Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

District 21, Tehran, Tehran Province, Iran 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+

September Air Quality Analysis

District 21, Tehran, Tehran Province, Iran

2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Sep 2026
86AQI
Lowest AQI recorded on
27th Sep 2025
35AQI

Same Day Analysis (25th September):
On this day, AQI across the 2 years varied significantly: 2026 ranks 2nd highest AQI at 47 of Good air quality, showing improvement over 2025 on the same day.

Day & Night AQI Trend: 25th Sep - 26th Sep 2026

District 21, Tehran, Tehran Province, Iran

AQI
Day
Night
.

5 AM25th Sep 2026

6 PM

4 AM26th Sep 2026

Day time
Avg. Highest Time
5AM25th Sep

53AQI

Avg. Lowest Time
9AM25th Sep

31AQI

Night time
Avg. Highest Time
3AM26th Sep

55AQI

Avg. Lowest Time
7PM25th Sep

38AQI

In the last 24 hours,

District 21's AQI reached its highest point of 55 at 3 AM during the Night, while the lowest point, 31, was recorded at 9 AM during the Day between 25th Sep and 26th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

District 21, Tehran, Tehran Province, Iran

AugSep
28th - 29th29th - 30th30th - 31st31st - 01st01st - 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
Day
Night
28th Aug 20261085 AMAQI
28th Aug 20261286 AMAQI
28th Aug 2026907 AMAQI
28th Aug 2026968 AMAQI
28th Aug 20261089 AMAQI
28th Aug 20268610 AMAQI
28th Aug 20268211 AMAQI
28th Aug 20268012 PMAQI
28th Aug 2026661 PMAQI
28th Aug 2026522 PMAQI
28th Aug 2026403 PMAQI
28th Aug 2026564 PMAQI
28th Aug 2026565 PMAQI
28th Aug 2026586 PMAQI
28th Aug 2026657 PMAQI
28th Aug 2026678 PMAQI
28th Aug 2026529 PMAQI
28th Aug 20265610 PMAQI
28th Aug 20264011 PMAQI
29th Aug 20266212 AMAQI
29th Aug 2026701 AMAQI
29th Aug 2026682 AMAQI
29th Aug 2026653 AMAQI
29th Aug 2026784 AMAQI

30°C28/33°C

29th Aug 2026735 AMAQI
29th Aug 2026956 AMAQI
29th Aug 2026707 AMAQI
29th Aug 2026818 AMAQI
29th Aug 2026729 AMAQI
29th Aug 20266210 AMAQI
29th Aug 20267011 AMAQI
29th Aug 20266712 PMAQI
29th Aug 2026741 PMAQI
29th Aug 2026682 PMAQI
29th Aug 2026583 PMAQI
29th Aug 2026674 PMAQI
29th Aug 2026645 PMAQI
29th Aug 2026666 PMAQI
29th Aug 2026597 PMAQI
29th Aug 2026578 PMAQI
29th Aug 2026609 PMAQI
29th Aug 20266210 PMAQI
29th Aug 20266611 PMAQI
30th Aug 20266912 AMAQI
30th Aug 2026711 AMAQI
30th Aug 2026832 AMAQI
30th Aug 2026833 AMAQI
30th Aug 2026814 AMAQI

30°C27/32°C

30th Aug 2026895 AMAQI
30th Aug 2026946 AMAQI
30th Aug 2026897 AMAQI
30th Aug 20261028 AMAQI
30th Aug 2026859 AMAQI
30th Aug 20266810 AMAQI
30th Aug 20266411 AMAQI
30th Aug 20268012 PMAQI
30th Aug 2026821 PMAQI
30th Aug 2026762 PMAQI
30th Aug 2026763 PMAQI
30th Aug 2026704 PMAQI
30th Aug 2026625 PMAQI
30th Aug 2026686 PMAQI
30th Aug 2026717 PMAQI
30th Aug 2026718 PMAQI
30th Aug 2026699 PMAQI
30th Aug 20266410 PMAQI
30th Aug 20266611 PMAQI
31st Aug 20266412 AMAQI
31st Aug 2026611 AMAQI
31st Aug 2026522 AMAQI
31st Aug 2026573 AMAQI
31st Aug 2026534 AMAQI

30°C28/33°C

31st Aug 2026515 AMAQI
31st Aug 2026566 AMAQI
31st Aug 2026607 AMAQI
31st Aug 2026698 AMAQI
31st Aug 2026579 AMAQI
31st Aug 20266010 AMAQI
31st Aug 20266211 AMAQI
31st Aug 20265812 PMAQI
31st Aug 2026751 PMAQI
31st Aug 2026862 PMAQI
31st Aug 2026753 PMAQI
31st Aug 2026724 PMAQI
31st Aug 2026855 PMAQI
31st Aug 2026816 PMAQI
31st Aug 2026747 PMAQI
31st Aug 2026698 PMAQI
31st Aug 2026679 PMAQI
31st Aug 20266810 PMAQI
31st Aug 20266411 PMAQI
1st Sep 20266312 AMAQI
1st Sep 2026641 AMAQI
1st Sep 2026682 AMAQI
1st Sep 2026623 AMAQI
1st Sep 2026604 AMAQI

31°C28/34°C

1st Sep 2026605 AMAQI
1st Sep 2026526 AMAQI
1st Sep 2026567 AMAQI
1st Sep 2026548 AMAQI
1st Sep 2026599 AMAQI
1st Sep 20265710 AMAQI
1st Sep 20266211 AMAQI
1st Sep 20265512 PMAQI
1st Sep 2026541 PMAQI
1st Sep 2026562 PMAQI
1st Sep 2026543 PMAQI
1st Sep 2026564 PMAQI
1st Sep 2026555 PMAQI
1st Sep 2026606 PMAQI
1st Sep 2026607 PMAQI
1st Sep 2026608 PMAQI
1st Sep 2026569 PMAQI
1st Sep 20265310 PMAQI
1st Sep 20265311 PMAQI
2nd Sep 20265312 AMAQI
2nd Sep 2026561 AMAQI
2nd Sep 2026552 AMAQI
2nd Sep 2026513 AMAQI
2nd Sep 2026584 AMAQI

28°C25/31°C

2nd Sep 2026535 AMAQI
2nd Sep 2026556 AMAQI
2nd Sep 2026627 AMAQI
2nd Sep 2026628 AMAQI
2nd Sep 2026669 AMAQI
2nd Sep 20267210 AMAQI
2nd Sep 20266611 AMAQI
2nd Sep 20266712 PMAQI
2nd Sep 2026591 PMAQI
2nd Sep 2026602 PMAQI
2nd Sep 2026653 PMAQI
2nd Sep 2026654 PMAQI
2nd Sep 2026655 PMAQI
2nd Sep 2026646 PMAQI
2nd Sep 2026647 PMAQI
2nd Sep 2026698 PMAQI
2nd Sep 2026689 PMAQI
2nd Sep 20268210 PMAQI
2nd Sep 20267811 PMAQI
3rd Sep 20267312 AMAQI
3rd Sep 2026761 AMAQI
3rd Sep 2026762 AMAQI
3rd Sep 2026743 AMAQI
3rd Sep 2026694 AMAQI

27°C24/29°C

3rd Sep 2026745 AMAQI
3rd Sep 2026676 AMAQI
3rd Sep 2026717 AMAQI
3rd Sep 2026738 AMAQI
3rd Sep 2026669 AMAQI
3rd Sep 20267410 AMAQI
3rd Sep 20267011 AMAQI
3rd Sep 20265712 PMAQI
3rd Sep 2026581 PMAQI
3rd Sep 2026532 PMAQI
3rd Sep 2026573 PMAQI
3rd Sep 2026624 PMAQI
3rd Sep 2026645 PMAQI
3rd Sep 2026606 PMAQI
3rd Sep 2026547 PMAQI
3rd Sep 2026588 PMAQI
3rd Sep 2026679 PMAQI
3rd Sep 20267110 PMAQI
3rd Sep 20266811 PMAQI
4th Sep 20266412 AMAQI
4th Sep 2026591 AMAQI
4th Sep 2026552 AMAQI
4th Sep 2026583 AMAQI
4th Sep 2026624 AMAQI

26°C24/28°C

4th Sep 2026625 AMAQI
4th Sep 2026626 AMAQI
4th Sep 2026637 AMAQI
4th Sep 2026648 AMAQI
4th Sep 2026669 AMAQI
4th Sep 20266810 AMAQI
4th Sep 20266411 AMAQI
4th Sep 20266412 PMAQI
4th Sep 2026621 PMAQI
4th Sep 2026622 PMAQI
4th Sep 2026623 PMAQI
4th Sep 2026674 PMAQI
4th Sep 2026705 PMAQI
4th Sep 2026676 PMAQI
4th Sep 2026697 PMAQI
4th Sep 2026678 PMAQI
4th Sep 2026629 PMAQI
4th Sep 20267210 PMAQI
4th Sep 20268811 PMAQI
5th Sep 20268612 AMAQI
5th Sep 2026901 AMAQI
5th Sep 2026982 AMAQI
5th Sep 2026953 AMAQI
5th Sep 2026894 AMAQI

25°C23/28°C

5th Sep 2026815 AMAQI
5th Sep 2026806 AMAQI
5th Sep 2026877 AMAQI
5th Sep 2026798 AMAQI
5th Sep 2026909 AMAQI
5th Sep 20269210 AMAQI
5th Sep 20268111 AMAQI
5th Sep 20269612 PMAQI
5th Sep 2026821 PMAQI
5th Sep 2026802 PMAQI
5th Sep 2026833 PMAQI
5th Sep 2026854 PMAQI
5th Sep 2026845 PMAQI
5th Sep 2026886 PMAQI
5th Sep 2026787 PMAQI
5th Sep 2026858 PMAQI
5th Sep 2026819 PMAQI
5th Sep 20268110 PMAQI
5th Sep 20268111 PMAQI
6th Sep 20267812 AMAQI
6th Sep 2026901 AMAQI
6th Sep 2026742 AMAQI
6th Sep 2026783 AMAQI
6th Sep 2026794 AMAQI

27°C23/30°C

6th Sep 2026725 AMAQI
6th Sep 2026736 AMAQI
6th Sep 2026747 AMAQI
6th Sep 2026718 AMAQI
6th Sep 2026769 AMAQI
6th Sep 20267910 AMAQI
6th Sep 20267611 AMAQI
6th Sep 20267612 PMAQI
6th Sep 2026641 PMAQI
6th Sep 2026682 PMAQI
6th Sep 2026763 PMAQI
6th Sep 2026744 PMAQI
6th Sep 2026725 PMAQI
6th Sep 2026836 PMAQI
6th Sep 2026807 PMAQI
6th Sep 2026748 PMAQI
6th Sep 2026799 PMAQI
6th Sep 20268510 PMAQI
6th Sep 20269711 PMAQI
7th Sep 202610812 AMAQI
7th Sep 2026911 AMAQI
7th Sep 2026722 AMAQI
7th Sep 2026793 AMAQI
7th Sep 2026784 AMAQI

28°C25/30°C

7th Sep 2026675 AMAQI
7th Sep 2026706 AMAQI
7th Sep 2026687 AMAQI
7th Sep 2026708 AMAQI
7th Sep 2026679 AMAQI
7th Sep 20266810 AMAQI
7th Sep 20267411 AMAQI
7th Sep 20268012 PMAQI
7th Sep 2026781 PMAQI
7th Sep 2026812 PMAQI
7th Sep 2026883 PMAQI
7th Sep 2026874 PMAQI
7th Sep 2026885 PMAQI
7th Sep 2026886 PMAQI
7th Sep 2026877 PMAQI
7th Sep 2026798 PMAQI
7th Sep 2026709 PMAQI
7th Sep 20266910 PMAQI
7th Sep 20266711 PMAQI
8th Sep 20266512 AMAQI
8th Sep 2026671 AMAQI
8th Sep 2026712 AMAQI
8th Sep 2026683 AMAQI
8th Sep 2026654 AMAQI

28°C25/31°C

8th Sep 2026695 AMAQI
8th Sep 2026686 AMAQI
8th Sep 2026737 AMAQI
8th Sep 2026628 AMAQI
8th Sep 2026679 AMAQI
8th Sep 20267610 AMAQI
8th Sep 20266711 AMAQI
8th Sep 20266612 PMAQI
8th Sep 2026681 PMAQI
8th Sep 2026692 PMAQI
8th Sep 2026663 PMAQI
8th Sep 2026724 PMAQI
8th Sep 2026725 PMAQI
8th Sep 2026716 PMAQI
8th Sep 2026677 PMAQI
8th Sep 2026748 PMAQI
8th Sep 2026949 PMAQI
8th Sep 20269710 PMAQI
8th Sep 20269011 PMAQI
9th Sep 20269512 AMAQI
9th Sep 2026901 AMAQI
9th Sep 2026852 AMAQI
9th Sep 2026763 AMAQI
9th Sep 2026654 AMAQI

25°C22/29°C

9th Sep 2026625 AMAQI
9th Sep 2026536 AMAQI
9th Sep 2026537 AMAQI
9th Sep 2026568 AMAQI
9th Sep 2026539 AMAQI
9th Sep 20265610 AMAQI
9th Sep 20265511 AMAQI
9th Sep 20264812 PMAQI
9th Sep 2026521 PMAQI
9th Sep 2026502 PMAQI
9th Sep 2026403 PMAQI
9th Sep 2026404 PMAQI
9th Sep 2026505 PMAQI
9th Sep 2026466 PMAQI
9th Sep 2026457 PMAQI
9th Sep 2026508 PMAQI
9th Sep 2026569 PMAQI
9th Sep 20267410 PMAQI
9th Sep 20268411 PMAQI
10th Sep 20267412 AMAQI
10th Sep 2026601 AMAQI
10th Sep 2026502 AMAQI
10th Sep 2026573 AMAQI
10th Sep 2026624 AMAQI

25°C22/27°C

10th Sep 2026575 AMAQI
10th Sep 2026566 AMAQI
10th Sep 2026567 AMAQI
10th Sep 2026558 AMAQI
10th Sep 2026539 AMAQI
10th Sep 20265810 AMAQI
10th Sep 20264811 AMAQI
10th Sep 20263312 PMAQI
10th Sep 2026331 PMAQI
10th Sep 2026382 PMAQI
10th Sep 2026423 PMAQI
10th Sep 2026554 PMAQI
10th Sep 2026425 PMAQI
10th Sep 2026426 PMAQI
10th Sep 2026337 PMAQI
10th Sep 2026318 PMAQI
10th Sep 2026339 PMAQI
10th Sep 20264810 PMAQI
10th Sep 20266811 PMAQI
11th Sep 20269612 AMAQI
11th Sep 2026991 AMAQI
11th Sep 2026872 AMAQI
11th Sep 2026603 AMAQI
11th Sep 2026484 AMAQI

26°C24/29°C

11th Sep 2026465 AMAQI
11th Sep 2026426 AMAQI
11th Sep 2026537 AMAQI
11th Sep 2026688 AMAQI
11th Sep 2026689 AMAQI
11th Sep 20267410 AMAQI
11th Sep 20267211 AMAQI
11th Sep 20266212 PMAQI
11th Sep 2026651 PMAQI
11th Sep 2026592 PMAQI
11th Sep 2026633 PMAQI
11th Sep 2026624 PMAQI
11th Sep 2026585 PMAQI
11th Sep 2026536 PMAQI
11th Sep 2026547 PMAQI
11th Sep 2026538 PMAQI
11th Sep 2026589 PMAQI
11th Sep 20267610 PMAQI
11th Sep 20269411 PMAQI
12th Sep 20269412 AMAQI
12th Sep 2026921 AMAQI
12th Sep 20261042 AMAQI
12th Sep 2026953 AMAQI
12th Sep 2026884 AMAQI

25°C22/28°C

12th Sep 2026785 AMAQI
12th Sep 2026766 AMAQI
12th Sep 2026707 AMAQI
12th Sep 2026628 AMAQI
12th Sep 2026669 AMAQI
12th Sep 20265710 AMAQI
12th Sep 20265311 AMAQI
12th Sep 20265512 PMAQI
12th Sep 2026511 PMAQI
12th Sep 2026522 PMAQI
12th Sep 2026513 PMAQI
12th Sep 2026424 PMAQI
12th Sep 2026445 PMAQI
12th Sep 2026526 PMAQI
12th Sep 2026547 PMAQI
12th Sep 2026588 PMAQI
12th Sep 2026629 PMAQI
12th Sep 20267110 PMAQI
12th Sep 20268111 PMAQI
13th Sep 2026781 AMAQI
13th Sep 2026782 AMAQI
13th Sep 2026673 AMAQI
13th Sep 2026624 AMAQI

24°C20/26°C

13th Sep 2026555 AMAQI
13th Sep 2026476 AMAQI
13th Sep 2026367 AMAQI
13th Sep 2026528 AMAQI
13th Sep 2026559 AMAQI
13th Sep 20265710 AMAQI
13th Sep 20265811 AMAQI
13th Sep 20261912 PMAQI
13th Sep 2026191 PMAQI
13th Sep 2026172 PMAQI
13th Sep 2026553 PMAQI
13th Sep 2026604 PMAQI
13th Sep 2026745 PMAQI
13th Sep 2026646 PMAQI
13th Sep 2026627 PMAQI
13th Sep 2026658 PMAQI
13th Sep 2026679 PMAQI
13th Sep 20267210 PMAQI
13th Sep 20267211 PMAQI
14th Sep 20266212 AMAQI
14th Sep 2026641 AMAQI
14th Sep 2026542 AMAQI
14th Sep 2026573 AMAQI
14th Sep 2026684 AMAQI

26°C23/28°C

14th Sep 2026535 AMAQI
14th Sep 2026706 AMAQI
14th Sep 2026687 AMAQI
14th Sep 2026678 AMAQI
14th Sep 2026659 AMAQI
14th Sep 20266610 AMAQI
14th Sep 20266611 AMAQI
14th Sep 20266612 PMAQI
14th Sep 2026681 PMAQI
14th Sep 2026722 PMAQI
14th Sep 2026563 PMAQI
14th Sep 2026764 PMAQI
14th Sep 2026825 PMAQI
14th Sep 2026766 PMAQI
14th Sep 2026837 PMAQI
14th Sep 2026818 PMAQI
14th Sep 2026789 PMAQI
14th Sep 20267810 PMAQI
14th Sep 20268711 PMAQI
15th Sep 20269212 AMAQI
15th Sep 2026801 AMAQI
15th Sep 2026802 AMAQI
15th Sep 2026853 AMAQI
15th Sep 2026744 AMAQI

26°C24/28°C

15th Sep 2026895 AMAQI
15th Sep 2026876 AMAQI
15th Sep 2026907 AMAQI
15th Sep 2026908 AMAQI
15th Sep 2026719 AMAQI
15th Sep 20266910 AMAQI
15th Sep 20267411 AMAQI
15th Sep 20268112 PMAQI
15th Sep 2026741 PMAQI
15th Sep 2026762 PMAQI
15th Sep 2026853 PMAQI
15th Sep 2026784 PMAQI
15th Sep 2026745 PMAQI
15th Sep 2026736 PMAQI
15th Sep 2026857 PMAQI
15th Sep 2026928 PMAQI
15th Sep 2026909 PMAQI
15th Sep 20268810 PMAQI
15th Sep 20268611 PMAQI
16th Sep 20268512 AMAQI
16th Sep 2026841 AMAQI
16th Sep 2026782 AMAQI
16th Sep 2026743 AMAQI
16th Sep 2026734 AMAQI

26°C23/29°C

16th Sep 2026755 AMAQI
16th Sep 2026766 AMAQI
16th Sep 2026707 AMAQI
16th Sep 2026678 AMAQI
16th Sep 2026679 AMAQI
16th Sep 20267010 AMAQI
16th Sep 20266411 AMAQI
16th Sep 20265912 PMAQI
16th Sep 2026571 PMAQI
16th Sep 2026532 PMAQI
16th Sep 2026593 PMAQI
16th Sep 2026714 PMAQI
16th Sep 2026675 PMAQI
16th Sep 2026666 PMAQI
16th Sep 2026667 PMAQI
16th Sep 2026668 PMAQI
16th Sep 2026669 PMAQI
16th Sep 20266710 PMAQI
16th Sep 20266911 PMAQI
17th Sep 20266712 AMAQI
17th Sep 2026611 AMAQI
17th Sep 2026582 AMAQI
17th Sep 2026593 AMAQI
17th Sep 2026584 AMAQI

27°C24/29°C

17th Sep 2026585 AMAQI
17th Sep 2026586 AMAQI
17th Sep 2026577 AMAQI
17th Sep 2026578 AMAQI
17th Sep 2026609 AMAQI
17th Sep 20265610 AMAQI
17th Sep 20265411 AMAQI
17th Sep 20265412 PMAQI
17th Sep 2026561 PMAQI
17th Sep 2026522 PMAQI
17th Sep 2026523 PMAQI
17th Sep 2026464 PMAQI
17th Sep 2026485 PMAQI
17th Sep 2026506 PMAQI
17th Sep 2026507 PMAQI
17th Sep 2026538 PMAQI
17th Sep 2026529 PMAQI
17th Sep 20264610 PMAQI
17th Sep 20265011 PMAQI
18th Sep 20264312 AMAQI
18th Sep 2026401 AMAQI
18th Sep 2026512 AMAQI
18th Sep 2026483 AMAQI
18th Sep 2026604 AMAQI

27°C24/29°C

18th Sep 2026595 AMAQI
18th Sep 2026646 AMAQI
18th Sep 2026667 AMAQI
18th Sep 2026598 AMAQI
18th Sep 2026669 AMAQI
18th Sep 20268610 AMAQI
18th Sep 20267811 AMAQI
18th Sep 20267312 PMAQI
18th Sep 2026661 PMAQI
18th Sep 2026642 PMAQI
18th Sep 2026623 PMAQI
18th Sep 2026654 PMAQI
18th Sep 2026655 PMAQI
18th Sep 2026656 PMAQI
18th Sep 2026577 PMAQI
18th Sep 2026568 PMAQI
18th Sep 2026579 PMAQI
18th Sep 20265710 PMAQI
18th Sep 20266211 PMAQI
19th Sep 20266212 AMAQI
19th Sep 2026631 AMAQI
19th Sep 2026642 AMAQI
19th Sep 2026683 AMAQI
19th Sep 2026724 AMAQI

27°C25/29°C

19th Sep 2026725 AMAQI
19th Sep 2026766 AMAQI
19th Sep 2026717 AMAQI
19th Sep 2026748 AMAQI
19th Sep 2026699 AMAQI
19th Sep 20266010 AMAQI
19th Sep 20264411 AMAQI
19th Sep 20264412 PMAQI
19th Sep 2026441 PMAQI
19th Sep 2026422 PMAQI
19th Sep 2026443 PMAQI
19th Sep 2026424 PMAQI
19th Sep 2026565 PMAQI
19th Sep 2026706 PMAQI
19th Sep 2026757 PMAQI
19th Sep 2026798 PMAQI
19th Sep 2026879 PMAQI
19th Sep 20268310 PMAQI
19th Sep 20268011 PMAQI
20th Sep 20267612 AMAQI
20th Sep 2026701 AMAQI
20th Sep 2026762 AMAQI
20th Sep 2026743 AMAQI
20th Sep 2026744 AMAQI

28°C25/30°C

20th Sep 2026755 AMAQI
20th Sep 2026806 AMAQI
20th Sep 2026807 AMAQI
20th Sep 2026788 AMAQI
20th Sep 2026809 AMAQI
20th Sep 20268610 AMAQI
20th Sep 20268211 AMAQI
20th Sep 20267712 PMAQI
20th Sep 2026761 PMAQI
20th Sep 2026722 PMAQI
20th Sep 2026783 PMAQI
20th Sep 2026734 PMAQI
20th Sep 2026765 PMAQI
20th Sep 2026706 PMAQI
20th Sep 2026667 PMAQI
20th Sep 2026588 PMAQI
20th Sep 2026569 PMAQI
20th Sep 20265610 PMAQI
20th Sep 20265211 PMAQI
21st Sep 20265112 AMAQI
21st Sep 2026541 AMAQI
21st Sep 2026562 AMAQI
21st Sep 2026553 AMAQI
21st Sep 2026584 AMAQI

29°C26/31°C

21st Sep 2026585 AMAQI
21st Sep 2026546 AMAQI
21st Sep 2026537 AMAQI
21st Sep 2026538 AMAQI
21st Sep 2026639 AMAQI
21st Sep 20266210 AMAQI
21st Sep 20266211 AMAQI
21st Sep 20265612 PMAQI
21st Sep 2026561 PMAQI
21st Sep 2026572 PMAQI
21st Sep 2026563 PMAQI
21st Sep 2026594 PMAQI
21st Sep 2026645 PMAQI
21st Sep 2026606 PMAQI
21st Sep 2026647 PMAQI
21st Sep 2026568 PMAQI
21st Sep 2026589 PMAQI
21st Sep 20266510 PMAQI
21st Sep 20266511 PMAQI
22nd Sep 20266012 AMAQI
22nd Sep 2026531 AMAQI
22nd Sep 2026572 AMAQI
22nd Sep 2026633 AMAQI
22nd Sep 2026714 AMAQI

28°C25/30°C

22nd Sep 2026695 AMAQI
22nd Sep 2026646 AMAQI
22nd Sep 2026667 AMAQI
22nd Sep 2026678 AMAQI
22nd Sep 2026629 AMAQI
22nd Sep 20267810 AMAQI
22nd Sep 20268111 AMAQI
22nd Sep 20266912 PMAQI
22nd Sep 2026661 PMAQI
22nd Sep 2026662 PMAQI
22nd Sep 2026643 PMAQI
22nd Sep 2026664 PMAQI
22nd Sep 2026735 PMAQI
22nd Sep 2026716 PMAQI
22nd Sep 2026647 PMAQI
22nd Sep 2026608 PMAQI
22nd Sep 2026649 PMAQI
22nd Sep 20266610 PMAQI
22nd Sep 20267011 PMAQI
23rd Sep 20266412 AMAQI
23rd Sep 2026701 AMAQI
23rd Sep 2026732 AMAQI
23rd Sep 2026703 AMAQI
23rd Sep 2026714 AMAQI

28°C25/31°C

23rd Sep 2026825 AMAQI
23rd Sep 2026846 AMAQI
23rd Sep 2026847 AMAQI
23rd Sep 2026728 AMAQI
23rd Sep 2026629 AMAQI
23rd Sep 20266210 AMAQI
23rd Sep 20266611 AMAQI
23rd Sep 20266212 PMAQI
23rd Sep 2026561 PMAQI
23rd Sep 2026542 PMAQI
23rd Sep 2026523 PMAQI
23rd Sep 2026524 PMAQI
23rd Sep 2026485 PMAQI
23rd Sep 2026466 PMAQI
23rd Sep 2026487 PMAQI
23rd Sep 2026548 PMAQI
23rd Sep 2026589 PMAQI
23rd Sep 20267010 PMAQI
23rd Sep 20267011 PMAQI
24th Sep 20266412 AMAQI
24th Sep 2026711 AMAQI
24th Sep 2026762 AMAQI
24th Sep 2026743 AMAQI
24th Sep 2026764 AMAQI

28°C25/31°C

24th Sep 2026705 AMAQI
24th Sep 2026716 AMAQI
24th Sep 2026767 AMAQI
24th Sep 2026818 AMAQI
24th Sep 2026769 AMAQI
24th Sep 20267610 AMAQI
24th Sep 20266711 AMAQI
24th Sep 20266612 PMAQI
24th Sep 2026691 PMAQI
24th Sep 2026672 PMAQI
24th Sep 2026663 PMAQI
24th Sep 2026574 PMAQI
24th Sep 2026685 PMAQI
24th Sep 2026766 PMAQI
24th Sep 2026987 PMAQI
24th Sep 20261048 PMAQI
24th Sep 20261049 PMAQI
24th Sep 20268710 PMAQI
24th Sep 20268311 PMAQI
25th Sep 20267612 AMAQI
25th Sep 2026641 AMAQI
25th Sep 2026622 AMAQI
25th Sep 2026573 AMAQI
25th Sep 2026544 AMAQI

29°C26/32°C

25th Sep 2026535 AMAQI
25th Sep 2026496 AMAQI
25th Sep 2026427 AMAQI
25th Sep 2026388 AMAQI
25th Sep 2026319 AMAQI
25th Sep 20263610 AMAQI
25th Sep 20263811 AMAQI
25th Sep 20263612 PMAQI
25th Sep 2026401 PMAQI
25th Sep 2026382 PMAQI
25th Sep 2026363 PMAQI
25th Sep 2026484 PMAQI
25th Sep 2026525 PMAQI
25th Sep 2026466 PMAQI
25th Sep 2026387 PMAQI
25th Sep 2026448 PMAQI
25th Sep 2026499 PMAQI
25th Sep 20265010 PMAQI
25th Sep 20265211 PMAQI
26th Sep 20265012 AMAQI
26th Sep 2026481 AMAQI
26th Sep 2026452 AMAQI
26th Sep 2026553 AMAQI
26th Sep 2026554 AMAQI

28°C26/30°C

26th Sep 2026545 AMAQI
5 AM
26th Sep 2026466 AMAQI
26th Sep 2026507 AMAQI
26th Sep 2026488 AMAQI
26th Sep 2026469 AMAQI
26th Sep 20264810 AMAQI
26th Sep 20265211 AMAQI
11 AM
26th Sep 20265312 PMAQI
26th Sep 2026561 PMAQI
26th Sep 2026622 PMAQI
26th Sep 2026603 PMAQI
26th Sep 2026674 PMAQI
26th Sep 2026665 PMAQI
26th Sep 2026546 PMAQI
6 PM
26th Sep 2026647 PMAQI
26th Sep 2026708 PMAQI
26th Sep 2026719 PMAQI
26th Sep 20266810 PMAQI
26th Sep 20268611 PMAQI
11 PM
4 AM

25°C23/27°C

Day time
Avg. Highest Time
5 AM - 11 AM

67AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
12 PM - 3 PM

61AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 11 AM (Avg. 67), while the lowest AQI was between 12 PM to 3 PM (Avg. 61).
Night time
Avg. Highest Time
12 AM - 4 AM

70AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
7 PM - 9 PM

65AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 70), while the lowest AQI was between 7 PM to 9 PM (Avg. 65).

2026 Days Vs Air Quality

District 21, Tehran, Tehran Province, Iran

2026

11%

29

81%

214

8%

20

0.7%

2

Total number of days with different AQI categories in last 269 days in 2026 (96 days remaining)

Good
29 Days
Moderate
214 Days
Poor
20 Days
Unhealthy
2 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 11%

Health Risk Level:

Extreme

In 2026, 11% of 269 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

District 21, Tehran, Tehran Province, Iran

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
82AQI (US)
2nd January 2026
118AQI (US)
3rd January 2026
121AQI (US)
4th January 2026
119AQI (US)
5th January 2026
121AQI (US)
6th January 2026
96AQI (US)
7th January 2026
108AQI (US)
8th January 2026
109AQI (US)
9th January 2026
109AQI (US)
10th January 2026
120AQI (US)
11th January 2026
57AQI (US)
12th January 2026
84AQI (US)
13th January 2026
86AQI (US)
14th January 2026
76AQI (US)
15th January 2026
52AQI (US)
16th January 2026
47AQI (US)
17th January 2026
58AQI (US)
18th January 2026
66AQI (US)
19th January 2026
98AQI (US)
20th January 2026
90AQI (US)
21st January 2026
63AQI (US)
22nd January 2026
72AQI (US)
23rd January 2026
66AQI (US)
24th January 2026
46AQI (US)
25th January 2026
61AQI (US)
26th January 2026
77AQI (US)
27th January 2026
78AQI (US)
28th January 2026
94AQI (US)
29th January 2026
89AQI (US)
30th January 2026
82AQI (US)
31st January 2026
57AQI (US)
1st February 2026
80AQI (US)
2nd February 2026
106AQI (US)
3rd February 2026
104AQI (US)
4th February 2026
89AQI (US)
5th February 2026
68AQI (US)
6th February 2026
57AQI (US)
7th February 2026
65AQI (US)
8th February 2026
157AQI (US)
9th February 2026
133AQI (US)
10th February 2026
151AQI (US)
11th February 2026
138AQI (US)
12th February 2026
140AQI (US)
13th February 2026
137AQI (US)
14th February 2026
104AQI (US)
15th February 2026
126AQI (US)
16th February 2026
81AQI (US)
17th February 2026
78AQI (US)
18th February 2026
108AQI (US)
19th February 2026
81AQI (US)
20th February 2026
78AQI (US)
21st February 2026
91AQI (US)
22nd February 2026
102AQI (US)
23rd February 2026
58AQI (US)
24th February 2026
75AQI (US)
25th February 2026
59AQI (US)
26th February 2026
44AQI (US)
27th February 2026
50AQI (US)
28th February 2026
55AQI (US)
1st March 2026
52AQI (US)
2nd March 2026
40AQI (US)
3rd March 2026
56AQI (US)
4th March 2026
44AQI (US)
5th March 2026
44AQI (US)
6th March 2026
67AQI (US)
7th March 2026
107AQI (US)
8th March 2026
81AQI (US)
9th March 2026
48AQI (US)
10th March 2026
53AQI (US)
11th March 2026
58AQI (US)
12th March 2026
66AQI (US)
13th March 2026
52AQI (US)
14th March 2026
75AQI (US)
15th March 2026
66AQI (US)
16th March 2026
67AQI (US)
17th March 2026
61AQI (US)
18th March 2026
47AQI (US)
19th March 2026
67AQI (US)
20th March 2026
62AQI (US)
21st March 2026
69AQI (US)
22nd March 2026
71AQI (US)
23rd March 2026
53AQI (US)
24th March 2026
50AQI (US)
25th March 2026
57AQI (US)
26th March 2026
55AQI (US)
27th March 2026
43AQI (US)
28th March 2026
28AQI (US)
29th March 2026
53AQI (US)
30th March 2026
58AQI (US)
31st March 2026
50AQI (US)
1st April 2026
45AQI (US)
2nd April 2026
50AQI (US)
3rd April 2026
58AQI (US)
4th April 2026
68AQI (US)
5th April 2026
89AQI (US)
6th April 2026
102AQI (US)
7th April 2026
71AQI (US)
8th April 2026
65AQI (US)
9th April 2026
58AQI (US)
10th April 2026
50AQI (US)
11th April 2026
46AQI (US)
12th April 2026
64AQI (US)
13th April 2026
66AQI (US)
14th April 2026
53AQI (US)
15th April 2026
32AQI (US)
16th April 2026
52AQI (US)
17th April 2026
18th April 2026
78AQI (US)
19th April 2026
70AQI (US)
20th April 2026
64AQI (US)
21st April 2026
46AQI (US)
22nd April 2026
23rd April 2026
51AQI (US)
24th April 2026
53AQI (US)
25th April 2026
65AQI (US)
26th April 2026
55AQI (US)
27th April 2026
59AQI (US)
28th April 2026
73AQI (US)
29th April 2026
90AQI (US)
30th April 2026
72AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
52AQI (US)
3rd May 2026
63AQI (US)
4th May 2026
74AQI (US)
5th May 2026
78AQI (US)
6th May 2026
68AQI (US)
7th May 2026
50AQI (US)
8th May 2026
50AQI (US)
9th May 2026
10th May 2026
62AQI (US)
11th May 2026
66AQI (US)
12th May 2026
81AQI (US)
13th May 2026
76AQI (US)
14th May 2026
92AQI (US)
15th May 2026
73AQI (US)
16th May 2026
40AQI (US)
17th May 2026
44AQI (US)
18th May 2026
48AQI (US)
19th May 2026
57AQI (US)
20th May 2026
57AQI (US)
21st May 2026
55AQI (US)
22nd May 2026
52AQI (US)
23rd May 2026
52AQI (US)
24th May 2026
58AQI (US)
25th May 2026
60AQI (US)
26th May 2026
56AQI (US)
27th May 2026
63AQI (US)
28th May 2026
78AQI (US)
29th May 2026
71AQI (US)
30th May 2026
64AQI (US)
31st May 2026
67AQI (US)
1st June 2026
55AQI (US)
2nd June 2026
57AQI (US)
3rd June 2026
58AQI (US)
4th June 2026
62AQI (US)
5th June 2026
60AQI (US)
6th June 2026
60AQI (US)
7th June 2026
57AQI (US)
8th June 2026
65AQI (US)
9th June 2026
73AQI (US)
10th June 2026
56AQI (US)
11th June 2026
66AQI (US)
12th June 2026
58AQI (US)
13th June 2026
62AQI (US)
14th June 2026
64AQI (US)
15th June 2026
56AQI (US)
16th June 2026
55AQI (US)
17th June 2026
61AQI (US)
18th June 2026
56AQI (US)
19th June 2026
71AQI (US)
20th June 2026
72AQI (US)
21st June 2026
55AQI (US)
22nd June 2026
59AQI (US)
23rd June 2026
76AQI (US)
24th June 2026
74AQI (US)
25th June 2026
66AQI (US)
26th June 2026
54AQI (US)
27th June 2026
66AQI (US)
28th June 2026
72AQI (US)
29th June 2026
59AQI (US)
30th June 2026
57AQI (US)
1st July 2026
58AQI (US)
2nd July 2026
59AQI (US)
3rd July 2026
66AQI (US)
4th July 2026
66AQI (US)
5th July 2026
61AQI (US)
6th July 2026
64AQI (US)
7th July 2026
45AQI (US)
8th July 2026
46AQI (US)
9th July 2026
57AQI (US)
10th July 2026
57AQI (US)
11th July 2026
65AQI (US)
12th July 2026
63AQI (US)
13th July 2026
74AQI (US)
14th July 2026
63AQI (US)
15th July 2026
55AQI (US)
16th July 2026
55AQI (US)
17th July 2026
64AQI (US)
18th July 2026
63AQI (US)
19th July 2026
65AQI (US)
20th July 2026
67AQI (US)
21st July 2026
62AQI (US)
22nd July 2026
64AQI (US)
23rd July 2026
56AQI (US)
24th July 2026
53AQI (US)
25th July 2026
70AQI (US)
26th July 2026
75AQI (US)
27th July 2026
75AQI (US)
28th July 2026
71AQI (US)
29th July 2026
58AQI (US)
30th July 2026
61AQI (US)
31st July 2026
78AQI (US)
1st August 2026
90AQI (US)
2nd August 2026
72AQI (US)
3rd August 2026
82AQI (US)
4th August 2026
94AQI (US)
5th August 2026
91AQI (US)
6th August 2026
73AQI (US)
7th August 2026
63AQI (US)
8th August 2026
65AQI (US)
9th August 2026
72AQI (US)
10th August 2026
88AQI (US)
11th August 2026
76AQI (US)
12th August 2026
90AQI (US)
13th August 2026
86AQI (US)
14th August 2026
78AQI (US)
15th August 2026
77AQI (US)
16th August 2026
65AQI (US)
17th August 2026
56AQI (US)
18th August 2026
68AQI (US)
19th August 2026
66AQI (US)
20th August 2026
70AQI (US)
21st August 2026
74AQI (US)
22nd August 2026
69AQI (US)
23rd August 2026
68AQI (US)
24th August 2026
71AQI (US)
25th August 2026
70AQI (US)
26th August 2026
76AQI (US)
27th August 2026
80AQI (US)
28th August 2026
78AQI (US)
29th August 2026
68AQI (US)
30th August 2026
76AQI (US)
31st August 2026
66AQI (US)
1st September 2026
58AQI (US)
2nd September 2026
63AQI (US)
3rd September 2026
66AQI (US)
4th September 2026
65AQI (US)
5th September 2026
86AQI (US)
6th September 2026
77AQI (US)
7th September 2026
78AQI (US)
8th September 2026
72AQI (US)
9th September 2026
60AQI (US)
10th September 2026
49AQI (US)
11th September 2026
65AQI (US)
12th September 2026
67AQI (US)
13th September 2026
56AQI (US)
14th September 2026
69AQI (US)
15th September 2026
82AQI (US)
16th September 2026
69AQI (US)
17th September 2026
55AQI (US)
18th September 2026
61AQI (US)
19th September 2026
64AQI (US)
20th September 2026
73AQI (US)
21st September 2026
58AQI (US)
22nd September 2026
66AQI (US)
23rd September 2026
64AQI (US)
24th September 2026
76AQI (US)
25th September 2026
47AQI (US)
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

84AQI (US)

93AQI (US)

58AQI (US)

62AQI (US)

62AQI (US)

62AQI (US)

62AQI (US)

75AQI (US)

66AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202669AQI (US)

2
21
8
2
14
10
2
9
21
1
6
21
1
6
24
30
2
29
31
2
23
29
214
20
2

Highest AQI (US) recorded in

February

93AQI (US)

Lowest AQI (US) recorded in

March

58AQI (US)

202584AQI (US)

3
23
7
17
14
29
2
3
27
1
30
1
22
7
17
14
5
168
44

Highest AQI (US) recorded in

December

102AQI (US)

Lowest AQI (US) recorded in

October

67AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2025(Avg.)
84AQI (US)
Least Polluted Year Recorded
2026(Avg.)
69AQI (US)

District 21's annual 2026 AQI (US) (69) shows an average percentage change of -17.8% (improved AQI (US)) compared to previous years: 2025 (84).