Ati Saz, Tehran, Tehran, 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
Ati Saz, Tehran, Tehran, Iran
AQI Trends: Highest and Lowest
Same Day Analysis (12th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 77 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Sep - 14th Sep 2025
Ati Saz, Tehran, Tehran, Iran
6 AM13th Sep 2025
7 PM
5 AM14th Sep 2025
AQI
AQI
94AQI
67AQI
In the last 24 hours,
Ati Saz's AQI reached its highest point of 94 at 10 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 13th Sep and 14th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Ati Saz, Tehran, Tehran, Iran
30°C26/32°C
31°C28/34°C
30°C27/32°C
30°C26/33°C
31°C25/35°C
31°C27/34°C
31°C26/35°C
32°C28/35°C
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
--°C/°C
--°C/°C
86AQI
80AQI
86AQI
80AQI
2025 Days Vs Air Quality
Ati Saz, Tehran, Tehran, Iran
6%
15
80%
205
14%
35
Total number of days with different AQI categories in last 256 days in 2025 (109 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% of 256 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
Ati Saz, Tehran, Tehran, Iran
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
79AQI
76AQI
73AQI
80AQI
83AQI
99AQI
106AQI
96AQI
91AQI
104AQI
102AQI
110AQI
96AQI
92AQI
95AQI
93AQI
77AQI
70AQI
74AQI
72AQI
68AQI
73AQI
78AQI
74AQI
76AQI
77AQI
76AQI
72AQI
74AQI
88AQI
103AQI
102AQI
104AQI
92AQI
85AQI
79AQI
73AQI
65AQI
61AQI
57AQI
58AQI
71AQI
77AQI
83AQI
62AQI
58AQI
54AQI
55AQI
52AQI
58AQI
57AQI
48AQI
38AQI
37AQI
30AQI
30AQI
40AQI
35AQI
35AQI
41AQI
37AQI
42AQI
45AQI
58AQI
57AQI
55AQI
48AQI
48AQI
55AQI
48AQI
55AQI
65AQI
79AQI
108AQI
116AQI
111AQI
118AQI
127AQI
123AQI
101AQI
83AQI
72AQI
77AQI
63AQI
74AQI
75AQI
79AQI
79AQI
78AQI
86AQI
71AQI
73AQI
67AQI
65AQI
64AQI
64AQI
68AQI
68AQI
67AQI
73AQI
73AQI
73AQI
90AQI
83AQI
78AQI
75AQI
64AQI
58AQI
65AQI
70AQI
64AQI
68AQI
68AQI
69AQI
77AQI
78AQI
74AQI
74AQI
72AQI
78AQI
75AQI
74AQI
81AQI
75AQI
78AQI
78AQI
76AQI
76AQI
72AQI
68AQI
66AQI
64AQI
66AQI
75AQI
73AQI
76AQI
70AQI
70AQI
69AQI
73AQI
74AQI
80AQI
86AQI
75AQI
70AQI
70AQI
74AQI
78AQI
75AQI
78AQI
73AQI
72AQI
79AQI
77AQI
81AQI
71AQI
74AQI
74AQI
74AQI
68AQI
71AQI
71AQI
73AQI
76AQI
78AQI
83AQI
79AQI
97AQI
101AQI
107AQI
93AQI
105AQI
115AQI
102AQI
99AQI
94AQI
104AQI
104AQI
106AQI
120AQI
116AQI
113AQI
107AQI
107AQI
103AQI
106AQI
114AQI
106AQI
104AQI
100AQI
103AQI
106AQI
102AQI
96AQI
95AQI
87AQI
85AQI
86AQI
84AQI
83AQI
80AQI
83AQI
85AQI
83AQI
84AQI
77AQI
69AQI
69AQI
69AQI
74AQI
76AQI
80AQI
87AQI
87AQI
87AQI
89AQI
91AQI
89AQI
88AQI
82AQI
80AQI
79AQI
91AQI
86AQI
87AQI
82AQI
81AQI
89AQI
80AQI
87AQI
92AQI
87AQI
96AQI
92AQI
89AQI
97AQI
88AQI
88AQI
77AQI
78AQI
79AQI
75AQI
79AQI
68AQI
76AQI
79AQI
62AQI
82AQI
79AQI
79AQI
80AQI
78AQI
80AQI
82AQI
77AQI
85AQI
61AQI
74AQI
71AQI
74AQI
89AQI
91AQI
86AQI
77AQI
No. of days
202579AQI
Highest AQI recorded in
July91AQI
Lowest AQI recorded in
February61AQI
202468AQI
Highest AQI recorded in
December103AQI
Lowest AQI recorded in
May47AQI
202366AQI
Highest AQI recorded in
January97AQI
Lowest AQI recorded in
March46AQI
202282AQI
Highest AQI recorded in
January127AQI
Lowest AQI recorded in
August52AQI
202190AQI
Highest AQI recorded in
January130AQI
Lowest AQI recorded in
May51AQI
202077AQI
Highest AQI recorded in
December113AQI
Lowest AQI recorded in
March57AQI
Most & Least Polluted Years Over the Last 6 Years
Ati Saz's annual 2025 AQI (79) shows an average percentage change of 4.8% (worsened AQI) compared to previous years: 2020 (77), 2021 (90), 2022 (82), 2023 (66), 2024 (68).