMAQI
30th Jul 2026689 PMAQI
30th Jul 20267410 PMAQI
30th Jul 20267911 PMAQI
31st Jul 20267412 AMAQI
31st Jul 2026681 AMAQI
31st Jul 2026662 AMAQI
31st Jul 2026653 AMAQI
31st Jul 2026634 AMAQI
26°C21/33°C
31st Jul 2026645 AMAQI
31st Jul 2026626 AMAQI
31st Jul 2026677 AMAQI
31st Jul 2026628 AMAQI
31st Jul 2026629 AMAQI
31st Jul 20266910 AMAQI
31st Jul 20266411 AMAQI
31st Jul 20266012 PMAQI
31st Jul 2026711 PMAQI
31st Jul 2026732 PMAQI
31st Jul 2026823 PMAQI
31st Jul 2026754 PMAQI
31st Jul 2026695 PMAQI
31st Jul 2026816 PMAQI
31st Jul 2026767 PMAQI
31st Jul 2026678 PMAQI
31st Jul 2026579 PMAQI
31st Jul 20265510 PMAQI
31st Jul 20266511 PMAQI
1st Aug 20266812 AMAQI
1st Aug 2026681 AMAQI
1st Aug 2026592 AMAQI
1st Aug 2026513 AMAQI
1st Aug 2026544 AMAQI
26°C21/33°C
1st Aug 2026495 AMAQI
1st Aug 2026586 AMAQI
1st Aug 2026597 AMAQI
1st Aug 2026678 AMAQI
1st Aug 2026409 AMAQI
1st Aug 20263310 AMAQI
1st Aug 20263611 AMAQI
1st Aug 20264612 PMAQI
1st Aug 2026641 PMAQI
1st Aug 2026672 PMAQI
1st Aug 2026783 PMAQI
1st Aug 2026784 PMAQI
1st Aug 2026705 PMAQI
1st Aug 2026866 PMAQI
1st Aug 2026907 PMAQI
1st Aug 2026888 PMAQI
1st Aug 2026759 PMAQI
1st Aug 20265810 PMAQI
1st Aug 20265411 PMAQI
2nd Aug 20265912 AMAQI
2nd Aug 2026761 AMAQI
2nd Aug 20261002 AMAQI
2nd Aug 2026863 AMAQI
2nd Aug 2026664 AMAQI
26°C20/33°C
2nd Aug 2026565 AMAQI
2nd Aug 2026566 AMAQI
2nd Aug 2026727 AMAQI
2nd Aug 2026828 AMAQI
2nd Aug 2026709 AMAQI
2nd Aug 20269310 AMAQI
2nd Aug 202610811 AMAQI
2nd Aug 20268212 PMAQI
2nd Aug 2026461 PMAQI
2nd Aug 2026722 PMAQI
2nd Aug 2026763 PMAQI
2nd Aug 2026764 PMAQI
2nd Aug 2026825 PMAQI
2nd Aug 2026666 PMAQI
2nd Aug 2026607 PMAQI
2nd Aug 2026808 PMAQI
2nd Aug 2026869 PMAQI
2nd Aug 20267210 PMAQI
2nd Aug 20268311 PMAQI
3rd Aug 20267412 AMAQI
3rd Aug 2026681 AMAQI
3rd Aug 2026732 AMAQI
3rd Aug 2026693 AMAQI
3rd Aug 2026684 AMAQI
24°C21/29°C
3rd Aug 2026545 AMAQI
3rd Aug 2026336 AMAQI
3rd Aug 2026447 AMAQI
3rd Aug 2026718 AMAQI
3rd Aug 2026699 AMAQI
3rd Aug 20266610 AMAQI
3rd Aug 20268111 AMAQI
3rd Aug 20266512 PMAQI
3rd Aug 2026631 PMAQI
3rd Aug 2026512 PMAQI
3rd Aug 2026233 PMAQI
3rd Aug 2026254 PMAQI
3rd Aug 2026365 PMAQI
3rd Aug 2026406 PMAQI
3rd Aug 2026477 PMAQI
3rd Aug 2026308 PMAQI
3rd Aug 2026209 PMAQI
3rd Aug 20264210 PMAQI
3rd Aug 20264211 PMAQI
4th Aug 20264212 AMAQI
4th Aug 2026521 AMAQI
4th Aug 2026462 AMAQI
4th Aug 2026423 AMAQI
4th Aug 2026454 AMAQI
22°C20/26°C
4th Aug 2026385 AMAQI
4th Aug 2026406 AMAQI
4th Aug 2026607 AMAQI
4th Aug 2026688 AMAQI
4th Aug 2026669 AMAQI
4th Aug 20267810 AMAQI
4th Aug 20265411 AMAQI
4th Aug 20266012 PMAQI
4th Aug 2026401 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026323 PMAQI
4th Aug 2026424 PMAQI
4th Aug 2026465 PMAQI
4th Aug 2026466 PMAQI
4th Aug 2026447 PMAQI
4th Aug 2026528 PMAQI
4th Aug 2026609 PMAQI
4th Aug 20267410 PMAQI
4th Aug 20267611 PMAQI
5th Aug 20266512 AMAQI
5th Aug 2026601 AMAQI
5th Aug 2026602 AMAQI
5th Aug 2026763 AMAQI
5th Aug 2026764 AMAQI
21°C19/24°C
5th Aug 2026545 AMAQI
5th Aug 2026516 AMAQI
5th Aug 2026467 AMAQI
5th Aug 2026528 AMAQI
5th Aug 2026319 AMAQI
5th Aug 20265010 AMAQI
5th Aug 20266211 AMAQI
5th Aug 20266212 PMAQI
5th Aug 2026621 PMAQI
5th Aug 2026712 PMAQI
5th Aug 2026813 PMAQI
5th Aug 2026534 PMAQI
5th Aug 2026695 PMAQI
5th Aug 2026726 PMAQI
5th Aug 2026647 PMAQI
5th Aug 2026548 PMAQI
5th Aug 2026679 PMAQI
5th Aug 20267310 PMAQI
5th Aug 202610411 PMAQI
6th Aug 20266512 AMAQI
6th Aug 2026531 AMAQI
6th Aug 2026512 AMAQI
6th Aug 2026513 AMAQI
6th Aug 2026664 AMAQI
22°C19/28°C
6th Aug 2026445 AMAQI
6th Aug 2026446 AMAQI
6th Aug 2026387 AMAQI
6th Aug 2026518 AMAQI
6th Aug 2026519 AMAQI
6th Aug 20265110 AMAQI
6th Aug 20265311 AMAQI
6th Aug 20264412 PMAQI
6th Aug 2026501 PMAQI
6th Aug 2026512 PMAQI
6th Aug 2026573 PMAQI
6th Aug 2026544 PMAQI
6th Aug 2026535 PMAQI
6th Aug 2026536 PMAQI
6th Aug 2026567 PMAQI
6th Aug 2026628 PMAQI
6th Aug 2026669 PMAQI
6th Aug 20266010 PMAQI
6th Aug 20268111 PMAQI
7th Aug 20267612 AMAQI
7th Aug 2026721 AMAQI
7th Aug 2026942 AMAQI
7th Aug 2026543 AMAQI
7th Aug 2026464 AMAQI
25°C19/31°C
7th Aug 2026365 AMAQI
7th Aug 2026446 AMAQI
7th Aug 2026477 AMAQI
7th Aug 2026528 AMAQI
7th Aug 2026489 AMAQI
7th Aug 20264910 AMAQI
7th Aug 20264911 AMAQI
7th Aug 20264212 PMAQI
7th Aug 2026581 PMAQI
7th Aug 2026562 PMAQI
7th Aug 2026463 PMAQI
7th Aug 2026484 PMAQI
7th Aug 2026285 PMAQI
7th Aug 2026446 PMAQI
7th Aug 2026507 PMAQI
7th Aug 2026668 PMAQI
7th Aug 2026599 PMAQI
7th Aug 20263210 PMAQI
7th Aug 20264211 PMAQI
8th Aug 20263612 AMAQI
8th Aug 2026311 AMAQI
8th Aug 2026522 AMAQI
8th Aug 2026423 AMAQI
8th Aug 2026514 AMAQI
25°C21/32°C
8th Aug 2026685 AMAQI
8th Aug 2026316 AMAQI
8th Aug 2026317 AMAQI
8th Aug 2026468 AMAQI
8th Aug 2026569 AMAQI
8th Aug 20264010 AMAQI
8th Aug 20263811 AMAQI
8th Aug 20266612 PMAQI
8th Aug 2026971 PMAQI
8th Aug 2026812 PMAQI
8th Aug 2026483 PMAQI
8th Aug 2026484 PMAQI
8th Aug 2026575 PMAQI
8th Aug 2026466 PMAQI
8th Aug 2026737 PMAQI
8th Aug 2026718 PMAQI
8th Aug 2026939 PMAQI
8th Aug 20267910 PMAQI
8th Aug 20267211 PMAQI
9th Aug 20267112 AMAQI
9th Aug 2026821 AMAQI
9th Aug 2026622 AMAQI
9th Aug 2026573 AMAQI
9th Aug 2026594 AMAQI
23°C20/28°C
9th Aug 2026645 AMAQI
9th Aug 2026626 AMAQI
9th Aug 2026547 AMAQI
9th Aug 2026798 AMAQI
9th Aug 2026769 AMAQI
9th Aug 20268610 AMAQI
9th Aug 20267411 AMAQI
9th Aug 20266512 PMAQI
9th Aug 2026531 PMAQI
9th Aug 2026762 PMAQI
9th Aug 2026523 PMAQI
9th Aug 2026384 PMAQI
9th Aug 2026525 PMAQI
9th Aug 2026766 PMAQI
9th Aug 2026727 PMAQI
9th Aug 2026928 PMAQI
9th Aug 2026909 PMAQI
9th Aug 202610910 PMAQI
9th Aug 202610811 PMAQI
10th Aug 20268312 AMAQI
10th Aug 2026841 AMAQI
10th Aug 2026782 AMAQI
10th Aug 2026813 AMAQI
10th Aug 2026744 AMAQI
23°C19/28°C
10th Aug 2026925 AMAQI
10th Aug 2026806 AMAQI
10th Aug 2026807 AMAQI
10th Aug 20261118 AMAQI
10th Aug 20261089 AMAQI
10th Aug 20269810 AMAQI
10th Aug 20268711 AMAQI
10th Aug 20268712 PMAQI
10th Aug 2026581 PMAQI
10th Aug 2026692 PMAQI
10th Aug 2026853 PMAQI
10th Aug 2026854 PMAQI
10th Aug 2026655 PMAQI
10th Aug 2026606 PMAQI
10th Aug 2026877 PMAQI
10th Aug 2026948 PMAQI
10th Aug 20261149 PMAQI
10th Aug 202610910 PMAQI
10th Aug 202610411 PMAQI
11th Aug 20269212 AMAQI
11th Aug 2026851 AMAQI
11th Aug 2026882 AMAQI
11th Aug 2026733 AMAQI
11th Aug 2026874 AMAQI
23°C18/30°C
11th Aug 20261025 AMAQI
11th Aug 20261026 AMAQI
11th Aug 2026877 AMAQI
11th Aug 20261048 AMAQI
11th Aug 2026839 AMAQI
11th Aug 20269610 AMAQI
11th Aug 20268711 AMAQI
11th Aug 20268312 PMAQI
11th Aug 2026871 PMAQI
11th Aug 2026642 PMAQI
11th Aug 2026623 PMAQI
11th Aug 2026594 PMAQI
11th Aug 2026715 PMAQI
11th Aug 2026946 PMAQI
11th Aug 2026387 PMAQI
11th Aug 2026538 PMAQI
11th Aug 2026859 PMAQI
11th Aug 20267210 PMAQI
11th Aug 20267011 PMAQI
12th Aug 20268312 AMAQI
12th Aug 2026651 AMAQI
12th Aug 2026462 AMAQI
12th Aug 2026423 AMAQI
12th Aug 2026294 AMAQI
23°C18/30°C
12th Aug 2026365 AMAQI
12th Aug 2026406 AMAQI
12th Aug 2026487 AMAQI
12th Aug 2026578 AMAQI
12th Aug 2026319 AMAQI
12th Aug 20262710 AMAQI
12th Aug 20262911 AMAQI
12th Aug 20265212 PMAQI
12th Aug 2026291 PMAQI
12th Aug 2026312 PMAQI
12th Aug 2026253 PMAQI
12th Aug 202684 PMAQI
12th Aug 2026175 PMAQI
12th Aug 2026176 PMAQI
12th Aug 2026107 PMAQI
12th Aug 2026238 PMAQI
12th Aug 2026519 PMAQI
12th Aug 20266010 PMAQI
12th Aug 20262911 PMAQI
13th Aug 20262912 AMAQI
13th Aug 2026231 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026533 AMAQI
13th Aug 2026584 AMAQI
20°C18/24°C
13th Aug 2026465 AMAQI
5 AM13th Aug 2026656 AMAQI
13th Aug 2026407 AMAQI
13th Aug 2026118 AMAQI
13th Aug 2026239 AMAQI
13th Aug 20261710 AMAQI
13th Aug 20261511 AMAQI
13th Aug 20262912 PMAQI
12 PM13th Aug 2026271 PMAQI
13th Aug 2026542 PMAQI
13th Aug 2026513 PMAQI
13th Aug 2026334 PMAQI
13th Aug 2026585 PMAQI
13th Aug 2026546 PMAQI
13th Aug 2026407 PMAQI
7 PM13th Aug 2026728 PMAQI
13th Aug 2026769 PMAQI
13th Aug 20266610 PMAQI
13th Aug 20266511 PMAQI
12 AM
4 AM
21°C15/27°C
Day time
Avg. Highest Time
12 PM
61AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
4 PM
52AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 12 PM (Avg. 61), while the lowest AQI was between 4 PM to 4 PM (Avg. 52).
Night time
Avg. Highest Time
9 PM - 11 PM
71AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 4 AM
61AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 71), while the lowest AQI was between 3 AM to 4 AM (Avg. 61).
2026 Days Vs Air Quality
Century Compound, Zhangjiakou, Hebei, China
2026
43%
97
48%
109
8%
19
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Good
97 DaysModerate
109 DaysPoor
19 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 43%
Health Risk Level:
Significant
In 2026, 43% of 225 days were within WHO’s safe air quality limits, and 57% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Century Compound, Zhangjiakou, Hebei, China
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
35AQI (US)
35AQI (US)
2nd January 2026
39AQI (US)
39AQI (US)
3rd January 2026
49AQI (US)
49AQI (US)
4th January 2026
34AQI (US)
34AQI (US)
5th January 2026
35AQI (US)
35AQI (US)
6th January 2026
49AQI (US)
49AQI (US)
7th January 2026
45AQI (US)
45AQI (US)
8th January 2026
92AQI (US)
92AQI (US)
9th January 2026
108AQI (US)
108AQI (US)
10th January 2026
40AQI (US)
40AQI (US)
11th January 2026
42AQI (US)
42AQI (US)
12th January 2026
65AQI (US)
65AQI (US)
13th January 2026
50AQI (US)
50AQI (US)
14th January 2026
123AQI (US)
123AQI (US)
15th January 2026
123AQI (US)
123AQI (US)
16th January 2026
67AQI (US)
67AQI (US)
17th January 2026
67AQI (US)
67AQI (US)
18th January 2026
65AQI (US)
65AQI (US)
19th January 2026
24AQI (US)
24AQI (US)
20th January 2026
22AQI (US)
22AQI (US)
21st January 2026
34AQI (US)
34AQI (US)
22nd January 2026
49AQI (US)
49AQI (US)
23rd January 2026
45AQI (US)
45AQI (US)
24th January 2026
41AQI (US)
41AQI (US)
25th January 2026
62AQI (US)
62AQI (US)
26th January 2026
74AQI (US)
74AQI (US)
27th January 2026
39AQI (US)
39AQI (US)
28th January 2026
81AQI (US)
81AQI (US)
29th January 2026
67AQI (US)
67AQI (US)
30th January 2026
106AQI (US)
106AQI (US)
31st January 2026
35AQI (US)
35AQI (US)
1st February 2026
33AQI (US)
33AQI (US)
2nd February 2026
41AQI (US)
41AQI (US)
3rd February 2026
71AQI (US)
71AQI (US)
4th February 2026
99AQI (US)
99AQI (US)
5th February 2026
38AQI (US)
38AQI (US)
6th February 2026
16AQI (US)
16AQI (US)
7th February 2026
28AQI (US)
28AQI (US)
8th February 2026
37AQI (US)
37AQI (US)
9th February 2026
85AQI (US)
85AQI (US)
10th February 2026
85AQI (US)
85AQI (US)
11th February 2026
54AQI (US)
54AQI (US)
12th February 2026
72AQI (US)
72AQI (US)
13th February 2026
78AQI (US)
78AQI (US)
14th February 2026
75AQI (US)
75AQI (US)
15th February 2026
25AQI (US)
25AQI (US)
16th February 2026
31AQI (US)
31AQI (US)
17th February 2026
55AQI (US)
55AQI (US)
18th February 2026
44AQI (US)
44AQI (US)
19th February 2026
67AQI (US)
67AQI (US)
20th February 2026
74AQI (US)
74AQI (US)
21st February 2026
102AQI (US)
102AQI (US)
22nd February 2026
50AQI (US)
50AQI (US)
23rd February 2026
43AQI (US)
43AQI (US)
24th February 2026
88AQI (US)
88AQI (US)
25th February 2026
118AQI (US)
118AQI (US)
26th February 2026
81AQI (US)
81AQI (US)
27th February 2026
114AQI (US)
114AQI (US)
28th February 2026
100AQI (US)
100AQI (US)
1st March 2026
145AQI (US)
145AQI (US)
2nd March 2026
150AQI (US)
150AQI (US)
3rd March 2026
89AQI (US)
89AQI (US)
4th March 2026
87AQI (US)
87AQI (US)
5th March 2026
75AQI (US)
75AQI (US)
6th March 2026
36AQI (US)
36AQI (US)
7th March 2026
69AQI (US)
69AQI (US)
8th March 2026
92AQI (US)
92AQI (US)
9th March 2026
34AQI (US)
34AQI (US)
10th March 2026
63AQI (US)
63AQI (US)
11th March 2026
31AQI (US)
31AQI (US)
12th March 2026
82AQI (US)
82AQI (US)
13th March 2026
127AQI (US)
127AQI (US)
14th March 2026
22AQI (US)
22AQI (US)
15th March 2026
42AQI (US)
42AQI (US)
16th March 2026
81AQI (US)
81AQI (US)
17th March 2026
121AQI (US)
121AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
41AQI (US)
41AQI (US)
20th March 2026
56AQI (US)
56AQI (US)
21st March 2026
119AQI (US)
119AQI (US)
22nd March 2026
59AQI (US)
59AQI (US)
23rd March 2026
86AQI (US)
86AQI (US)
24th March 2026
142AQI (US)
142AQI (US)
25th March 2026
90AQI (US)
90AQI (US)
26th March 2026
60AQI (US)
60AQI (US)
27th March 2026
28AQI (US)
28AQI (US)
28th March 2026
66AQI (US)
66AQI (US)
29th March 2026
63AQI (US)
63AQI (US)
30th March 2026
32AQI (US)
32AQI (US)
31st March 2026
65AQI (US)
65AQI (US)
1st April 2026
32AQI (US)
32AQI (US)
2nd April 2026
71AQI (US)
71AQI (US)
3rd April 2026
83AQI (US)
83AQI (US)
4th April 2026
39AQI (US)
39AQI (US)
5th April 2026
59AQI (US)
59AQI (US)
6th April 2026
34AQI (US)
34AQI (US)
7th April 2026
48AQI (US)
48AQI (US)
8th April 2026
81AQI (US)
81AQI (US)
9th April 2026
69AQI (US)
69AQI (US)
10th April 2026
41AQI (US)
41AQI (US)
11th April 2026
40AQI (US)
40AQI (US)
12th April 2026
64AQI (US)
64AQI (US)
13th April 2026
75AQI (US)
75AQI (US)
14th April 2026
92AQI (US)
92AQI (US)
15th April 2026
107AQI (US)
107AQI (US)
16th April 2026
96AQI (US)
96AQI (US)
17th April 2026
70AQI (US)
70AQI (US)
18th April 2026
104AQI (US)
104AQI (US)
19th April 2026
103AQI (US)
103AQI (US)
20th April 2026
64AQI (US)
64AQI (US)
21st April 2026
49AQI (US)
49AQI (US)
22nd April 2026
38AQI (US)
38AQI (US)
23rd April 2026
81AQI (US)
81AQI (US)
24th April 2026
79AQI (US)
79AQI (US)
25th April 2026
61AQI (US)
61AQI (US)
26th April 2026
46AQI (US)
46AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
27AQI (US)
27AQI (US)
29th April 2026
24AQI (US)
24AQI (US)
30th April 2026
43AQI (US)
43AQI (US)
1st May 2026
49AQI (US)
49AQI (US)
2nd May 2026
48AQI (US)
48AQI (US)
3rd May 2026
26AQI (US)
26AQI (US)
4th May 2026
25AQI (US)
25AQI (US)
5th May 2026
63AQI (US)
63AQI (US)
6th May 2026
64AQI (US)
64AQI (US)
7th May 2026
25AQI (US)
25AQI (US)
8th May 2026
35AQI (US)
35AQI (US)
9th May 2026
64AQI (US)
64AQI (US)
10th May 2026
46AQI (US)
46AQI (US)
11th May 2026
29AQI (US)
29AQI (US)
12th May 2026
74AQI (US)
74AQI (US)
13th May 2026
106AQI (US)
106AQI (US)
14th May 2026
126AQI (US)
126AQI (US)
15th May 2026
123AQI (US)
123AQI (US)
16th May 2026
77AQI (US)
77AQI (US)
17th May 2026
78AQI (US)
78AQI (US)
18th May 2026
75AQI (US)
75AQI (US)
19th May 2026
76AQI (US)
76AQI (US)
20th May 2026
88AQI (US)
88AQI (US)
21st May 2026
98AQI (US)
98AQI (US)
22nd May 2026
99AQI (US)
99AQI (US)
23rd May 2026
89AQI (US)
89AQI (US)
24th May 2026
83AQI (US)
83AQI (US)
25th May 2026
83AQI (US)
83AQI (US)
26th May 2026
61AQI (US)
61AQI (US)
27th May 2026
59AQI (US)
59AQI (US)
28th May 2026
30AQI (US)
30AQI (US)
29th May 2026
30AQI (US)
30AQI (US)
30th May 2026
41AQI (US)
41AQI (US)
31st May 2026
41AQI (US)
41AQI (US)
1st June 2026
39AQI (US)
39AQI (US)
2nd June 2026
51AQI (US)
51AQI (US)
3rd June 2026
27AQI (US)
27AQI (US)
4th June 2026
25AQI (US)
25AQI (US)
5th June 2026
28AQI (US)
28AQI (US)
6th June 2026
35AQI (US)
35AQI (US)
7th June 2026
30AQI (US)
30AQI (US)
8th June 2026
28AQI (US)
28AQI (US)
9th June 2026
19AQI (US)
19AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
48AQI (US)
48AQI (US)
13th June 2026
54AQI (US)
54AQI (US)
14th June 2026
47AQI (US)
47AQI (US)
15th June 2026
88AQI (US)
88AQI (US)
16th June 2026
63AQI (US)
63AQI (US)
17th June 2026
18AQI (US)
18AQI (US)
18th June 2026
40AQI (US)
40AQI (US)
19th June 2026
93AQI (US)
93AQI (US)
20th June 2026
36AQI (US)
36AQI (US)
21st June 2026
33AQI (US)
33AQI (US)
22nd June 2026
39AQI (US)
39AQI (US)
23rd June 2026
53AQI (US)
53AQI (US)
24th June 2026
32AQI (US)
32AQI (US)
25th June 2026
21AQI (US)
21AQI (US)
26th June 2026
33AQI (US)
33AQI (US)
27th June 2026
52AQI (US)
52AQI (US)
28th June 2026
64AQI (US)
64AQI (US)
29th June 2026
73AQI (US)
73AQI (US)
30th June 2026
54AQI (US)
54AQI (US)
1st July 2026
60AQI (US)
60AQI (US)
2nd July 2026
49AQI (US)
49AQI (US)
3rd July 2026
73AQI (US)
73AQI (US)
4th July 2026
49AQI (US)
49AQI (US)
5th July 2026
43AQI (US)
43AQI (US)
6th July 2026
42AQI (US)
42AQI (US)
7th July 2026
40AQI (US)
40AQI (US)
8th July 2026
43AQI (US)
43AQI (US)
9th July 2026
46AQI (US)
46AQI (US)
10th July 2026
56AQI (US)
56AQI (US)
11th July 2026
66AQI (US)
66AQI (US)
12th July 2026
61AQI (US)
61AQI (US)
13th July 2026
62AQI (US)
62AQI (US)
14th July 2026
31AQI (US)
31AQI (US)
15th July 2026
47AQI (US)
47AQI (US)
16th July 2026
34AQI (US)
34AQI (US)
17th July 2026
54AQI (US)
54AQI (US)
18th July 2026
45AQI (US)
45AQI (US)
19th July 2026
50AQI (US)
50AQI (US)
20th July 2026
68AQI (US)
68AQI (US)
21st July 2026
55AQI (US)
55AQI (US)
22nd July 2026
55AQI (US)
55AQI (US)
23rd July 2026
58AQI (US)
58AQI (US)
24th July 2026
66AQI (US)
66AQI (US)
25th July 2026
66AQI (US)
66AQI (US)
26th July 2026
75AQI (US)
75AQI (US)
27th July 2026
76AQI (US)
76AQI (US)
28th July 2026
76AQI (US)
76AQI (US)
29th July 2026
69AQI (US)
69AQI (US)
30th July 2026
61AQI (US)
61AQI (US)
31st July 2026
67AQI (US)
67AQI (US)
1st August 2026
62AQI (US)
62AQI (US)
2nd August 2026
75AQI (US)
75AQI (US)
3rd August 2026
52AQI (US)
52AQI (US)
4th August 2026
51AQI (US)
51AQI (US)
5th August 2026
63AQI (US)
63AQI (US)
6th August 2026
54AQI (US)
54AQI (US)
7th August 2026
52AQI (US)
52AQI (US)
8th August 2026
56AQI (US)
56AQI (US)
9th August 2026
71AQI (US)
71AQI (US)
10th August 2026
86AQI (US)
86AQI (US)
11th August 2026
80AQI (US)
80AQI (US)
12th August 2026
37AQI (US)
37AQI (US)
13th August 2026
43AQI (US)
43AQI (US)
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
58AQI (US)
64AQI (US)
74AQI (US)
62AQI (US)
65AQI (US)
42AQI (US)
56AQI (US)
60AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202660AQI (US)
18
9
4
11
14
3
9
16
6
13
14
3
12
16
3
20
10
12
19
2
11
97
109
19
Highest AQI (US) recorded in
March74AQI (US)
Lowest AQI (US) recorded in
June42AQI (US)
202568AQI (US)
6
20
5
10
16
2
5
19
5
2
5
24
1
3
28
8
22
31
31
3
27
6
22
3
7
15
8
7
17
7
60
272
31
2
Highest AQI (US) recorded in
March82AQI (US)
Lowest AQI (US) recorded in
June59AQI (US)
202470AQI (US)
9
13
5
3
5
16
6
2
5
17
7
2
4
16
8
2
5
21
5
11
17
1
1
6
24
1
19
12
20
8
2
12
14
5
10
14
5
1
13
18
119
190
45
10
1
Highest AQI (US) recorded in
April90AQI (US)
Lowest AQI (US) recorded in
August50AQI (US)
202377AQI (US)
4
15
8
3
4
15
4
5
3
19
6
2
1
4
12
10
1
1
5
18
6
2
9
16
5
3
26
2
12
17
2
14
14
2
15
14
2
15
10
4
5
15
11
93
191
62
13
2
Highest AQI (US) recorded in
January95AQI (US)
Lowest AQI (US) recorded in
October57AQI (US)
202266AQI (US)
1
1
1
1
4
1
1
13
18
8
12
10
8
13
1
1
11
16
1
16
7
7
1
10
10
10
17
13
1
85
96
30
1
2
Highest AQI (US) recorded in
February102AQI (US)
Lowest AQI (US) recorded in
May56AQI (US)
2021122AQI (US)
19
5
3
2
2
17
6
5
8
8
12
1
2
13
11
3
1
57
30
23
3
5
Highest AQI (US) recorded in
March152AQI (US)
Lowest AQI (US) recorded in
February102AQI (US)
202079AQI (US)
4
5
3
1
2
13
6
5
9
4
1
1
23
5
1
1
26
4
6
24
1
14
15
1
2
21
5
2
1
19
8
3
1
22
8
36
177
45
7
1
1
Highest AQI (US) recorded in
November93AQI (US)
Lowest AQI (US) recorded in
September57AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2021(Avg.)
122AQI (US)Least Polluted Year Recorded
2026(Avg.)
60AQI (US)Century Compound's annual 2026 AQI (US) (60) shows an average percentage change of -22.01% (improved AQI (US)) compared to previous years: 2020 (79), 2021 (122), 2022 (66), 2023 (77), 2024 (70), 2025 (68).
