Sm Nagar, 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!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
October Air Quality Analysis
Sm Nagar, Chennai, Tamil Nadu, India
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
7th Oct 2025
99AQILowest AQI recorded on
5th Oct 2025
75AQISame Day Analysis (7th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 99 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Sm Nagar, Chennai, Tamil Nadu, India
AQI
Day
Night
.
5 AM7th Oct 2025
5 PM
4 AM8th Oct 2025
Day time
Avg. Highest Time
5PM7th Oct
85AQI
Avg. Lowest Time
5PM7th Oct
85AQI
Night time
Avg. Highest Time
4AM8th Oct
124AQI
Avg. Lowest Time
12AM8th Oct
88AQI
In the last 24 hours,
Sm Nagar's AQI reached its highest point of 124 at 4 AM during the Night, while the lowest point, undefined, was recorded at 4 PM during the Day between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Sm Nagar, Chennai, Tamil Nadu, India
SepOct
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th
Day
Night
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4th Oct 2025949 AMAQI
30°C27/35°C
5th Oct 20255611 AMAQI
5th Oct 20255512 PMAQI
5th Oct 2025581 PMAQI
5th Oct 2025712 PMAQI
5th Oct 2025683 PMAQI
5th Oct 2025814 PMAQI
5th Oct 2025955 PMAQI
5th Oct 20251186 PMAQI
5th Oct 20251087 PMAQI
5th Oct 2025988 PMAQI
5th Oct 2025879 PMAQI
5th Oct 20256710 PMAQI
5th Oct 20256711 PMAQI
6th Oct 20256012 AMAQI
6th Oct 2025651 AMAQI
6th Oct 2025522 AMAQI
6th Oct 2025323 AMAQI
6th Oct 2025364 AMAQI
30°C27/34°C
6th Oct 2025415 AMAQI
6th Oct 2025546 AMAQI
6th Oct 2025597 AMAQI
6th Oct 2025648 AMAQI
6th Oct 2025669 AMAQI
6th Oct 20258310 AMAQI
6th Oct 20259211 AMAQI
6th Oct 20258812 PMAQI
6th Oct 2025841 PMAQI
6th Oct 2025852 PMAQI
6th Oct 2025853 PMAQI
6th Oct 2025794 PMAQI
6th Oct 2025905 PMAQI
6th Oct 20251226 PMAQI
6th Oct 20251407 PMAQI
6th Oct 20251118 PMAQI
6th Oct 20251309 PMAQI
6th Oct 202515110 PMAQI
6th Oct 202515211 PMAQI
30°C27/34°C
7th Oct 2025855 PMAQI
7th Oct 20251086 PMAQI
7th Oct 20251167 PMAQI
7th Oct 20251018 PMAQI
7th Oct 2025959 PMAQI
7th Oct 20259310 PMAQI
7th Oct 20259011 PMAQI
8th Oct 20258812 AMAQI
8th Oct 2025901 AMAQI
8th Oct 2025982 AMAQI
8th Oct 20251073 AMAQI
8th Oct 20251244 AMAQI
29°C27/33°C
8th Oct 20251305 AMAQI
5 AM8th Oct 20251426 AMAQI
8th Oct 20251497 AMAQI
8th Oct 20251168 AMAQI
8th Oct 20251009 AMAQI
8th Oct 20259810 AMAQI
8th Oct 20259511 AMAQI
11 AM8th Oct 20258812 PMAQI
8th Oct 2025811 PMAQI
8th Oct 2025772 PMAQI
8th Oct 2025813 PMAQI
8th Oct 2025894 PMAQI
8th Oct 2025865 PMAQI
5 PM8th Oct 2025936 PMAQI
8th Oct 2025967 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
7 AM
104AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
1 PM
74AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 7 AM (Avg. 104), while the lowest AQI was between 1 PM to 1 PM (Avg. 74).
Night time
Avg. Highest Time
7 PM
115AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM
70AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 115), while the lowest AQI was between 3 AM to 3 AM (Avg. 70).
2025 Days Vs Air Quality
Sm Nagar, Chennai, Tamil Nadu, India
2025
100%
4
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Good
0 DaysModerate
4 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 281 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
Sm Nagar, Chennai, Tamil Nadu, India
AQI levels in 2025
AQI
PM2.5
PM10
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
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3rd January 2025
4th January 2025
5th January 2025
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18th July 2025
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24th July 2025
25th July 2025
26th July 2025
27th July 2025
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30th July 2025
31st July 2025
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2nd August 2025
3rd August 2025
4th August 2025
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10th August 2025
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18th August 2025
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25th August 2025
26th August 2025
27th August 2025
28th August 2025
29th August 2025
30th August 2025
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
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20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
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25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
94AQI
94AQI
5th October 2025
75AQI
75AQI
6th October 2025
79AQI
79AQI
7th October 2025
99AQI
99AQI
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
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30th December 2025
31st December 2025
87AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202587AQI
4
4
Highest AQI recorded in
October87AQI
Lowest AQI recorded in
October87AQI
Most & Least Polluted Years Over the Last 1 Years
Most Polluted Year Recorded
2025(Avg.)
87AQILeast Polluted Year Recorded
2025(Avg.)
87AQISm Nagar's annual 2025 AQI (87) shows an average percentage change of NaN% (improved AQI) compared to previous years: .
