Alandur Bus Depot, 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
Alandur Bus Depot, 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 4th highest AQI at 59 of Moderate air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Alandur Bus Depot, Chennai, Tamil Nadu, India
5 AM20th Aug 2025
6 PM
4 AM21st Aug 2025
70AQI
56AQI
69AQI
59AQI
In the last 24 hours,
Alandur Bus Depot's AQI reached its highest point of 70 at 4 PM during the Day, while the lowest point, 56, was recorded at 7 AM during the Day between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Alandur Bus Depot, Chennai, Tamil Nadu, India
29°C27/32°C
29°C28/33°C
29°C26/32°C
29°C28/31°C
30°C28/31°C
31°C28/35°C
31°C27/36°C
32°C27/37°C
32°C28/37°C
31°C28/36°C
31°C28/36°C
31°C28/35°C
30°C28/34°C
30°C27/34°C
29°C26/34°C
30°C28/34°C
31°C28/34°C
30°C28/33°C
29°C26/30°C
28°C26/31°C
29°C27/32°C
30°C27/33°C
27°C26/28°C
30°C26/34°C
30°C27/35°C
29°C27/31°C
27°C25/29°C
29°C26/33°C
30°C27/34°C
30°C26/35°C
--°C/°C
65AQI
65AQI
67AQI
67AQI
2025 Days Vs Air Quality
Alandur Bus Depot, Chennai, Tamil Nadu, India
75%
175
25%
57
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
Alandur Bus Depot, Chennai, Tamil Nadu, India
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
109AQI
112AQI
117AQI
121AQI
129AQI
142AQI
139AQI
148AQI
142AQI
146AQI
116AQI
123AQI
118AQI
90AQI
90AQI
125AQI
137AQI
130AQI
107AQI
133AQI
131AQI
136AQI
117AQI
108AQI
113AQI
103AQI
112AQI
131AQI
130AQI
129AQI
108AQI
95AQI
92AQI
93AQI
106AQI
129AQI
130AQI
134AQI
127AQI
135AQI
142AQI
116AQI
124AQI
107AQI
106AQI
95AQI
108AQI
117AQI
122AQI
120AQI
116AQI
93AQI
94AQI
99AQI
97AQI
87AQI
102AQI
101AQI
101AQI
85AQI
82AQI
92AQI
85AQI
85AQI
107AQI
122AQI
109AQI
94AQI
97AQI
120AQI
97AQI
97AQI
109AQI
63AQI
73AQI
112AQI
97AQI
89AQI
87AQI
85AQI
84AQI
77AQI
84AQI
87AQI
92AQI
110AQI
99AQI
109AQI
91AQI
95AQI
102AQI
87AQI
74AQI
78AQI
67AQI
69AQI
68AQI
66AQI
65AQI
80AQI
86AQI
91AQI
88AQI
77AQI
70AQI
74AQI
74AQI
71AQI
83AQI
80AQI
81AQI
78AQI
76AQI
73AQI
76AQI
74AQI
67AQI
60AQI
61AQI
64AQI
68AQI
70AQI
81AQI
78AQI
82AQI
78AQI
82AQI
90AQI
93AQI
93AQI
93AQI
93AQI
99AQI
94AQI
100AQI
98AQI
91AQI
86AQI
81AQI
85AQI
72AQI
82AQI
81AQI
74AQI
70AQI
66AQI
72AQI
94AQI
77AQI
79AQI
81AQI
79AQI
82AQI
75AQI
73AQI
74AQI
86AQI
85AQI
78AQI
78AQI
82AQI
86AQI
89AQI
84AQI
80AQI
74AQI
74AQI
76AQI
79AQI
78AQI
78AQI
75AQI
76AQI
76AQI
79AQI
73AQI
66AQI
65AQI
61AQI
62AQI
66AQI
71AQI
72AQI
65AQI
63AQI
66AQI
63AQI
62AQI
63AQI
64AQI
65AQI
66AQI
66AQI
67AQI
65AQI
64AQI
69AQI
71AQI
72AQI
71AQI
68AQI
68AQI
67AQI
73AQI
77AQI
79AQI
71AQI
64AQI
62AQI
61AQI
62AQI
66AQI
68AQI
73AQI
69AQI
67AQI
63AQI
65AQI
64AQI
65AQI
72AQI
71AQI
67AQI
69AQI
61AQI
60AQI
61AQI
60AQI
57AQI
58AQI
61AQI
59AQI
122AQI
110AQI
94AQI
75AQI
83AQI
76AQI
67AQI
65AQI
No. of days
202588AQI
Highest AQI recorded in
January122AQI
Lowest AQI recorded in
August65AQI
202499AQI
Highest AQI recorded in
January149AQI
Lowest AQI recorded in
September51AQI
2023112AQI
Highest AQI recorded in
February163AQI
Lowest AQI recorded in
October53AQI
2022102AQI
Highest AQI recorded in
December144AQI
Lowest AQI recorded in
April59AQI
202190AQI
Highest AQI recorded in
March133AQI
Lowest AQI recorded in
May62AQI
202078AQI
Highest AQI recorded in
September95AQI
Lowest AQI recorded in
April48AQI
Most & Least Polluted Years Over the Last 6 Years
Alandur Bus Depot's annual 2025 AQI (88) shows an average percentage change of -7.4% (improved AQI) compared to previous years: 2020 (78), 2021 (90), 2022 (102), 2023 (112), 2024 (99).