Hejian, 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+
July Air Quality Analysis
Hejian, Hebei, China
2022
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
22nd Jul 2022
101AQILowest AQI recorded on
13th Jul 2022
32AQISame Day Analysis (30th July):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 49 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 29th Jul - 30th Jul 2026
Hejian, Hebei, China
AQI
Day
Night
.
5 AM29th Jul 2026
7 PM
4 AM30th Jul 2026
Day time
Avg. Highest Time
6AM29th Jul
52AQI
Avg. Lowest Time
1PM29th Jul
26AQI
Night time
Avg. Highest Time
3AM30th Jul
52AQI
Avg. Lowest Time
8PM29th Jul
29AQI
In the last 24 hours,
Hejian's AQI reached its highest point of 52 at 6 AM during the Day, while the lowest point, 26, was recorded at 1 PM during the Day between 29th Jul and 30th Jul 2026.
Day & Night AQI Trend : Jul 2026
Hejian, Hebei, China
Jul
01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th
Day
Night
1st Jul 2026595 AMAQI
1st Jul 2026726 AMAQI
1st Jul 20261007 AMAQI
1st Jul 2026998 AMAQI
1st Jul 2026969 AMAQI
1st Jul 20267210 AMAQI
1st Jul 20268711 AMAQI
1st Jul 202610412 PMAQI
1st Jul 2026801 PMAQI
1st Jul 2026732 PMAQI
1st Jul 2026663 PMAQI
1st Jul 2026794 PMAQI
1st Jul 2026675 PMAQI
1st Jul 2026606 PMAQI
1st Jul 2026707 PMAQI
1st Jul 2026898 PMAQI
1st Jul 2026869 PMAQI
1st Jul 20268910 PMAQI
1st Jul 20268711 PMAQI
2nd Jul 20269112 AMAQI
2nd Jul 2026911 AMAQI
2nd Jul 2026922 AMAQI
2nd Jul 2026993 AMAQI
2nd Jul 20261074 AMAQI
27°C23/32°C
2nd Jul 20261105 AMAQI
2nd Jul 20261226 AMAQI
2nd Jul 20261287 AMAQI
2nd Jul 20261248 AMAQI
2nd Jul 20261119 AMAQI
2nd Jul 202610410 AMAQI
2nd Jul 20269311 AMAQI
2nd Jul 202610212 PMAQI
2nd Jul 2026931 PMAQI
2nd Jul 2026892 PMAQI
2nd Jul 2026793 PMAQI
2nd Jul 2026834 PMAQI
2nd Jul 2026995 PMAQI
2nd Jul 20261066 PMAQI
2nd Jul 2026977 PMAQI
2nd Jul 2026978 PMAQI
2nd Jul 20261049 PMAQI
2nd Jul 202610410 PMAQI
2nd Jul 202610611 PMAQI
3rd Jul 202611612 AMAQI
3rd Jul 20261071 AMAQI
3rd Jul 20261062 AMAQI
3rd Jul 20261063 AMAQI
3rd Jul 20261104 AMAQI
31°C25/38°C
3rd Jul 20261155 AMAQI
3rd Jul 20261156 AMAQI
3rd Jul 20261047 AMAQI
3rd Jul 20261088 AMAQI
3rd Jul 2026969 AMAQI
3rd Jul 202610010 AMAQI
3rd Jul 20269911 AMAQI
3rd Jul 202610212 PMAQI
3rd Jul 20261121 PMAQI
3rd Jul 20261122 PMAQI
3rd Jul 20261103 PMAQI
3rd Jul 20261054 PMAQI
3rd Jul 20261055 PMAQI
3rd Jul 2026916 PMAQI
3rd Jul 2026847 PMAQI
3rd Jul 2026828 PMAQI
3rd Jul 2026839 PMAQI
3rd Jul 20267210 PMAQI
3rd Jul 20266711 PMAQI
4th Jul 20267012 AMAQI
4th Jul 2026691 AMAQI
4th Jul 2026622 AMAQI
4th Jul 2026553 AMAQI
4th Jul 2026524 AMAQI
33°C27/39°C
4th Jul 2026415 AMAQI
4th Jul 2026486 AMAQI
4th Jul 2026577 AMAQI
4th Jul 2026558 AMAQI
4th Jul 2026519 AMAQI
4th Jul 20265110 AMAQI
4th Jul 20264911 AMAQI
4th Jul 20264912 PMAQI
4th Jul 2026571 PMAQI
4th Jul 2026612 PMAQI
4th Jul 2026643 PMAQI
4th Jul 2026584 PMAQI
4th Jul 2026585 PMAQI
4th Jul 2026656 PMAQI
4th Jul 2026617 PMAQI
4th Jul 2026638 PMAQI
4th Jul 2026729 PMAQI
4th Jul 20268310 PMAQI
4th Jul 20267811 PMAQI
5th Jul 20267712 AMAQI
5th Jul 2026781 AMAQI
5th Jul 2026692 AMAQI
5th Jul 2026653 AMAQI
5th Jul 2026734 AMAQI
33°C27/40°C
5th Jul 2026525 AMAQI
5th Jul 2026266 AMAQI
5th Jul 2026207 AMAQI
5th Jul 2026268 AMAQI
5th Jul 2026299 AMAQI
5th Jul 20262610 AMAQI
5th Jul 20263011 AMAQI
5th Jul 20263912 PMAQI
5th Jul 2026351 PMAQI
5th Jul 2026312 PMAQI
5th Jul 2026373 PMAQI
5th Jul 2026404 PMAQI
5th Jul 2026295 PMAQI
5th Jul 2026266 PMAQI
5th Jul 2026337 PMAQI
5th Jul 2026358 PMAQI
5th Jul 2026459 PMAQI
5th Jul 20265210 PMAQI
5th Jul 20265411 PMAQI
6th Jul 20265512 AMAQI
6th Jul 2026501 AMAQI
6th Jul 2026532 AMAQI
6th Jul 2026573 AMAQI
6th Jul 2026644 AMAQI
26°C22/31°C
6th Jul 2026705 AMAQI
6th Jul 2026756 AMAQI
6th Jul 2026727 AMAQI
6th Jul 2026708 AMAQI
6th Jul 2026699 AMAQI
6th Jul 20266610 AMAQI
6th Jul 20266811 AMAQI
6th Jul 20267112 PMAQI
6th Jul 2026551 PMAQI
6th Jul 2026322 PMAQI
6th Jul 2026293 PMAQI
6th Jul 2026324 PMAQI
6th Jul 2026375 PMAQI
6th Jul 2026406 PMAQI
6th Jul 2026397 PMAQI
6th Jul 2026378 PMAQI
6th Jul 2026429 PMAQI
6th Jul 20265110 PMAQI
6th Jul 20265111 PMAQI
7th Jul 20265512 AMAQI
7th Jul 2026631 AMAQI
7th Jul 2026722 AMAQI
7th Jul 2026513 AMAQI
7th Jul 2026384 AMAQI
28°C21/35°C
7th Jul 2026505 AMAQI
7th Jul 2026636 AMAQI
7th Jul 2026657 AMAQI
7th Jul 2026588 AMAQI
7th Jul 2026609 AMAQI
7th Jul 20266710 AMAQI
7th Jul 20266111 AMAQI
7th Jul 20266312 PMAQI
7th Jul 2026671 PMAQI
7th Jul 2026752 PMAQI
7th Jul 2026723 PMAQI
7th Jul 2026714 PMAQI
7th Jul 2026655 PMAQI
7th Jul 2026576 PMAQI
7th Jul 2026617 PMAQI
7th Jul 2026378 PMAQI
7th Jul 2026499 PMAQI
7th Jul 20265510 PMAQI
7th Jul 20265511 PMAQI
8th Jul 20264512 AMAQI
8th Jul 2026311 AMAQI
8th Jul 2026332 AMAQI
8th Jul 2026343 AMAQI
8th Jul 2026354 AMAQI
28°C23/35°C
8th Jul 2026445 AMAQI
8th Jul 2026526 AMAQI
8th Jul 2026587 AMAQI
8th Jul 2026608 AMAQI
8th Jul 2026629 AMAQI
8th Jul 20265410 AMAQI
8th Jul 20264511 AMAQI
8th Jul 20263812 PMAQI
8th Jul 2026351 PMAQI
8th Jul 2026532 PMAQI
8th Jul 2026463 PMAQI
8th Jul 2026474 PMAQI
8th Jul 2026595 PMAQI
8th Jul 2026616 PMAQI
8th Jul 2026617 PMAQI
8th Jul 2026698 PMAQI
8th Jul 2026729 PMAQI
8th Jul 20267510 PMAQI
8th Jul 20268111 PMAQI
9th Jul 20268512 AMAQI
9th Jul 2026911 AMAQI
9th Jul 2026882 AMAQI
9th Jul 2026863 AMAQI
9th Jul 2026814 AMAQI
30°C22/37°C
9th Jul 2026855 AMAQI
9th Jul 2026946 AMAQI
9th Jul 2026597 AMAQI
9th Jul 2026538 AMAQI
9th Jul 2026469 AMAQI
9th Jul 20263210 AMAQI
9th Jul 20262511 AMAQI
9th Jul 20262412 PMAQI
9th Jul 2026221 PMAQI
9th Jul 2026302 PMAQI
9th Jul 2026413 PMAQI
9th Jul 2026494 PMAQI
9th Jul 2026785 PMAQI
9th Jul 2026776 PMAQI
9th Jul 2026877 PMAQI
9th Jul 2026988 PMAQI
9th Jul 20261019 PMAQI
9th Jul 202610510 PMAQI
9th Jul 202610411 PMAQI
10th Jul 20268912 AMAQI
10th Jul 20261001 AMAQI
10th Jul 2026772 AMAQI
10th Jul 2026833 AMAQI
10th Jul 2026684 AMAQI
30°C25/39°C
10th Jul 2026355 AMAQI
10th Jul 2026296 AMAQI
10th Jul 2026337 AMAQI
10th Jul 2026388 AMAQI
10th Jul 2026489 AMAQI
10th Jul 20265710 AMAQI
10th Jul 20266411 AMAQI
10th Jul 20266612 PMAQI
10th Jul 2026591 PMAQI
10th Jul 2026542 PMAQI
10th Jul 2026573 PMAQI
10th Jul 2026734 PMAQI
10th Jul 2026685 PMAQI
10th Jul 2026696 PMAQI
10th Jul 2026627 PMAQI
10th Jul 2026438 PMAQI
10th Jul 2026389 PMAQI
10th Jul 20265710 PMAQI
10th Jul 20264611 PMAQI
11th Jul 20264212 AMAQI
11th Jul 2026491 AMAQI
11th Jul 2026532 AMAQI
11th Jul 2026593 AMAQI
11th Jul 2026704 AMAQI
29°C25/34°C
11th Jul 2026725 AMAQI
11th Jul 2026816 AMAQI
11th Jul 2026807 AMAQI
11th Jul 2026948 AMAQI
11th Jul 20261049 AMAQI
11th Jul 20269410 AMAQI
11th Jul 202610811 AMAQI
11th Jul 20269112 PMAQI
11th Jul 2026961 PMAQI
11th Jul 2026952 PMAQI
11th Jul 2026943 PMAQI
11th Jul 2026884 PMAQI
11th Jul 2026785 PMAQI
11th Jul 2026816 PMAQI
11th Jul 2026717 PMAQI
11th Jul 2026618 PMAQI
11th Jul 2026729 PMAQI
11th Jul 20267710 PMAQI
11th Jul 20267511 PMAQI
12th Jul 20266712 AMAQI
12th Jul 2026471 AMAQI
12th Jul 2026372 AMAQI
12th Jul 2026293 AMAQI
12th Jul 2026384 AMAQI
28°C25/33°C
12th Jul 2026465 AMAQI
12th Jul 2026466 AMAQI
12th Jul 2026477 AMAQI
12th Jul 2026528 AMAQI
12th Jul 2026769 AMAQI
12th Jul 20267210 AMAQI
12th Jul 20266911 AMAQI
12th Jul 20266712 PMAQI
12th Jul 2026701 PMAQI
12th Jul 2026642 PMAQI
12th Jul 2026643 PMAQI
12th Jul 2026644 PMAQI
12th Jul 2026625 PMAQI
12th Jul 2026486 PMAQI
12th Jul 2026337 PMAQI
12th Jul 2026358 PMAQI
12th Jul 2026389 PMAQI
12th Jul 20263910 PMAQI
12th Jul 20263911 PMAQI
13th Jul 20263112 AMAQI
13th Jul 2026391 AMAQI
13th Jul 2026452 AMAQI
13th Jul 2026463 AMAQI
13th Jul 2026474 AMAQI
30°C27/34°C
13th Jul 2026585 AMAQI
13th Jul 2026606 AMAQI
13th Jul 2026647 AMAQI
13th Jul 2026598 AMAQI
13th Jul 2026639 AMAQI
13th Jul 20266110 AMAQI
13th Jul 20265711 AMAQI
13th Jul 20265812 PMAQI
13th Jul 2026551 PMAQI
13th Jul 2026512 PMAQI
13th Jul 2026533 PMAQI
13th Jul 2026504 PMAQI
13th Jul 2026565 PMAQI
13th Jul 2026576 PMAQI
13th Jul 2026517 PMAQI
13th Jul 2026528 PMAQI
13th Jul 2026489 PMAQI
13th Jul 20264310 PMAQI
13th Jul 20264811 PMAQI
14th Jul 20265312 AMAQI
14th Jul 2026531 AMAQI
14th Jul 2026542 AMAQI
14th Jul 2026603 AMAQI
14th Jul 2026634 AMAQI
28°C25/31°C
14th Jul 2026595 AMAQI
14th Jul 2026606 AMAQI
14th Jul 2026657 AMAQI
14th Jul 2026658 AMAQI
14th Jul 2026539 AMAQI
14th Jul 20264410 AMAQI
14th Jul 20264411 AMAQI
14th Jul 20265412 PMAQI
14th Jul 2026501 PMAQI
14th Jul 2026472 PMAQI
14th Jul 2026493 PMAQI
14th Jul 2026514 PMAQI
14th Jul 2026545 PMAQI
14th Jul 2026586 PMAQI
14th Jul 2026527 PMAQI
14th Jul 2026538 PMAQI
14th Jul 2026629 PMAQI
14th Jul 20266510 PMAQI
14th Jul 20266511 PMAQI
15th Jul 20266612 AMAQI
15th Jul 2026561 AMAQI
15th Jul 2026452 AMAQI
15th Jul 2026433 AMAQI
15th Jul 2026474 AMAQI
30°C25/36°C
15th Jul 2026505 AMAQI
15th Jul 2026536 AMAQI
15th Jul 2026417 AMAQI
15th Jul 2026338 AMAQI
15th Jul 2026399 AMAQI
15th Jul 20264410 AMAQI
15th Jul 20264711 AMAQI
15th Jul 20265412 PMAQI
15th Jul 2026581 PMAQI
15th Jul 2026592 PMAQI
15th Jul 2026503 PMAQI
15th Jul 2026504 PMAQI
15th Jul 2026545 PMAQI
15th Jul 2026596 PMAQI
15th Jul 2026607 PMAQI
15th Jul 2026568 PMAQI
15th Jul 2026669 PMAQI
15th Jul 20266910 PMAQI
15th Jul 20266211 PMAQI
16th Jul 20266412 AMAQI
16th Jul 2026681 AMAQI
16th Jul 2026642 AMAQI
16th Jul 2026673 AMAQI
16th Jul 2026744 AMAQI
30°C23/35°C
16th Jul 2026725 AMAQI
16th Jul 2026746 AMAQI
16th Jul 2026837 AMAQI
16th Jul 2026928 AMAQI
16th Jul 2026919 AMAQI
16th Jul 20268710 AMAQI
16th Jul 20268511 AMAQI
16th Jul 20268412 PMAQI
16th Jul 2026871 PMAQI
16th Jul 2026862 PMAQI
16th Jul 2026833 PMAQI
16th Jul 2026904 PMAQI
16th Jul 2026885 PMAQI
16th Jul 20261016 PMAQI
16th Jul 20261097 PMAQI
16th Jul 20261068 PMAQI
16th Jul 20261089 PMAQI
16th Jul 202611210 PMAQI
16th Jul 202610311 PMAQI
17th Jul 20269112 AMAQI
17th Jul 2026851 AMAQI
17th Jul 2026782 AMAQI
17th Jul 2026713 AMAQI
17th Jul 2026654 AMAQI
31°C28/35°C
17th Jul 2026535 AMAQI
17th Jul 2026476 AMAQI
17th Jul 2026337 AMAQI
17th Jul 2026328 AMAQI
17th Jul 2026339 AMAQI
17th Jul 20262810 AMAQI
17th Jul 20263211 AMAQI
17th Jul 20262812 PMAQI
17th Jul 2026191 PMAQI
17th Jul 2026182 PMAQI
17th Jul 2026233 PMAQI
17th Jul 2026224 PMAQI
17th Jul 2026235 PMAQI
17th Jul 2026226 PMAQI
17th Jul 2026297 PMAQI
17th Jul 2026388 PMAQI
17th Jul 2026509 PMAQI
17th Jul 20265810 PMAQI
17th Jul 20265711 PMAQI
18th Jul 20266112 AMAQI
18th Jul 2026621 AMAQI
18th Jul 2026652 AMAQI
18th Jul 2026703 AMAQI
18th Jul 2026694 AMAQI
28°C25/32°C
18th Jul 2026725 AMAQI
18th Jul 2026806 AMAQI
18th Jul 2026817 AMAQI
18th Jul 2026778 AMAQI
18th Jul 2026729 AMAQI
18th Jul 20266310 AMAQI
18th Jul 20265711 AMAQI
18th Jul 20265412 PMAQI
18th Jul 2026511 PMAQI
18th Jul 2026452 PMAQI
18th Jul 2026543 PMAQI
18th Jul 2026494 PMAQI
18th Jul 2026525 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026477 PMAQI
18th Jul 2026568 PMAQI
18th Jul 2026569 PMAQI
18th Jul 20266110 PMAQI
18th Jul 20266811 PMAQI
19th Jul 20266912 AMAQI
19th Jul 2026901 AMAQI
19th Jul 2026762 AMAQI
19th Jul 2026743 AMAQI
19th Jul 2026904 AMAQI
27°C22/34°C
19th Jul 2026965 AMAQI
19th Jul 20261006 AMAQI
19th Jul 2026937 AMAQI
19th Jul 2026928 AMAQI
19th Jul 20261029 AMAQI
19th Jul 20269310 AMAQI
19th Jul 20268811 AMAQI
19th Jul 20268512 PMAQI
19th Jul 2026861 PMAQI
19th Jul 2026722 PMAQI
19th Jul 2026673 PMAQI
19th Jul 2026584 PMAQI
19th Jul 2026565 PMAQI
19th Jul 2026656 PMAQI
19th Jul 2026657 PMAQI
19th Jul 2026788 PMAQI
19th Jul 2026909 PMAQI
19th Jul 202610010 PMAQI
19th Jul 20269511 PMAQI
20th Jul 20269012 AMAQI
20th Jul 2026911 AMAQI
20th Jul 2026922 AMAQI
20th Jul 2026853 AMAQI
20th Jul 20261014 AMAQI
29°C23/36°C
20th Jul 20261095 AMAQI
20th Jul 20261316 AMAQI
20th Jul 20261297 AMAQI
20th Jul 20261258 AMAQI
20th Jul 20261169 AMAQI
20th Jul 202611210 AMAQI
20th Jul 202610811 AMAQI
20th Jul 202610212 PMAQI
20th Jul 2026931 PMAQI
20th Jul 2026922 PMAQI
20th Jul 2026863 PMAQI
20th Jul 2026744 PMAQI
20th Jul 2026795 PMAQI
20th Jul 2026806 PMAQI
20th Jul 2026817 PMAQI
20th Jul 2026848 PMAQI
20th Jul 2026889 PMAQI
20th Jul 20267910 PMAQI
20th Jul 20269511 PMAQI
21st Jul 20264312 AMAQI
21st Jul 2026261 AMAQI
21st Jul 2026242 AMAQI
21st Jul 2026253 AMAQI
21st Jul 2026364 AMAQI
31°C24/37°C
21st Jul 2026325 AMAQI
21st Jul 2026416 AMAQI
21st Jul 2026457 AMAQI
21st Jul 2026458 AMAQI
21st Jul 2026479 AMAQI
21st Jul 20264710 AMAQI
21st Jul 20263312 PMAQI
21st Jul 2026411 PMAQI
21st Jul 2026502 PMAQI
21st Jul 2026603 PMAQI
21st Jul 2026654 PMAQI
21st Jul 2026725 PMAQI
21st Jul 20261016 PMAQI
21st Jul 2026887 PMAQI
21st Jul 2026898 PMAQI
21st Jul 20261019 PMAQI
21st Jul 202610010 PMAQI
21st Jul 20269911 PMAQI
22nd Jul 202610412 AMAQI
22nd Jul 20261071 AMAQI
22nd Jul 20261082 AMAQI
22nd Jul 20261173 AMAQI
22nd Jul 20261114 AMAQI
28°C21/35°C
22nd Jul 20261015 AMAQI
22nd Jul 20261136 AMAQI
22nd Jul 2026907 AMAQI
22nd Jul 2026778 AMAQI
22nd Jul 2026769 AMAQI
22nd Jul 20268210 AMAQI
22nd Jul 202611111 AMAQI
22nd Jul 202610912 PMAQI
22nd Jul 2026991 PMAQI
22nd Jul 20261022 PMAQI
22nd Jul 2026823 PMAQI
22nd Jul 2026664 PMAQI
22nd Jul 2026545 PMAQI
22nd Jul 2026626 PMAQI
22nd Jul 2026617 PMAQI
22nd Jul 2026678 PMAQI
22nd Jul 2026479 PMAQI
22nd Jul 20265210 PMAQI
22nd Jul 20265111 PMAQI
23rd Jul 20264512 AMAQI
23rd Jul 2026311 AMAQI
23rd Jul 2026352 AMAQI
23rd Jul 2026383 AMAQI
23rd Jul 2026384 AMAQI
27°C24/33°C
23rd Jul 2026415 AMAQI
23rd Jul 2026376 AMAQI
23rd Jul 2026487 AMAQI
23rd Jul 2026648 AMAQI
23rd Jul 2026669 AMAQI
23rd Jul 20267010 AMAQI
23rd Jul 20267811 AMAQI
23rd Jul 20267512 PMAQI
23rd Jul 2026771 PMAQI
23rd Jul 2026522 PMAQI
23rd Jul 2026583 PMAQI
23rd Jul 2026664 PMAQI
23rd Jul 2026655 PMAQI
23rd Jul 2026676 PMAQI
23rd Jul 2026617 PMAQI
23rd Jul 2026648 PMAQI
23rd Jul 2026729 PMAQI
23rd Jul 20269710 PMAQI
23rd Jul 20268811 PMAQI
24th Jul 20269212 AMAQI
24th Jul 2026891 AMAQI
24th Jul 2026872 AMAQI
24th Jul 2026753 AMAQI
24th Jul 2026784 AMAQI
27°C23/31°C
24th Jul 2026785 AMAQI
24th Jul 2026826 AMAQI
24th Jul 2026957 AMAQI
24th Jul 20261088 AMAQI
24th Jul 20261079 AMAQI
24th Jul 202611110 AMAQI
24th Jul 20269911 AMAQI
24th Jul 202610212 PMAQI
24th Jul 2026951 PMAQI
24th Jul 2026982 PMAQI
24th Jul 2026773 PMAQI
24th Jul 2026744 PMAQI
24th Jul 2026835 PMAQI
24th Jul 2026806 PMAQI
24th Jul 2026817 PMAQI
24th Jul 2026878 PMAQI
24th Jul 2026929 PMAQI
24th Jul 202610110 PMAQI
24th Jul 202610111 PMAQI
25th Jul 20269312 AMAQI
25th Jul 2026821 AMAQI
25th Jul 2026712 AMAQI
25th Jul 2026733 AMAQI
25th Jul 2026784 AMAQI
28°C24/33°C
25th Jul 2026755 AMAQI
25th Jul 2026866 AMAQI
25th Jul 2026957 AMAQI
25th Jul 2026968 AMAQI
25th Jul 20261079 AMAQI
25th Jul 202610110 AMAQI
25th Jul 202611911 AMAQI
25th Jul 20267612 PMAQI
25th Jul 2026581 PMAQI
25th Jul 2026562 PMAQI
25th Jul 2026483 PMAQI
25th Jul 2026514 PMAQI
25th Jul 2026565 PMAQI
25th Jul 2026676 PMAQI
25th Jul 2026777 PMAQI
25th Jul 2026768 PMAQI
25th Jul 2026849 PMAQI
25th Jul 20265110 PMAQI
25th Jul 20265011 PMAQI
26th Jul 20264912 AMAQI
26th Jul 2026521 AMAQI
26th Jul 2026552 AMAQI
26th Jul 2026593 AMAQI
26th Jul 2026634 AMAQI
29°C24/33°C
26th Jul 2026675 AMAQI
26th Jul 2026666 AMAQI
26th Jul 2026837 AMAQI
26th Jul 2026888 AMAQI
26th Jul 2026909 AMAQI
26th Jul 20268710 AMAQI
26th Jul 20267411 AMAQI
26th Jul 20267812 PMAQI
26th Jul 2026811 PMAQI
26th Jul 2026772 PMAQI
26th Jul 2026773 PMAQI
26th Jul 2026784 PMAQI
26th Jul 2026735 PMAQI
26th Jul 2026716 PMAQI
26th Jul 2026737 PMAQI
26th Jul 2026768 PMAQI
26th Jul 2026789 PMAQI
26th Jul 20267610 PMAQI
26th Jul 20267011 PMAQI
27th Jul 20266612 AMAQI
27th Jul 2026651 AMAQI
27th Jul 2026662 AMAQI
27th Jul 2026723 AMAQI
27th Jul 2026724 AMAQI
30°C26/34°C
27th Jul 2026815 AMAQI
27th Jul 2026876 AMAQI
27th Jul 2026897 AMAQI
27th Jul 2026848 AMAQI
27th Jul 2026809 AMAQI
27th Jul 20268810 AMAQI
27th Jul 20268711 AMAQI
27th Jul 20268912 PMAQI
27th Jul 2026811 PMAQI
27th Jul 2026612 PMAQI
27th Jul 2026633 PMAQI
27th Jul 2026584 PMAQI
27th Jul 2026495 PMAQI
27th Jul 2026456 PMAQI
27th Jul 2026407 PMAQI
27th Jul 2026428 PMAQI
27th Jul 2026559 PMAQI
27th Jul 20266110 PMAQI
27th Jul 20266411 PMAQI
28th Jul 20266012 AMAQI
28th Jul 2026581 AMAQI
28th Jul 2026612 AMAQI
28th Jul 2026643 AMAQI
28th Jul 2026654 AMAQI
30°C25/36°C
28th Jul 2026695 AMAQI
28th Jul 2026676 AMAQI
28th Jul 2026727 AMAQI
28th Jul 2026738 AMAQI
28th Jul 2026659 AMAQI
28th Jul 20265510 AMAQI
28th Jul 20265611 AMAQI
28th Jul 20263912 PMAQI
28th Jul 2026341 PMAQI
28th Jul 2026332 PMAQI
28th Jul 2026313 PMAQI
28th Jul 2026354 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026457 PMAQI
28th Jul 2026548 PMAQI
28th Jul 2026519 PMAQI
28th Jul 20265010 PMAQI
28th Jul 20265311 PMAQI
29th Jul 20264712 AMAQI
29th Jul 2026351 AMAQI
29th Jul 2026282 AMAQI
29th Jul 2026293 AMAQI
29th Jul 2026394 AMAQI
30°C25/37°C
29th Jul 2026455 AMAQI
29th Jul 2026526 AMAQI
29th Jul 2026457 AMAQI
29th Jul 2026398 AMAQI
29th Jul 2026419 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20263611 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026261 PMAQI
29th Jul 2026322 PMAQI
29th Jul 2026303 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026355 PMAQI
29th Jul 2026296 PMAQI
29th Jul 2026317 PMAQI
29th Jul 2026298 PMAQI
29th Jul 2026329 PMAQI
29th Jul 20263510 PMAQI
29th Jul 20263911 PMAQI
30th Jul 20265112 AMAQI
30th Jul 2026461 AMAQI
30th Jul 2026432 AMAQI
30th Jul 2026523 AMAQI
30th Jul 2026454 AMAQI
30°C26/35°C
30th Jul 2026395 AMAQI
5 AM30th Jul 2026316 AMAQI
30th Jul 2026487 AMAQI
30th Jul 2026468 AMAQI
30th Jul 2026459 AMAQI
30th Jul 20266510 AMAQI
30th Jul 20264711 AMAQI
30th Jul 20264712 PMAQI
12 PM30th Jul 2026491 PMAQI
30th Jul 2026442 PMAQI
30th Jul 2026453 PMAQI
30th Jul 2026484 PMAQI
30th Jul 2026545 PMAQI
30th Jul 2026546 PMAQI
30th Jul 2026547 PMAQI
7 PM30th Jul 2026518 PMAQI
30th Jul 2026549 PMAQI
30th Jul 20264810 PMAQI
30th Jul 20266411 PMAQI
12 AM
4 AM
30°C26/34°C
Day time
Avg. Highest Time
6 AM - 11 AM
70AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
2 PM - 4 PM
60AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 11 AM (Avg. 70), while the lowest AQI was between 2 PM to 4 PM (Avg. 60).
Night time
Avg. Highest Time
10 PM - 11 PM
71AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
2 AM - 3 AM
63AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 71), while the lowest AQI was between 2 AM to 3 AM (Avg. 63).
2026 Days Vs Air Quality
Hejian, Hebei, China
2026
10%
22
49%
104
28%
59
12%
26
Total number of days with different AQI categories in last 211 days in 2026 (154 days remaining)
Good
22 DaysModerate
104 DaysPoor
59 DaysUnhealthy
26 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 10%
Health Risk Level:
Extreme
In 2026, 10% of 211 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Hejian, 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
94AQI (US)
94AQI (US)
2nd January 2026
128AQI (US)
128AQI (US)
3rd January 2026
171AQI (US)
171AQI (US)
4th January 2026
187AQI (US)
187AQI (US)
5th January 2026
171AQI (US)
171AQI (US)
6th January 2026
152AQI (US)
152AQI (US)
7th January 2026
93AQI (US)
93AQI (US)
8th January 2026
109AQI (US)
109AQI (US)
9th January 2026
132AQI (US)
132AQI (US)
10th January 2026
52AQI (US)
52AQI (US)
11th January 2026
45AQI (US)
45AQI (US)
12th January 2026
106AQI (US)
106AQI (US)
13th January 2026
115AQI (US)
115AQI (US)
14th January 2026
125AQI (US)
125AQI (US)
15th January 2026
170AQI (US)
170AQI (US)
16th January 2026
152AQI (US)
152AQI (US)
17th January 2026
94AQI (US)
94AQI (US)
18th January 2026
78AQI (US)
78AQI (US)
19th January 2026
58AQI (US)
58AQI (US)
20th January 2026
71AQI (US)
71AQI (US)
21st January 2026
107AQI (US)
107AQI (US)
22nd January 2026
146AQI (US)
146AQI (US)
23rd January 2026
158AQI (US)
158AQI (US)
24th January 2026
175AQI (US)
175AQI (US)
25th January 2026
130AQI (US)
130AQI (US)
26th January 2026
107AQI (US)
107AQI (US)
27th January 2026
141AQI (US)
141AQI (US)
28th January 2026
146AQI (US)
146AQI (US)
29th January 2026
129AQI (US)
129AQI (US)
30th January 2026
147AQI (US)
147AQI (US)
31st January 2026
156AQI (US)
156AQI (US)
1st February 2026
154AQI (US)
154AQI (US)
2nd February 2026
122AQI (US)
122AQI (US)
3rd February 2026
159AQI (US)
159AQI (US)
4th February 2026
164AQI (US)
164AQI (US)
5th February 2026
126AQI (US)
126AQI (US)
6th February 2026
48AQI (US)
48AQI (US)
7th February 2026
93AQI (US)
93AQI (US)
8th February 2026
118AQI (US)
118AQI (US)
9th February 2026
142AQI (US)
142AQI (US)
10th February 2026
151AQI (US)
151AQI (US)
11th February 2026
148AQI (US)
148AQI (US)
12th February 2026
159AQI (US)
159AQI (US)
13th February 2026
168AQI (US)
168AQI (US)
14th February 2026
160AQI (US)
160AQI (US)
15th February 2026
57AQI (US)
57AQI (US)
16th February 2026
80AQI (US)
80AQI (US)
17th February 2026
113AQI (US)
113AQI (US)
18th February 2026
104AQI (US)
104AQI (US)
19th February 2026
119AQI (US)
119AQI (US)
20th February 2026
92AQI (US)
92AQI (US)
21st February 2026
111AQI (US)
111AQI (US)
22nd February 2026
71AQI (US)
71AQI (US)
23rd February 2026
48AQI (US)
48AQI (US)
24th February 2026
100AQI (US)
100AQI (US)
25th February 2026
103AQI (US)
103AQI (US)
26th February 2026
127AQI (US)
127AQI (US)
27th February 2026
73AQI (US)
73AQI (US)
28th February 2026
104AQI (US)
104AQI (US)
1st March 2026
126AQI (US)
126AQI (US)
2nd March 2026
152AQI (US)
152AQI (US)
3rd March 2026
159AQI (US)
159AQI (US)
4th March 2026
155AQI (US)
155AQI (US)
5th March 2026
109AQI (US)
109AQI (US)
6th March 2026
113AQI (US)
113AQI (US)
7th March 2026
113AQI (US)
113AQI (US)
8th March 2026
148AQI (US)
148AQI (US)
9th March 2026
113AQI (US)
113AQI (US)
10th March 2026
138AQI (US)
138AQI (US)
11th March 2026
154AQI (US)
154AQI (US)
12th March 2026
152AQI (US)
152AQI (US)
13th March 2026
154AQI (US)
154AQI (US)
14th March 2026
125AQI (US)
125AQI (US)
15th March 2026
77AQI (US)
77AQI (US)
16th March 2026
106AQI (US)
106AQI (US)
17th March 2026
134AQI (US)
134AQI (US)
18th March 2026
83AQI (US)
83AQI (US)
19th March 2026
81AQI (US)
81AQI (US)
20th March 2026
116AQI (US)
116AQI (US)
21st March 2026
134AQI (US)
134AQI (US)
22nd March 2026
119AQI (US)
119AQI (US)
23rd March 2026
154AQI (US)
154AQI (US)
24th March 2026
163AQI (US)
163AQI (US)
25th March 2026
159AQI (US)
159AQI (US)
26th March 2026
163AQI (US)
163AQI (US)
27th March 2026
116AQI (US)
116AQI (US)
28th March 2026
117AQI (US)
117AQI (US)
29th March 2026
121AQI (US)
121AQI (US)
30th March 2026
79AQI (US)
79AQI (US)
31st March 2026
74AQI (US)
74AQI (US)
1st April 2026
90AQI (US)
90AQI (US)
2nd April 2026
110AQI (US)
110AQI (US)
3rd April 2026
118AQI (US)
118AQI (US)
4th April 2026
89AQI (US)
89AQI (US)
5th April 2026
86AQI (US)
86AQI (US)
6th April 2026
46AQI (US)
46AQI (US)
7th April 2026
53AQI (US)
53AQI (US)
8th April 2026
92AQI (US)
92AQI (US)
9th April 2026
92AQI (US)
92AQI (US)
10th April 2026
86AQI (US)
86AQI (US)
11th April 2026
96AQI (US)
96AQI (US)
12th April 2026
130AQI (US)
130AQI (US)
13th April 2026
117AQI (US)
117AQI (US)
14th April 2026
119AQI (US)
119AQI (US)
15th April 2026
140AQI (US)
140AQI (US)
16th April 2026
121AQI (US)
121AQI (US)
17th April 2026
146AQI (US)
146AQI (US)
18th April 2026
125AQI (US)
125AQI (US)
19th April 2026
99AQI (US)
99AQI (US)
20th April 2026
71AQI (US)
71AQI (US)
21st April 2026
66AQI (US)
66AQI (US)
22nd April 2026
57AQI (US)
57AQI (US)
23rd April 2026
77AQI (US)
77AQI (US)
24th April 2026
65AQI (US)
65AQI (US)
25th April 2026
67AQI (US)
67AQI (US)
26th April 2026
85AQI (US)
85AQI (US)
27th April 2026
56AQI (US)
56AQI (US)
28th April 2026
54AQI (US)
54AQI (US)
29th April 2026
50AQI (US)
50AQI (US)
30th April 2026
71AQI (US)
71AQI (US)
1st May 2026
117AQI (US)
117AQI (US)
2nd May 2026
65AQI (US)
65AQI (US)
3rd May 2026
38AQI (US)
38AQI (US)
4th May 2026
50AQI (US)
50AQI (US)
5th May 2026
75AQI (US)
75AQI (US)
6th May 2026
78AQI (US)
78AQI (US)
7th May 2026
69AQI (US)
69AQI (US)
8th May 2026
62AQI (US)
62AQI (US)
9th May 2026
65AQI (US)
65AQI (US)
10th May 2026
77AQI (US)
77AQI (US)
11th May 2026
60AQI (US)
60AQI (US)
12th May 2026
99AQI (US)
99AQI (US)
13th May 2026
107AQI (US)
107AQI (US)
14th May 2026
109AQI (US)
109AQI (US)
15th May 2026
118AQI (US)
118AQI (US)
16th May 2026
76AQI (US)
76AQI (US)
17th May 2026
65AQI (US)
65AQI (US)
18th May 2026
59AQI (US)
59AQI (US)
19th May 2026
56AQI (US)
56AQI (US)
20th May 2026
65AQI (US)
65AQI (US)
21st May 2026
71AQI (US)
71AQI (US)
22nd May 2026
82AQI (US)
82AQI (US)
23rd May 2026
75AQI (US)
75AQI (US)
24th May 2026
73AQI (US)
73AQI (US)
25th May 2026
68AQI (US)
68AQI (US)
26th May 2026
51AQI (US)
51AQI (US)
27th May 2026
68AQI (US)
68AQI (US)
28th May 2026
45AQI (US)
45AQI (US)
29th May 2026
44AQI (US)
44AQI (US)
30th May 2026
51AQI (US)
51AQI (US)
31st May 2026
69AQI (US)
69AQI (US)
1st June 2026
74AQI (US)
74AQI (US)
2nd June 2026
89AQI (US)
89AQI (US)
3rd June 2026
78AQI (US)
78AQI (US)
4th June 2026
44AQI (US)
44AQI (US)
5th June 2026
35AQI (US)
35AQI (US)
6th June 2026
42AQI (US)
42AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
36AQI (US)
36AQI (US)
9th June 2026
38AQI (US)
38AQI (US)
10th June 2026
42AQI (US)
42AQI (US)
11th June 2026
41AQI (US)
41AQI (US)
12th June 2026
70AQI (US)
70AQI (US)
13th June 2026
67AQI (US)
67AQI (US)
14th June 2026
72AQI (US)
72AQI (US)
15th June 2026
112AQI (US)
112AQI (US)
16th June 2026
79AQI (US)
79AQI (US)
17th June 2026
69AQI (US)
69AQI (US)
18th June 2026
120AQI (US)
120AQI (US)
19th June 2026
95AQI (US)
95AQI (US)
20th June 2026
60AQI (US)
60AQI (US)
21st June 2026
54AQI (US)
54AQI (US)
22nd June 2026
59AQI (US)
59AQI (US)
23rd June 2026
72AQI (US)
72AQI (US)
24th June 2026
104AQI (US)
104AQI (US)
25th June 2026
72AQI (US)
72AQI (US)
26th June 2026
39AQI (US)
39AQI (US)
27th June 2026
53AQI (US)
53AQI (US)
28th June 2026
81AQI (US)
81AQI (US)
29th June 2026
72AQI (US)
72AQI (US)
30th June 2026
92AQI (US)
92AQI (US)
1st July 2026
77AQI (US)
77AQI (US)
2nd July 2026
101AQI (US)
101AQI (US)
3rd July 2026
100AQI (US)
100AQI (US)
4th July 2026
59AQI (US)
59AQI (US)
5th July 2026
43AQI (US)
43AQI (US)
6th July 2026
54AQI (US)
54AQI (US)
7th July 2026
60AQI (US)
60AQI (US)
8th July 2026
52AQI (US)
52AQI (US)
9th July 2026
68AQI (US)
68AQI (US)
10th July 2026
59AQI (US)
59AQI (US)
11th July 2026
79AQI (US)
79AQI (US)
12th July 2026
52AQI (US)
52AQI (US)
13th July 2026
52AQI (US)
52AQI (US)
14th July 2026
55AQI (US)
55AQI (US)
15th July 2026
53AQI (US)
53AQI (US)
16th July 2026
87AQI (US)
87AQI (US)
17th July 2026
43AQI (US)
43AQI (US)
18th July 2026
61AQI (US)
61AQI (US)
19th July 2026
83AQI (US)
83AQI (US)
20th July 2026
97AQI (US)
97AQI (US)
21st July 2026
57AQI (US)
57AQI (US)
22nd July 2026
85AQI (US)
85AQI (US)
23rd July 2026
60AQI (US)
60AQI (US)
24th July 2026
91AQI (US)
91AQI (US)
25th July 2026
76AQI (US)
76AQI (US)
26th July 2026
72AQI (US)
72AQI (US)
27th July 2026
69AQI (US)
69AQI (US)
28th July 2026
53AQI (US)
53AQI (US)
29th July 2026
36AQI (US)
36AQI (US)
30th July 2026
49AQI (US)
49AQI (US)
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
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
124AQI (US)
115AQI (US)
126AQI (US)
89AQI (US)
71AQI (US)
66AQI (US)
66AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202694AQI (US)
1
7
14
9
2
7
12
7
5
16
10
2
19
9
4
23
4
9
18
3
4
25
1
22
104
59
26
Highest AQI (US) recorded in
March126AQI (US)
Lowest AQI (US) recorded in
July66AQI (US)
202597AQI (US)
11
18
1
1
1
15
11
1
16
10
5
17
13
23
8
29
1
31
31
28
2
16
9
6
1
5
14
10
8
13
9
1
2
230
99
32
2
Highest AQI (US) recorded in
November128AQI (US)
Lowest AQI (US) recorded in
August62AQI (US)
202485AQI (US)
31
29
31
28
2
29
30
31
31
3
18
8
3
6
11
11
12
13
5
15
15
1
8
291
47
17
Highest AQI (US) recorded in
October124AQI (US)
Lowest AQI (US) recorded in
August65AQI (US)
2023101AQI (US)
1
9
10
7
1
9
11
8
3
7
3
3
31
1
55
28
18
1
Highest AQI (US) recorded in
March129AQI (US)
Lowest AQI (US) recorded in
December59AQI (US)
2022100AQI (US)
6
14
10
11
7
4
2
11
14
4
1
18
9
2
27
4
1
22
7
7
16
1
2
3
2
15
12
5
11
13
2
3
9
8
7
3
2
13
9
3
4
25
162
98
32
7
Highest AQI (US) recorded in
January134AQI (US)
Lowest AQI (US) recorded in
August61AQI (US)
2021111AQI (US)
8
10
8
4
10
12
4
2
4
7
17
1
2
12
12
1
1
1
17
10
1
2
13
16
1
9
16
6
20
11
2
17
10
1
4
13
8
6
5
6
11
7
1
1
12
9
8
1
22
148
122
53
12
3
Highest AQI (US) recorded in
March163AQI (US)
Lowest AQI (US) recorded in
July64AQI (US)
2020115AQI (US)
1
5
6
1
8
11
2
10
6
2
11
17
2
5
24
2
17
14
2
13
11
3
11
12
8
9
14
5
2
7
8
14
2
3
96
123
39
4
Highest AQI (US) recorded in
December144AQI (US)
Lowest AQI (US) recorded in
May99AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2020(Avg.)
115AQI (US)Least Polluted Year Recorded
2024(Avg.)
85AQI (US)Hejian's annual 2026 AQI (US) (94) shows an average percentage change of -6.5% (improved AQI (US)) compared to previous years: 2020 (115), 2021 (111), 2022 (100), 2023 (101), 2024 (85), 2025 (97).
