Stella Maris College, Chennai, Tamil Nadu, India Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Stella Maris College, Chennai, Tamil Nadu, India
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 61 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Stella Maris College, Chennai, Tamil Nadu, India
5 AM20th Aug 2025
6 PM
4 AM21st Aug 2025
72AQI
53AQI
70AQI
60AQI
In the last 24 hours,
Stella Maris College's AQI reached its highest point of 72 at 3 PM during the Day, while the lowest point, 53, was recorded at 7 AM during the Day between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Stella Maris College, Chennai, Tamil Nadu, India
29°C27/32°C
29°C28/32°C
29°C26/31°C
29°C28/31°C
30°C28/31°C
31°C28/34°C
31°C27/35°C
31°C28/36°C
31°C28/35°C
31°C29/34°C
31°C28/33°C
30°C29/33°C
30°C28/32°C
29°C27/32°C
29°C26/32°C
30°C28/32°C
30°C29/32°C
30°C29/32°C
29°C27/30°C
28°C27/30°C
29°C28/31°C
30°C28/33°C
27°C25/28°C
29°C27/33°C
30°C28/34°C
28°C27/29°C
27°C25/29°C
29°C26/32°C
29°C27/33°C
30°C27/34°C
--°C/°C
66AQI
66AQI
67AQI
67AQI
2025 Days Vs Air Quality
Stella Maris College, Chennai, Tamil Nadu, India
78%
182
21%
48
0.8%
2
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 233 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
Stella Maris College, Chennai, Tamil Nadu, India
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
114AQI
139AQI
142AQI
147AQI
151AQI
154AQI
142AQI
148AQI
144AQI
145AQI
112AQI
117AQI
111AQI
86AQI
81AQI
125AQI
135AQI
125AQI
109AQI
133AQI
133AQI
140AQI
110AQI
110AQI
105AQI
102AQI
113AQI
134AQI
132AQI
127AQI
97AQI
92AQI
84AQI
81AQI
97AQI
120AQI
129AQI
135AQI
133AQI
136AQI
140AQI
112AQI
118AQI
95AQI
99AQI
96AQI
100AQI
118AQI
121AQI
120AQI
107AQI
102AQI
103AQI
96AQI
95AQI
114AQI
120AQI
107AQI
103AQI
81AQI
73AQI
75AQI
73AQI
73AQI
94AQI
114AQI
103AQI
90AQI
92AQI
86AQI
81AQI
72AQI
86AQI
66AQI
71AQI
85AQI
82AQI
76AQI
77AQI
79AQI
78AQI
72AQI
80AQI
86AQI
94AQI
108AQI
96AQI
108AQI
88AQI
94AQI
100AQI
85AQI
72AQI
74AQI
65AQI
66AQI
67AQI
68AQI
64AQI
80AQI
80AQI
90AQI
87AQI
77AQI
70AQI
74AQI
75AQI
72AQI
81AQI
78AQI
78AQI
77AQI
73AQI
73AQI
73AQI
71AQI
65AQI
58AQI
60AQI
64AQI
68AQI
69AQI
79AQI
76AQI
81AQI
75AQI
79AQI
89AQI
92AQI
91AQI
95AQI
92AQI
100AQI
92AQI
96AQI
91AQI
87AQI
82AQI
76AQI
74AQI
69AQI
81AQI
81AQI
72AQI
69AQI
68AQI
74AQI
86AQI
73AQI
81AQI
83AQI
82AQI
83AQI
79AQI
79AQI
91AQI
98AQI
96AQI
86AQI
90AQI
88AQI
90AQI
87AQI
80AQI
75AQI
75AQI
73AQI
74AQI
75AQI
75AQI
75AQI
70AQI
71AQI
68AQI
69AQI
68AQI
66AQI
66AQI
65AQI
64AQI
63AQI
65AQI
68AQI
63AQI
65AQI
65AQI
63AQI
64AQI
67AQI
69AQI
71AQI
73AQI
72AQI
73AQI
69AQI
72AQI
71AQI
70AQI
70AQI
70AQI
69AQI
70AQI
69AQI
68AQI
70AQI
70AQI
67AQI
67AQI
66AQI
65AQI
65AQI
68AQI
69AQI
74AQI
72AQI
70AQI
66AQI
66AQI
71AQI
72AQI
72AQI
69AQI
66AQI
69AQI
64AQI
66AQI
63AQI
62AQI
59AQI
61AQI
60AQI
61AQI
125AQI
110AQI
85AQI
74AQI
81AQI
77AQI
68AQI
67AQI
No. of days
202587AQI
Highest AQI recorded in
January125AQI
Lowest AQI recorded in
August67AQI
202481AQI
Highest AQI recorded in
January121AQI
Lowest AQI recorded in
May51AQI
202391AQI
Highest AQI recorded in
January125AQI
Lowest AQI recorded in
July70AQI
202286AQI
Highest AQI recorded in
December113AQI
Lowest AQI recorded in
April57AQI
202184AQI
Highest AQI recorded in
January134AQI
Lowest AQI recorded in
May42AQI
202083AQI
Highest AQI recorded in
December126AQI
Lowest AQI recorded in
July53AQI
Most & Least Polluted Years Over the Last 6 Years
Stella Maris College's annual 2025 AQI (87) shows an average percentage change of 1.7% (worsened AQI) compared to previous years: 2020 (83), 2021 (84), 2022 (86), 2023 (91), 2024 (81).