District 12, 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!
September Air Quality Analysis
District 12, Tehran, Tehran Province, Iran
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 78 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
District 12, Tehran, Tehran Province, Iran
6 AM21st Sep 2025
7 PM
5 AM22nd Sep 2025
86AQI
62AQI
80AQI
62AQI
In the last 24 hours,
District 12's AQI reached its highest point of 86 at 7 AM during the Day, while the lowest point, 62, was recorded at 4 AM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
District 12, Tehran, Tehran Province, Iran
31°C27/34°C
31°C27/35°C
31°C27/34°C
30°C26/32°C
31°C27/33°C
30°C25/33°C
29°C25/32°C
29°C26/32°C
29°C25/32°C
29°C25/33°C
28°C24/31°C
28°C23/31°C
30°C25/33°C
31°C27/33°C
30°C27/33°C
30°C27/33°C
30°C27/34°C
30°C27/34°C
32°C28/34°C
30°C28/32°C
27°C24/30°C
25°C22/28°C
25°C22/28°C
24°C22/27°C
24°C21/27°C
25°C22/29°C
25°C21/28°C
27°C22/31°C
25°C23/27°C
22°C20/26°C
--°C/°C
81AQI
76AQI
79AQI
76AQI
2025 Days Vs Air Quality
District 12, Tehran, Tehran Province, Iran
84%
98
16%
18
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 265 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 12, Tehran, Tehran Province, Iran
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
71AQI
75AQI
69AQI
66AQI
77AQI
65AQI
67AQI
68AQI
73AQI
75AQI
79AQI
71AQI
74AQI
77AQI
77AQI
87AQI
85AQI
79AQI
83AQI
87AQI
94AQI
101AQI
92AQI
92AQI
93AQI
95AQI
93AQI
96AQI
103AQI
98AQI
103AQI
107AQI
109AQI
115AQI
115AQI
110AQI
110AQI
101AQI
119AQI
112AQI
113AQI
97AQI
94AQI
100AQI
104AQI
101AQI
104AQI
92AQI
87AQI
85AQI
85AQI
84AQI
83AQI
84AQI
84AQI
81AQI
80AQI
76AQI
71AQI
67AQI
71AQI
77AQI
79AQI
85AQI
92AQI
90AQI
90AQI
92AQI
92AQI
92AQI
87AQI
81AQI
81AQI
80AQI
93AQI
89AQI
93AQI
86AQI
82AQI
89AQI
84AQI
89AQI
98AQI
94AQI
103AQI
95AQI
91AQI
109AQI
96AQI
89AQI
75AQI
78AQI
83AQI
75AQI
77AQI
66AQI
80AQI
78AQI
67AQI
83AQI
79AQI
80AQI
82AQI
90AQI
81AQI
82AQI
76AQI
75AQI
74AQI
72AQI
71AQI
70AQI
69AQI
72AQI
76AQI
78AQI
72AQI
86AQI
92AQI
89AQI
76AQI
No. of days
202586AQI
Highest AQI recorded in
July92AQI
Lowest AQI recorded in
May72AQI
Most & Least Polluted Years Over the Last 1 Years
District 12's annual 2025 AQI (86) shows an average percentage change of NaN% (improved AQI) compared to previous years: .