Yi County Environmental Protection Bureau, Gaobeidian, 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+
October Air Quality Analysis
Yi County Environmental Protection Bureau, Gaobeidian, Hebei, China
2021
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Oct 2024
183AQILowest AQI recorded on
1st Oct 2021
1AQISame Day Analysis (17th October ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 127 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 17th Oct - 18th Oct 2025
Yi County Environmental Protection Bureau, Gaobeidian, Hebei, China
AQI
Day
Night
.
6 AM17th Oct 2025
5 PM
5 AM18th Oct 2025
Day time
Avg. Highest Time
8AM17th Oct
146AQI
Avg. Lowest Time
3PM17th Oct
93AQI
Night time
Avg. Highest Time
6PM17th Oct
92AQI
Avg. Lowest Time
5AM18th Oct
61AQI
In the last 24 hours,
Yi County Environmental Protection Bureau's AQI reached its highest point of 146 at 8 AM during the Day, while the lowest point, 61, was recorded at 5 AM during the Night between 17th Oct and 18th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Yi County Environmental Protection Bureau, Gaobeidian, Hebei, China
SepOct
18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th
Day
Night
18th Sep 2025626 AMAQI
18th Sep 2025627 AMAQI
18th Sep 2025608 AMAQI
18th Sep 2025589 AMAQI
18th Sep 20255910 AMAQI
18th Sep 20255411 AMAQI
18th Sep 20254012 PMAQI
18th Sep 2025361 PMAQI
18th Sep 2025342 PMAQI
18th Sep 2025303 PMAQI
18th Sep 2025384 PMAQI
18th Sep 2025425 PMAQI
18th Sep 2025426 PMAQI
18th Sep 2025527 PMAQI
18th Sep 2025608 PMAQI
18th Sep 2025619 PMAQI
18th Sep 20256410 PMAQI
18th Sep 20256511 PMAQI
19th Sep 20256212 AMAQI
19th Sep 2025651 AMAQI
19th Sep 2025652 AMAQI
19th Sep 2025653 AMAQI
19th Sep 2025634 AMAQI
19th Sep 2025625 AMAQI
18°C13/23°C
19th Sep 2025636 AMAQI
19th Sep 2025637 AMAQI
19th Sep 2025618 AMAQI
19th Sep 2025629 AMAQI
19th Sep 20255810 AMAQI
19th Sep 20256011 AMAQI
19th Sep 20255812 PMAQI
19th Sep 2025551 PMAQI
19th Sep 2025542 PMAQI
19th Sep 2025503 PMAQI
19th Sep 2025504 PMAQI
19th Sep 2025515 PMAQI
19th Sep 2025526 PMAQI
19th Sep 2025557 PMAQI
19th Sep 2025608 PMAQI
19th Sep 2025619 PMAQI
19th Sep 20256010 PMAQI
19th Sep 20256011 PMAQI
20th Sep 20256312 AMAQI
20th Sep 2025641 AMAQI
20th Sep 2025642 AMAQI
20th Sep 2025623 AMAQI
20th Sep 2025614 AMAQI
20th Sep 2025605 AMAQI
17°C14/21°C
20th Sep 2025616 AMAQI
20th Sep 2025607 AMAQI
20th Sep 2025708 AMAQI
20th Sep 2025769 AMAQI
20th Sep 20257310 AMAQI
20th Sep 20257711 AMAQI
20th Sep 20257012 PMAQI
20th Sep 2025661 PMAQI
20th Sep 2025642 PMAQI
20th Sep 2025603 PMAQI
20th Sep 2025564 PMAQI
20th Sep 2025605 PMAQI
20th Sep 2025626 PMAQI
20th Sep 2025677 PMAQI
20th Sep 2025668 PMAQI
20th Sep 2025709 PMAQI
20th Sep 20257010 PMAQI
20th Sep 20257211 PMAQI
21st Sep 20257012 AMAQI
21st Sep 2025621 AMAQI
21st Sep 2025622 AMAQI
21st Sep 2025613 AMAQI
21st Sep 2025624 AMAQI
21st Sep 2025625 AMAQI
19°C13/26°C
21st Sep 2025636 AMAQI
21st Sep 2025627 AMAQI
21st Sep 2025848 AMAQI
21st Sep 2025859 AMAQI
21st Sep 20259810 AMAQI
21st Sep 20259711 AMAQI
21st Sep 20258612 PMAQI
21st Sep 2025881 PMAQI
21st Sep 2025932 PMAQI
21st Sep 2025903 PMAQI
21st Sep 2025964 PMAQI
21st Sep 2025945 PMAQI
21st Sep 2025916 PMAQI
21st Sep 2025837 PMAQI
21st Sep 2025778 PMAQI
21st Sep 2025779 PMAQI
21st Sep 20257810 PMAQI
21st Sep 20257611 PMAQI
22nd Sep 20257512 AMAQI
22nd Sep 2025621 AMAQI
22nd Sep 2025612 AMAQI
22nd Sep 2025643 AMAQI
22nd Sep 2025704 AMAQI
22nd Sep 2025685 AMAQI
21°C16/25°C
22nd Sep 2025706 AMAQI
22nd Sep 2025687 AMAQI
22nd Sep 2025698 AMAQI
22nd Sep 2025649 AMAQI
22nd Sep 20256110 AMAQI
22nd Sep 20255811 AMAQI
22nd Sep 20255712 PMAQI
22nd Sep 2025581 PMAQI
22nd Sep 2025602 PMAQI
22nd Sep 2025603 PMAQI
22nd Sep 2025574 PMAQI
22nd Sep 2025595 PMAQI
22nd Sep 2025576 PMAQI
22nd Sep 2025587 PMAQI
22nd Sep 2025628 PMAQI
22nd Sep 2025669 PMAQI
22nd Sep 20256610 PMAQI
22nd Sep 20256711 PMAQI
23rd Sep 20257012 AMAQI
23rd Sep 2025651 AMAQI
23rd Sep 2025642 AMAQI
23rd Sep 2025643 AMAQI
23rd Sep 2025634 AMAQI
23rd Sep 2025645 AMAQI
17°C15/20°C
23rd Sep 2025646 AMAQI
23rd Sep 2025647 AMAQI
23rd Sep 2025748 AMAQI
23rd Sep 2025829 AMAQI
23rd Sep 20258510 AMAQI
23rd Sep 20258211 AMAQI
23rd Sep 20258112 PMAQI
23rd Sep 2025781 PMAQI
23rd Sep 2025782 PMAQI
23rd Sep 2025793 PMAQI
23rd Sep 2025844 PMAQI
23rd Sep 2025845 PMAQI
23rd Sep 2025936 PMAQI
23rd Sep 2025727 PMAQI
23rd Sep 2025718 PMAQI
23rd Sep 2025779 PMAQI
23rd Sep 20257810 PMAQI
23rd Sep 20257911 PMAQI
24th Sep 20257612 AMAQI
24th Sep 2025661 AMAQI
24th Sep 2025622 AMAQI
24th Sep 2025643 AMAQI
24th Sep 2025664 AMAQI
24th Sep 2025665 AMAQI
16°C14/18°C
24th Sep 2025656 AMAQI
24th Sep 2025667 AMAQI
24th Sep 2025938 AMAQI
24th Sep 2025979 AMAQI
24th Sep 202511310 AMAQI
24th Sep 202511311 AMAQI
24th Sep 202510112 PMAQI
24th Sep 2025911 PMAQI
24th Sep 2025822 PMAQI
24th Sep 2025733 PMAQI
24th Sep 2025724 PMAQI
24th Sep 2025755 PMAQI
24th Sep 2025756 PMAQI
24th Sep 2025737 PMAQI
24th Sep 2025708 PMAQI
24th Sep 2025769 PMAQI
24th Sep 20257710 PMAQI
24th Sep 20258011 PMAQI
25th Sep 20257812 AMAQI
25th Sep 2025661 AMAQI
25th Sep 2025642 AMAQI
25th Sep 2025683 AMAQI
25th Sep 2025744 AMAQI
25th Sep 2025745 AMAQI
19°C12/26°C
25th Sep 2025746 AMAQI
25th Sep 2025727 AMAQI
25th Sep 2025988 AMAQI
25th Sep 20251069 AMAQI
25th Sep 202511410 AMAQI
25th Sep 202511011 AMAQI
25th Sep 20257812 PMAQI
25th Sep 2025971 PMAQI
25th Sep 20251062 PMAQI
25th Sep 20251003 PMAQI
25th Sep 2025974 PMAQI
25th Sep 2025845 PMAQI
25th Sep 2025806 PMAQI
25th Sep 2025867 PMAQI
25th Sep 2025868 PMAQI
25th Sep 20251179 PMAQI
25th Sep 202512810 PMAQI
25th Sep 202512611 PMAQI
26th Sep 202511512 AMAQI
26th Sep 20251261 AMAQI
26th Sep 20251542 AMAQI
26th Sep 20251493 AMAQI
26th Sep 20251524 AMAQI
26th Sep 20251545 AMAQI
21°C16/27°C
26th Sep 20251526 AMAQI
26th Sep 20251487 AMAQI
26th Sep 20251308 AMAQI
26th Sep 20251199 AMAQI
26th Sep 202510610 AMAQI
26th Sep 202510611 AMAQI
26th Sep 20259612 PMAQI
26th Sep 2025831 PMAQI
26th Sep 2025782 PMAQI
26th Sep 2025773 PMAQI
26th Sep 2025894 PMAQI
26th Sep 2025845 PMAQI
26th Sep 2025866 PMAQI
26th Sep 2025837 PMAQI
26th Sep 2025858 PMAQI
26th Sep 2025919 PMAQI
26th Sep 20259610 PMAQI
26th Sep 202510411 PMAQI
27th Sep 202511712 AMAQI
27th Sep 20251301 AMAQI
27th Sep 20251282 AMAQI
27th Sep 20251083 AMAQI
27th Sep 2025904 AMAQI
27th Sep 2025785 AMAQI
22°C18/27°C
27th Sep 2025746 AMAQI
27th Sep 2025697 AMAQI
27th Sep 2025778 AMAQI
27th Sep 2025839 AMAQI
27th Sep 20257910 AMAQI
27th Sep 20257411 AMAQI
27th Sep 20256712 PMAQI
27th Sep 2025631 PMAQI
27th Sep 2025592 PMAQI
27th Sep 2025563 PMAQI
27th Sep 2025514 PMAQI
27th Sep 2025515 PMAQI
27th Sep 2025516 PMAQI
27th Sep 2025527 PMAQI
27th Sep 2025558 PMAQI
27th Sep 2025629 PMAQI
27th Sep 20256710 PMAQI
27th Sep 20257511 PMAQI
28th Sep 20258612 AMAQI
28th Sep 20251021 AMAQI
28th Sep 20251202 AMAQI
28th Sep 20251303 AMAQI
28th Sep 20251324 AMAQI
28th Sep 20251385 AMAQI
18°C16/20°C
28th Sep 20251416 AMAQI
28th Sep 20251357 AMAQI
28th Sep 20251358 AMAQI
28th Sep 20251409 AMAQI
28th Sep 202515410 AMAQI
28th Sep 202515611 AMAQI
28th Sep 202515612 PMAQI
28th Sep 20251511 PMAQI
28th Sep 20251212 PMAQI
28th Sep 2025813 PMAQI
28th Sep 2025614 PMAQI
28th Sep 2025575 PMAQI
28th Sep 2025586 PMAQI
28th Sep 2025597 PMAQI
28th Sep 2025698 PMAQI
28th Sep 2025939 PMAQI
28th Sep 202511010 PMAQI
28th Sep 202512111 PMAQI
29th Sep 202512712 AMAQI
29th Sep 20251161 AMAQI
29th Sep 20251142 AMAQI
29th Sep 20251153 AMAQI
29th Sep 20251104 AMAQI
29th Sep 2025985 AMAQI
21°C15/28°C
29th Sep 2025976 AMAQI
29th Sep 2025977 AMAQI
29th Sep 2025998 AMAQI
29th Sep 2025999 AMAQI
29th Sep 202510410 AMAQI
29th Sep 202510211 AMAQI
29th Sep 202510512 PMAQI
29th Sep 2025971 PMAQI
29th Sep 2025832 PMAQI
29th Sep 2025813 PMAQI
29th Sep 2025724 PMAQI
29th Sep 2025635 PMAQI
29th Sep 2025626 PMAQI
29th Sep 2025667 PMAQI
29th Sep 2025708 PMAQI
29th Sep 2025749 PMAQI
29th Sep 20258410 PMAQI
29th Sep 20258911 PMAQI
30th Sep 20257412 AMAQI
30th Sep 2025781 AMAQI
30th Sep 2025942 AMAQI
30th Sep 20251003 AMAQI
30th Sep 2025964 AMAQI
30th Sep 2025985 AMAQI
22°C17/28°C
30th Sep 20251016 AMAQI
30th Sep 20251147 AMAQI
30th Sep 20251168 AMAQI
30th Sep 20251189 AMAQI
30th Sep 202511510 AMAQI
30th Sep 202511711 AMAQI
30th Sep 202510212 PMAQI
30th Sep 2025881 PMAQI
30th Sep 2025902 PMAQI
30th Sep 2025803 PMAQI
30th Sep 2025794 PMAQI
30th Sep 2025755 PMAQI
30th Sep 2025756 PMAQI
30th Sep 2025677 PMAQI
30th Sep 2025758 PMAQI
30th Sep 2025999 PMAQI
30th Sep 20259810 PMAQI
30th Sep 202511011 PMAQI
1st Oct 202513012 AMAQI
1st Oct 20251421 AMAQI
1st Oct 20251382 AMAQI
1st Oct 20251203 AMAQI
1st Oct 20251104 AMAQI
1st Oct 20251165 AMAQI
22°C17/29°C
1st Oct 20251126 AMAQI
1st Oct 20251107 AMAQI
1st Oct 20251168 AMAQI
1st Oct 20251079 AMAQI
1st Oct 202510810 AMAQI
1st Oct 202512311 AMAQI
1st Oct 202513612 PMAQI
1st Oct 20251371 PMAQI
1st Oct 20251062 PMAQI
1st Oct 20251073 PMAQI
1st Oct 20251114 PMAQI
1st Oct 20251015 PMAQI
1st Oct 20251016 PMAQI
1st Oct 2025907 PMAQI
1st Oct 20251008 PMAQI
1st Oct 20251059 PMAQI
1st Oct 202512610 PMAQI
1st Oct 202512911 PMAQI
2nd Oct 202513412 AMAQI
2nd Oct 20251421 AMAQI
2nd Oct 20251332 AMAQI
2nd Oct 20251103 AMAQI
2nd Oct 2025834 AMAQI
2nd Oct 2025775 AMAQI
23°C18/28°C
2nd Oct 2025736 AMAQI
2nd Oct 2025807 AMAQI
2nd Oct 2025718 AMAQI
2nd Oct 2025619 AMAQI
2nd Oct 20256410 AMAQI
2nd Oct 20257011 AMAQI
2nd Oct 20256312 PMAQI
2nd Oct 2025621 PMAQI
2nd Oct 2025602 PMAQI
2nd Oct 2025653 PMAQI
2nd Oct 2025664 PMAQI
2nd Oct 2025635 PMAQI
2nd Oct 2025666 PMAQI
2nd Oct 2025677 PMAQI
2nd Oct 2025698 PMAQI
2nd Oct 2025769 PMAQI
2nd Oct 20257810 PMAQI
2nd Oct 20258811 PMAQI
3rd Oct 20259412 AMAQI
3rd Oct 20251021 AMAQI
3rd Oct 20251102 AMAQI
3rd Oct 20251033 AMAQI
3rd Oct 20251104 AMAQI
3rd Oct 20251145 AMAQI
22°C17/27°C
3rd Oct 20251286 AMAQI
3rd Oct 20251227 AMAQI
3rd Oct 20251368 AMAQI
3rd Oct 20251359 AMAQI
3rd Oct 202513810 AMAQI
3rd Oct 202514011 AMAQI
3rd Oct 202514112 PMAQI
3rd Oct 20251461 PMAQI
3rd Oct 20251272 PMAQI
3rd Oct 20251243 PMAQI
3rd Oct 2025984 PMAQI
3rd Oct 2025925 PMAQI
3rd Oct 2025866 PMAQI
3rd Oct 2025787 PMAQI
3rd Oct 20251228 PMAQI
3rd Oct 20251299 PMAQI
3rd Oct 202514510 PMAQI
3rd Oct 202514611 PMAQI
4th Oct 202515112 AMAQI
4th Oct 20251471 AMAQI
4th Oct 20251452 AMAQI
4th Oct 20251433 AMAQI
4th Oct 20251434 AMAQI
4th Oct 20251495 AMAQI
20°C17/23°C
4th Oct 20251526 AMAQI
4th Oct 20251517 AMAQI
4th Oct 20251588 AMAQI
4th Oct 20251589 AMAQI
4th Oct 202515510 AMAQI
4th Oct 202515711 AMAQI
4th Oct 202515512 PMAQI
4th Oct 20251451 PMAQI
4th Oct 20251322 PMAQI
4th Oct 20251143 PMAQI
4th Oct 20251104 PMAQI
4th Oct 20251105 PMAQI
4th Oct 20251116 PMAQI
4th Oct 20251087 PMAQI
4th Oct 2025968 PMAQI
4th Oct 20251079 PMAQI
4th Oct 202510910 PMAQI
4th Oct 202512611 PMAQI
5th Oct 202514612 AMAQI
5th Oct 20251371 AMAQI
5th Oct 20251422 AMAQI
5th Oct 20251313 AMAQI
5th Oct 20251474 AMAQI
5th Oct 20251375 AMAQI
20°C16/24°C
5th Oct 20251336 AMAQI
5th Oct 20251207 AMAQI
5th Oct 20251428 AMAQI
5th Oct 20251439 AMAQI
5th Oct 202514710 AMAQI
5th Oct 202514011 AMAQI
5th Oct 202513612 PMAQI
5th Oct 20251201 PMAQI
5th Oct 20251042 PMAQI
5th Oct 2025943 PMAQI
5th Oct 2025764 PMAQI
5th Oct 2025825 PMAQI
5th Oct 2025796 PMAQI
5th Oct 2025837 PMAQI
5th Oct 2025758 PMAQI
5th Oct 2025829 PMAQI
5th Oct 20258210 PMAQI
5th Oct 20257711 PMAQI
6th Oct 20257012 AMAQI
6th Oct 2025681 AMAQI
6th Oct 2025682 AMAQI
6th Oct 2025673 AMAQI
6th Oct 2025644 AMAQI
6th Oct 2025635 AMAQI
18°C14/21°C
6th Oct 2025616 AMAQI
6th Oct 2025577 AMAQI
6th Oct 2025578 AMAQI
6th Oct 2025599 AMAQI
6th Oct 20256310 AMAQI
6th Oct 20256611 AMAQI
6th Oct 20256612 PMAQI
6th Oct 2025661 PMAQI
6th Oct 2025632 PMAQI
6th Oct 2025663 PMAQI
6th Oct 2025664 PMAQI
6th Oct 2025675 PMAQI
6th Oct 2025666 PMAQI
6th Oct 2025697 PMAQI
6th Oct 2025758 PMAQI
6th Oct 2025859 PMAQI
6th Oct 20258610 PMAQI
6th Oct 20258611 PMAQI
7th Oct 20258512 AMAQI
7th Oct 2025841 AMAQI
14°C12/17°C
7th Oct 2025647 PMAQI
7th Oct 20251118 PMAQI
7th Oct 20251159 PMAQI
7th Oct 202512410 PMAQI
7th Oct 202512011 PMAQI
8th Oct 202513812 AMAQI
8th Oct 20251311 AMAQI
8th Oct 20251352 AMAQI
8th Oct 20251353 AMAQI
8th Oct 20251364 AMAQI
8th Oct 20251365 AMAQI
18°C14/23°C
8th Oct 20251456 AMAQI
8th Oct 20251427 AMAQI
8th Oct 20251218 AMAQI
8th Oct 20251009 AMAQI
8th Oct 20258710 AMAQI
8th Oct 20259211 AMAQI
8th Oct 20257112 PMAQI
8th Oct 2025711 PMAQI
8th Oct 2025612 PMAQI
8th Oct 2025583 PMAQI
8th Oct 2025564 PMAQI
8th Oct 2025525 PMAQI
8th Oct 2025546 PMAQI
8th Oct 2025567 PMAQI
8th Oct 2025598 PMAQI
8th Oct 2025599 PMAQI
8th Oct 20256210 PMAQI
8th Oct 20255811 PMAQI
9th Oct 20255612 AMAQI
9th Oct 2025521 AMAQI
9th Oct 2025502 AMAQI
9th Oct 2025483 AMAQI
9th Oct 2025444 AMAQI
9th Oct 2025415 AMAQI
12°C8/18°C
9th Oct 2025506 AMAQI
9th Oct 2025467 AMAQI
9th Oct 2025498 AMAQI
9th Oct 2025509 AMAQI
9th Oct 20255210 AMAQI
9th Oct 20254611 AMAQI
9th Oct 20255412 PMAQI
9th Oct 2025541 PMAQI
9th Oct 2025562 PMAQI
9th Oct 2025563 PMAQI
9th Oct 2025574 PMAQI
9th Oct 2025555 PMAQI
9th Oct 2025546 PMAQI
9th Oct 2025607 PMAQI
9th Oct 2025608 PMAQI
9th Oct 2025579 PMAQI
9th Oct 20254510 PMAQI
9th Oct 20254911 PMAQI
10th Oct 20255012 AMAQI
10th Oct 2025481 AMAQI
10th Oct 2025512 AMAQI
10th Oct 2025573 AMAQI
10th Oct 2025504 AMAQI
10th Oct 2025495 AMAQI
9°C8/10°C
10th Oct 2025466 AMAQI
10th Oct 2025517 AMAQI
10th Oct 2025538 AMAQI
10th Oct 2025559 AMAQI
10th Oct 20255410 AMAQI
10th Oct 20255611 AMAQI
10th Oct 20255512 PMAQI
10th Oct 2025571 PMAQI
10th Oct 2025552 PMAQI
10th Oct 2025533 PMAQI
10th Oct 2025524 PMAQI
10th Oct 2025545 PMAQI
10th Oct 2025566 PMAQI
10th Oct 2025587 PMAQI
10th Oct 2025518 PMAQI
10th Oct 2025529 PMAQI
10th Oct 20254810 PMAQI
10th Oct 20255211 PMAQI
11th Oct 20256312 AMAQI
11th Oct 2025731 AMAQI
11th Oct 2025662 AMAQI
11th Oct 2025613 AMAQI
11th Oct 2025574 AMAQI
11th Oct 2025565 AMAQI
10°C9/11°C
11th Oct 2025556 AMAQI
11th Oct 2025577 AMAQI
11th Oct 2025598 AMAQI
11th Oct 2025589 AMAQI
11th Oct 20255610 AMAQI
11th Oct 20255911 AMAQI
11th Oct 20256312 PMAQI
11th Oct 2025601 PMAQI
11th Oct 2025482 PMAQI
11th Oct 2025463 PMAQI
11th Oct 2025494 PMAQI
11th Oct 2025475 PMAQI
11th Oct 2025546 PMAQI
11th Oct 2025487 PMAQI
11th Oct 2025558 PMAQI
11th Oct 2025639 PMAQI
11th Oct 20256510 PMAQI
11th Oct 20257211 PMAQI
12th Oct 20257712 AMAQI
12th Oct 2025821 AMAQI
12th Oct 2025882 AMAQI
12th Oct 2025833 AMAQI
12th Oct 2025884 AMAQI
12th Oct 20251005 AMAQI
13°C10/18°C
12th Oct 2025976 AMAQI
12th Oct 2025927 AMAQI
12th Oct 2025888 AMAQI
12th Oct 2025849 AMAQI
12th Oct 20258110 AMAQI
12th Oct 20258911 AMAQI
12th Oct 20258812 PMAQI
12th Oct 2025901 PMAQI
12th Oct 2025872 PMAQI
12th Oct 2025833 PMAQI
12th Oct 2025684 PMAQI
12th Oct 2025705 PMAQI
12th Oct 2025746 PMAQI
12th Oct 2025737 PMAQI
12th Oct 2025798 PMAQI
12th Oct 2025869 PMAQI
12th Oct 20259010 PMAQI
12th Oct 20258911 PMAQI
13th Oct 20259712 AMAQI
13th Oct 20251031 AMAQI
13th Oct 2025932 AMAQI
13th Oct 2025943 AMAQI
13th Oct 2025924 AMAQI
13th Oct 20251065 AMAQI
14°C12/17°C
13th Oct 20251016 AMAQI
13th Oct 20251067 AMAQI
13th Oct 20251068 AMAQI
13th Oct 20251189 AMAQI
13th Oct 202512610 AMAQI
13th Oct 202512011 AMAQI
13th Oct 202511512 PMAQI
13th Oct 20251091 PMAQI
13th Oct 2025902 PMAQI
13th Oct 2025743 PMAQI
13th Oct 2025704 PMAQI
13th Oct 2025675 PMAQI
13th Oct 2025666 PMAQI
13th Oct 2025647 PMAQI
13th Oct 2025628 PMAQI
13th Oct 2025629 PMAQI
13th Oct 20256510 PMAQI
13th Oct 20257411 PMAQI
14th Oct 20258012 AMAQI
14th Oct 2025821 AMAQI
14th Oct 2025912 AMAQI
14th Oct 2025943 AMAQI
14th Oct 2025944 AMAQI
14th Oct 2025915 AMAQI
15°C11/20°C
14th Oct 2025996 AMAQI
14th Oct 2025997 AMAQI
14th Oct 20251198 AMAQI
14th Oct 20251189 AMAQI
14th Oct 202513410 AMAQI
14th Oct 202513411 AMAQI
14th Oct 202513012 PMAQI
14th Oct 20251201 PMAQI
14th Oct 20251052 PMAQI
14th Oct 20251093 PMAQI
14th Oct 20251064 PMAQI
14th Oct 2025805 PMAQI
14th Oct 2025736 PMAQI
14th Oct 2025857 PMAQI
14th Oct 2025888 PMAQI
14th Oct 20251049 PMAQI
14th Oct 202511910 PMAQI
14th Oct 202511811 PMAQI
15th Oct 202511012 AMAQI
15th Oct 20251331 AMAQI
15th Oct 20251272 AMAQI
15th Oct 20251393 AMAQI
15th Oct 20251414 AMAQI
15th Oct 20251465 AMAQI
16°C12/21°C
15th Oct 20251526 AMAQI
15th Oct 20251427 AMAQI
15th Oct 20251558 AMAQI
15th Oct 20251619 AMAQI
15th Oct 202515910 AMAQI
15th Oct 202516111 AMAQI
15th Oct 202516312 PMAQI
15th Oct 20251611 PMAQI
15th Oct 20251592 PMAQI
15th Oct 20251493 PMAQI
15th Oct 20251484 PMAQI
15th Oct 20251535 PMAQI
15th Oct 20251406 PMAQI
15th Oct 20251487 PMAQI
15th Oct 20251568 PMAQI
15th Oct 20251589 PMAQI
15th Oct 202515910 PMAQI
15th Oct 202516011 PMAQI
16th Oct 202516912 AMAQI
16th Oct 20251721 AMAQI
16th Oct 20251752 AMAQI
16th Oct 20251723 AMAQI
16th Oct 20251724 AMAQI
16th Oct 20251725 AMAQI
16°C14/20°C
16th Oct 20251736 AMAQI
16th Oct 20251647 AMAQI
16th Oct 20251608 AMAQI
16th Oct 20251499 AMAQI
16th Oct 202515510 AMAQI
16th Oct 202515111 AMAQI
16th Oct 202514412 PMAQI
16th Oct 20251411 PMAQI
16th Oct 20251292 PMAQI
16th Oct 20251213 PMAQI
16th Oct 20251224 PMAQI
16th Oct 20251375 PMAQI
16th Oct 20251216 PMAQI
16th Oct 20251257 PMAQI
16th Oct 20251328 PMAQI
16th Oct 20251309 PMAQI
16th Oct 202513410 PMAQI
16th Oct 202513311 PMAQI
17th Oct 202514112 AMAQI
17th Oct 20251441 AMAQI
17th Oct 20251422 AMAQI
17th Oct 20251403 AMAQI
17th Oct 20251334 AMAQI
17th Oct 20251305 AMAQI
13°C11/14°C
17th Oct 20251386 AMAQI
17th Oct 20251377 AMAQI
17th Oct 20251468 AMAQI
17th Oct 20251299 AMAQI
17th Oct 202513910 AMAQI
17th Oct 202514011 AMAQI
17th Oct 202512012 PMAQI
17th Oct 20251121 PMAQI
17th Oct 20251052 PMAQI
17th Oct 2025933 PMAQI
17th Oct 2025944 PMAQI
17th Oct 2025945 PMAQI
17th Oct 2025926 PMAQI
17th Oct 2025797 PMAQI
17th Oct 2025778 PMAQI
17th Oct 2025739 PMAQI
17th Oct 20256710 PMAQI
17th Oct 20257611 PMAQI
18th Oct 20256712 AMAQI
18th Oct 2025651 AMAQI
18th Oct 2025702 AMAQI
18th Oct 2025723 AMAQI
18th Oct 2025684 AMAQI
18th Oct 2025615 AMAQI
12°C9/15°C
18th Oct 2025666 AMAQI
6 AM18th Oct 2025617 AMAQI
18th Oct 2025608 AMAQI
18th Oct 2025629 AMAQI
18th Oct 20255910 AMAQI
18th Oct 20255711 AMAQI
11 AM18th Oct 20255512 PMAQI
18th Oct 2025541 PMAQI
18th Oct 2025512 PMAQI
18th Oct 2025513 PMAQI
18th Oct 2025534 PMAQI
18th Oct 2025505 PMAQI
5 PM11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
8 AM - 11 AM
99AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
3 PM - 5 PM
77AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 11 AM (Avg. 99), while the lowest AQI was between 3 PM to 5 PM (Avg. 77).
Night time
Avg. Highest Time
12 AM - 5 AM
96AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
6 PM - 7 PM
75AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 96), while the lowest AQI was between 6 PM to 7 PM (Avg. 75).
2025 Days Vs Air Quality
Yi County Environmental Protection Bureau, Gaobeidian, Hebei, China
2025
1%
3
78%
225
17%
50
4%
11
0.3%
1
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Good
3 DaysModerate
225 DaysPoor
50 DaysUnhealthy
11 DaysSevere
1 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 1%
Health Risk Level:
Extreme
In 2025, 1% of 291 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
Yi County Environmental Protection Bureau, Gaobeidian, Hebei, China
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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
104AQI
104AQI
2nd January 2025
92AQI
92AQI
3rd January 2025
108AQI
108AQI
4th January 2025
127AQI
127AQI
5th January 2025
88AQI
88AQI
6th January 2025
71AQI
71AQI
7th January 2025
57AQI
57AQI
8th January 2025
49AQI
49AQI
9th January 2025
56AQI
56AQI
10th January 2025
68AQI
68AQI
11th January 2025
83AQI
83AQI
12th January 2025
72AQI
72AQI
13th January 2025
103AQI
103AQI
14th January 2025
55AQI
55AQI
15th January 2025
75AQI
75AQI
16th January 2025
69AQI
69AQI
17th January 2025
115AQI
115AQI
18th January 2025
137AQI
137AQI
19th January 2025
100AQI
100AQI
20th January 2025
152AQI
152AQI
21st January 2025
124AQI
124AQI
22nd January 2025
127AQI
127AQI
23rd January 2025
143AQI
143AQI
24th January 2025
157AQI
157AQI
25th January 2025
165AQI
165AQI
26th January 2025
133AQI
133AQI
27th January 2025
75AQI
75AQI
28th January 2025
94AQI
94AQI
29th January 2025
195AQI
195AQI
30th January 2025
125AQI
125AQI
31st January 2025
166AQI
166AQI
1st February 2025
147AQI
147AQI
2nd February 2025
136AQI
136AQI
3rd February 2025
85AQI
85AQI
4th February 2025
82AQI
82AQI
5th February 2025
58AQI
58AQI
6th February 2025
73AQI
73AQI
7th February 2025
42AQI
42AQI
8th February 2025
57AQI
57AQI
9th February 2025
68AQI
68AQI
10th February 2025
120AQI
120AQI
11th February 2025
140AQI
140AQI
12th February 2025
87AQI
87AQI
13th February 2025
115AQI
115AQI
14th February 2025
127AQI
127AQI
15th February 2025
129AQI
129AQI
16th February 2025
78AQI
78AQI
17th February 2025
72AQI
72AQI
18th February 2025
90AQI
90AQI
19th February 2025
76AQI
76AQI
20th February 2025
84AQI
84AQI
21st February 2025
82AQI
82AQI
22nd February 2025
70AQI
70AQI
23rd February 2025
52AQI
52AQI
24th February 2025
82AQI
82AQI
25th February 2025
68AQI
68AQI
26th February 2025
101AQI
101AQI
27th February 2025
141AQI
141AQI
28th February 2025
160AQI
160AQI
1st March 2025
206AQI
206AQI
2nd March 2025
141AQI
141AQI
3rd March 2025
104AQI
104AQI
4th March 2025
97AQI
97AQI
5th March 2025
130AQI
130AQI
6th March 2025
76AQI
76AQI
7th March 2025
137AQI
137AQI
8th March 2025
138AQI
138AQI
9th March 2025
161AQI
161AQI
10th March 2025
168AQI
168AQI
11th March 2025
181AQI
181AQI
12th March 2025
110AQI
110AQI
13th March 2025
159AQI
159AQI
14th March 2025
106AQI
106AQI
15th March 2025
110AQI
110AQI
16th March 2025
63AQI
63AQI
17th March 2025
71AQI
71AQI
18th March 2025
62AQI
62AQI
19th March 2025
72AQI
72AQI
20th March 2025
52AQI
52AQI
21st March 2025
57AQI
57AQI
22nd March 2025
66AQI
66AQI
23rd March 2025
118AQI
118AQI
24th March 2025
76AQI
76AQI
25th March 2025
88AQI
88AQI
26th March 2025
91AQI
91AQI
27th March 2025
73AQI
73AQI
28th March 2025
75AQI
75AQI
29th March 2025
62AQI
62AQI
30th March 2025
75AQI
75AQI
31st March 2025
82AQI
82AQI
1st April 2025
69AQI
69AQI
2nd April 2025
65AQI
65AQI
3rd April 2025
87AQI
87AQI
4th April 2025
102AQI
102AQI
5th April 2025
65AQI
65AQI
6th April 2025
99AQI
99AQI
7th April 2025
89AQI
89AQI
8th April 2025
93AQI
93AQI
9th April 2025
87AQI
87AQI
10th April 2025
98AQI
98AQI
11th April 2025
144AQI
144AQI
12th April 2025
87AQI
87AQI
13th April 2025
87AQI
87AQI
14th April 2025
70AQI
70AQI
15th April 2025
79AQI
79AQI
16th April 2025
116AQI
116AQI
17th April 2025
99AQI
99AQI
18th April 2025
88AQI
88AQI
19th April 2025
93AQI
93AQI
20th April 2025
106AQI
106AQI
21st April 2025
115AQI
115AQI
22nd April 2025
75AQI
75AQI
23rd April 2025
85AQI
85AQI
24th April 2025
63AQI
63AQI
25th April 2025
85AQI
85AQI
26th April 2025
113AQI
113AQI
27th April 2025
73AQI
73AQI
28th April 2025
81AQI
81AQI
29th April 2025
80AQI
80AQI
30th April 2025
79AQI
79AQI
1st May 2025
67AQI
67AQI
2nd May 2025
78AQI
78AQI
3rd May 2025
58AQI
58AQI
4th May 2025
79AQI
79AQI
5th May 2025
94AQI
94AQI
6th May 2025
76AQI
76AQI
7th May 2025
99AQI
99AQI
8th May 2025
108AQI
108AQI
9th May 2025
71AQI
71AQI
10th May 2025
86AQI
86AQI
11th May 2025
80AQI
80AQI
12th May 2025
95AQI
95AQI
13th May 2025
97AQI
97AQI
14th May 2025
72AQI
72AQI
15th May 2025
75AQI
75AQI
16th May 2025
98AQI
98AQI
17th May 2025
69AQI
69AQI
18th May 2025
86AQI
86AQI
19th May 2025
91AQI
91AQI
20th May 2025
114AQI
114AQI
21st May 2025
100AQI
100AQI
22nd May 2025
107AQI
107AQI
23rd May 2025
101AQI
101AQI
24th May 2025
82AQI
82AQI
25th May 2025
89AQI
89AQI
26th May 2025
87AQI
87AQI
27th May 2025
96AQI
96AQI
28th May 2025
93AQI
93AQI
29th May 2025
94AQI
94AQI
30th May 2025
97AQI
97AQI
31st May 2025
109AQI
109AQI
1st June 2025
114AQI
114AQI
2nd June 2025
89AQI
89AQI
3rd June 2025
63AQI
63AQI
4th June 2025
61AQI
61AQI
5th June 2025
73AQI
73AQI
6th June 2025
70AQI
70AQI
7th June 2025
69AQI
69AQI
8th June 2025
72AQI
72AQI
9th June 2025
74AQI
74AQI
10th June 2025
65AQI
65AQI
11th June 2025
76AQI
76AQI
12th June 2025
81AQI
81AQI
13th June 2025
84AQI
84AQI
14th June 2025
79AQI
79AQI
15th June 2025
61AQI
61AQI
16th June 2025
56AQI
56AQI
17th June 2025
67AQI
67AQI
18th June 2025
76AQI
76AQI
19th June 2025
67AQI
67AQI
20th June 2025
65AQI
65AQI
21st June 2025
62AQI
62AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
66AQI
66AQI
24th June 2025
67AQI
67AQI
25th June 2025
72AQI
72AQI
26th June 2025
72AQI
72AQI
27th June 2025
78AQI
78AQI
28th June 2025
77AQI
77AQI
29th June 2025
76AQI
76AQI
30th June 2025
76AQI
76AQI
1st July 2025
67AQI
67AQI
2nd July 2025
70AQI
70AQI
3rd July 2025
62AQI
62AQI
4th July 2025
68AQI
68AQI
5th July 2025
57AQI
57AQI
6th July 2025
56AQI
56AQI
7th July 2025
61AQI
61AQI
8th July 2025
64AQI
64AQI
9th July 2025
70AQI
70AQI
10th July 2025
70AQI
70AQI
11th July 2025
80AQI
80AQI
12th July 2025
80AQI
80AQI
13th July 2025
66AQI
66AQI
14th July 2025
72AQI
72AQI
15th July 2025
73AQI
73AQI
16th July 2025
69AQI
69AQI
17th July 2025
61AQI
61AQI
18th July 2025
66AQI
66AQI
19th July 2025
74AQI
74AQI
20th July 2025
63AQI
63AQI
21st July 2025
66AQI
66AQI
22nd July 2025
68AQI
68AQI
23rd July 2025
65AQI
65AQI
24th July 2025
66AQI
66AQI
25th July 2025
69AQI
69AQI
26th July 2025
69AQI
69AQI
27th July 2025
67AQI
67AQI
28th July 2025
67AQI
67AQI
29th July 2025
49AQI
49AQI
30th July 2025
56AQI
56AQI
31st July 2025
61AQI
61AQI
1st August 2025
67AQI
67AQI
2nd August 2025
68AQI
68AQI
3rd August 2025
62AQI
62AQI
4th August 2025
63AQI
63AQI
5th August 2025
61AQI
61AQI
6th August 2025
69AQI
69AQI
7th August 2025
68AQI
68AQI
8th August 2025
63AQI
63AQI
9th August 2025
55AQI
55AQI
10th August 2025
59AQI
59AQI
11th August 2025
63AQI
63AQI
12th August 2025
65AQI
65AQI
13th August 2025
60AQI
60AQI
14th August 2025
66AQI
66AQI
15th August 2025
69AQI
69AQI
16th August 2025
55AQI
55AQI
17th August 2025
61AQI
61AQI
18th August 2025
64AQI
64AQI
19th August 2025
59AQI
59AQI
20th August 2025
58AQI
58AQI
21st August 2025
56AQI
56AQI
22nd August 2025
54AQI
54AQI
23rd August 2025
54AQI
54AQI
24th August 2025
56AQI
56AQI
25th August 2025
55AQI
55AQI
26th August 2025
61AQI
61AQI
27th August 2025
58AQI
58AQI
28th August 2025
53AQI
53AQI
29th August 2025
63AQI
63AQI
30th August 2025
62AQI
62AQI
31st August 2025
58AQI
58AQI
1st September 2025
59AQI
59AQI
2nd September 2025
71AQI
71AQI
3rd September 2025
73AQI
73AQI
4th September 2025
72AQI
72AQI
5th September 2025
76AQI
76AQI
6th September 2025
66AQI
66AQI
7th September 2025
66AQI
66AQI
8th September 2025
66AQI
66AQI
9th September 2025
72AQI
72AQI
10th September 2025
69AQI
69AQI
11th September 2025
73AQI
73AQI
12th September 2025
75AQI
75AQI
13th September 2025
78AQI
78AQI
14th September 2025
70AQI
70AQI
15th September 2025
71AQI
71AQI
16th September 2025
58AQI
58AQI
17th September 2025
52AQI
52AQI
18th September 2025
56AQI
56AQI
19th September 2025
59AQI
59AQI
20th September 2025
65AQI
65AQI
21st September 2025
78AQI
78AQI
22nd September 2025
63AQI
63AQI
23rd September 2025
74AQI
74AQI
24th September 2025
77AQI
77AQI
25th September 2025
92AQI
92AQI
26th September 2025
112AQI
112AQI
27th September 2025
82AQI
82AQI
28th September 2025
105AQI
105AQI
29th September 2025
98AQI
98AQI
30th September 2025
90AQI
90AQI
1st October 2025
118AQI
118AQI
2nd October 2025
86AQI
86AQI
3rd October 2025
114AQI
114AQI
4th October 2025
137AQI
137AQI
5th October 2025
126AQI
126AQI
6th October 2025
70AQI
70AQI
7th October 2025
105AQI
105AQI
8th October 2025
97AQI
97AQI
9th October 2025
53AQI
53AQI
10th October 2025
52AQI
52AQI
11th October 2025
57AQI
57AQI
12th October 2025
84AQI
84AQI
13th October 2025
92AQI
92AQI
14th October 2025
97AQI
97AQI
15th October 2025
140AQI
140AQI
16th October 2025
151AQI
151AQI
17th October 2025
127AQI
127AQI
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
106AQI
94AQI
103AQI
89AQI
89AQI
72AQI
66AQI
61AQI
74AQI
100AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202585AQI
1
14
11
5
1
17
9
1
17
9
4
1
24
6
26
5
29
1
1
30
31
28
2
9
7
1
3
225
50
11
1
Highest AQI recorded in
January106AQI
Lowest AQI recorded in
August61AQI
202483AQI
16
1
1
1
11
1
30
3
28
8
23
4
14
11
2
6
13
10
1
13
9
7
1
19
11
21
161
45
17
Highest AQI recorded in
October121AQI
Lowest AQI recorded in
March44AQI
202361AQI
3
31
34
Highest AQI recorded in
December61AQI
Lowest AQI recorded in
November60AQI
2022107AQI
5
13
13
10
11
8
13
10
13
12
5
16
13
2
19
10
1
1
22
1
2
1
95
73
31
Highest AQI recorded in
January138AQI
Lowest AQI recorded in
July67AQI
202181AQI
6
13
10
2
7
11
8
2
3
8
15
3
2
1
10
13
2
3
19
7
1
1
6
17
7
20
11
31
30
31
8
6
12
4
12
15
4
130
91
86
42
10
2
Highest AQI recorded in
March180AQI
Lowest AQI recorded in
October1AQI
2020103AQI
1
5
4
3
13
7
1
10
6
2
18
11
1
12
17
2
24
6
1
9
13
5
2
14
8
9
11
13
5
1
1
5
18
7
11
125
95
33
1
Highest AQI recorded in
December124AQI
Lowest AQI recorded in
September78AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
107AQILeast Polluted Year Recorded
2023(Avg.)
61AQIYi County Environmental Protection Bureau's annual 2025 AQI (85) shows an average percentage change of 1.4% (worsened AQI) compared to previous years: 2020 (103), 2021 (81), 2022 (107), 2023 (61), 2024 (83).
