Country Background
HistoryAQIPM₂.₅PM₁₀

Tiruvallur, 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+

September Air Quality Analysis

Tiruvallur, Tamil Nadu, India

2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
11th Sep 2026
78AQI
Lowest AQI recorded on
3rd Sep 2026
40AQI

Same Day Analysis (24th September):
On this day, AQI across the 1 years varied significantly: 2026 ranks 1st highest AQI at 54 of Moderate air quality on the same day.

2026 Days Vs Air Quality

Tiruvallur, Tamil Nadu, India

2026

31%

70

37%

83

14%

32

17%

39

0.4%

1

Total number of days with different AQI categories in last 267 days in 2026 (98 days remaining)

Good
70 Days
Moderate
83 Days
Poor
32 Days
Unhealthy
39 Days
Severe
1 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 31%

Health Risk Level:

High

In 2026, 31% of 267 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.

Annual Air Quality Insights

Tiruvallur, Tamil Nadu, India

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
159AQI (US)
2nd January 2026
171AQI (US)
3rd January 2026
184AQI (US)
4th January 2026
163AQI (US)
5th January 2026
173AQI (US)
6th January 2026
181AQI (US)
7th January 2026
172AQI (US)
8th January 2026
157AQI (US)
9th January 2026
145AQI (US)
10th January 2026
150AQI (US)
11th January 2026
161AQI (US)
12th January 2026
140AQI (US)
13th January 2026
150AQI (US)
14th January 2026
251AQI (US)
15th January 2026
169AQI (US)
16th January 2026
176AQI (US)
17th January 2026
172AQI (US)
18th January 2026
166AQI (US)
19th January 2026
176AQI (US)
20th January 2026
180AQI (US)
21st January 2026
169AQI (US)
22nd January 2026
137AQI (US)
23rd January 2026
164AQI (US)
24th January 2026
155AQI (US)
25th January 2026
117AQI (US)
26th January 2026
97AQI (US)
27th January 2026
154AQI (US)
28th January 2026
175AQI (US)
29th January 2026
183AQI (US)
30th January 2026
170AQI (US)
31st January 2026
131AQI (US)
1st February 2026
159AQI (US)
2nd February 2026
184AQI (US)
3rd February 2026
157AQI (US)
4th February 2026
130AQI (US)
5th February 2026
124AQI (US)
6th February 2026
143AQI (US)
7th February 2026
165AQI (US)
8th February 2026
175AQI (US)
9th February 2026
169AQI (US)
10th February 2026
185AQI (US)
11th February 2026
159AQI (US)
12th February 2026
144AQI (US)
13th February 2026
188AQI (US)
14th February 2026
166AQI (US)
15th February 2026
179AQI (US)
16th February 2026
184AQI (US)
17th February 2026
181AQI (US)
18th February 2026
156AQI (US)
19th February 2026
163AQI (US)
20th February 2026
150AQI (US)
21st February 2026
132AQI (US)
22nd February 2026
134AQI (US)
23rd February 2026
98AQI (US)
24th February 2026
103AQI (US)
25th February 2026
112AQI (US)
26th February 2026
130AQI (US)
27th February 2026
151AQI (US)
28th February 2026
158AQI (US)
1st March 2026
149AQI (US)
2nd March 2026
149AQI (US)
3rd March 2026
147AQI (US)
4th March 2026
126AQI (US)
5th March 2026
128AQI (US)
6th March 2026
138AQI (US)
7th March 2026
135AQI (US)
8th March 2026
118AQI (US)
9th March 2026
125AQI (US)
10th March 2026
138AQI (US)
11th March 2026
129AQI (US)
12th March 2026
120AQI (US)
13th March 2026
100AQI (US)
14th March 2026
92AQI (US)
15th March 2026
75AQI (US)
16th March 2026
63AQI (US)
17th March 2026
76AQI (US)
18th March 2026
74AQI (US)
19th March 2026
66AQI (US)
20th March 2026
83AQI (US)
21st March 2026
82AQI (US)
22nd March 2026
76AQI (US)
23rd March 2026
77AQI (US)
24th March 2026
79AQI (US)
25th March 2026
83AQI (US)
26th March 2026
102AQI (US)
27th March 2026
111AQI (US)
28th March 2026
124AQI (US)
29th March 2026
94AQI (US)
30th March 2026
84AQI (US)
31st March 2026
94AQI (US)
1st April 2026
79AQI (US)
2nd April 2026
60AQI (US)
3rd April 2026
66AQI (US)
4th April 2026
66AQI (US)
5th April 2026
74AQI (US)
6th April 2026
80AQI (US)
7th April 2026
85AQI (US)
8th April 2026
72AQI (US)
9th April 2026
70AQI (US)
10th April 2026
66AQI (US)
11th April 2026
65AQI (US)
12th April 2026
60AQI (US)
13th April 2026
53AQI (US)
14th April 2026
48AQI (US)
15th April 2026
31AQI (US)
16th April 2026
17th April 2026
18th April 2026
19th April 2026
20th April 2026
21st April 2026
22nd April 2026
23rd April 2026
24th April 2026
25th April 2026
26th April 2026
27th April 2026
28th April 2026
29th April 2026
30th April 2026
1st May 2026
2nd May 2026
3rd May 2026
4th May 2026
5th May 2026
6th May 2026
7th May 2026
8th May 2026
9th May 2026
10th May 2026
11th May 2026
12th May 2026
13th May 2026
14th May 2026
15th May 2026
16th May 2026
17th May 2026
18th May 2026
19th May 2026
20th May 2026
21st May 2026
67AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
63AQI (US)
24th May 2026
62AQI (US)
25th May 2026
61AQI (US)
26th May 2026
64AQI (US)
27th May 2026
60AQI (US)
28th May 2026
65AQI (US)
29th May 2026
63AQI (US)
30th May 2026
58AQI (US)
31st May 2026
59AQI (US)
1st June 2026
51AQI (US)
2nd June 2026
56AQI (US)
3rd June 2026
46AQI (US)
4th June 2026
27AQI (US)
5th June 2026
39AQI (US)
6th June 2026
29AQI (US)
7th June 2026
32AQI (US)
8th June 2026
28AQI (US)
9th June 2026
19AQI (US)
10th June 2026
31AQI (US)
11th June 2026
47AQI (US)
12th June 2026
52AQI (US)
13th June 2026
42AQI (US)
14th June 2026
44AQI (US)
15th June 2026
50AQI (US)
16th June 2026
51AQI (US)
17th June 2026
57AQI (US)
18th June 2026
61AQI (US)
19th June 2026
66AQI (US)
20th June 2026
73AQI (US)
21st June 2026
62AQI (US)
22nd June 2026
48AQI (US)
23rd June 2026
41AQI (US)
24th June 2026
44AQI (US)
25th June 2026
46AQI (US)
26th June 2026
47AQI (US)
27th June 2026
52AQI (US)
28th June 2026
51AQI (US)
29th June 2026
36AQI (US)
30th June 2026
32AQI (US)
1st July 2026
25AQI (US)
2nd July 2026
23AQI (US)
3rd July 2026
30AQI (US)
4th July 2026
39AQI (US)
5th July 2026
32AQI (US)
6th July 2026
35AQI (US)
7th July 2026
38AQI (US)
8th July 2026
33AQI (US)
9th July 2026
46AQI (US)
10th July 2026
59AQI (US)
11th July 2026
44AQI (US)
12th July 2026
44AQI (US)
13th July 2026
46AQI (US)
14th July 2026
48AQI (US)
15th July 2026
53AQI (US)
16th July 2026
59AQI (US)
17th July 2026
56AQI (US)
18th July 2026
77AQI (US)
19th July 2026
58AQI (US)
20th July 2026
60AQI (US)
21st July 2026
64AQI (US)
22nd July 2026
46AQI (US)
23rd July 2026
51AQI (US)
24th July 2026
58AQI (US)
25th July 2026
63AQI (US)
26th July 2026
47AQI (US)
27th July 2026
46AQI (US)
28th July 2026
43AQI (US)
29th July 2026
43AQI (US)
30th July 2026
43AQI (US)
31st July 2026
43AQI (US)
1st August 2026
43AQI (US)
2nd August 2026
40AQI (US)
3rd August 2026
52AQI (US)
4th August 2026
40AQI (US)
5th August 2026
39AQI (US)
6th August 2026
47AQI (US)
7th August 2026
40AQI (US)
8th August 2026
43AQI (US)
9th August 2026
38AQI (US)
10th August 2026
42AQI (US)
11th August 2026
41AQI (US)
12th August 2026
51AQI (US)
13th August 2026
49AQI (US)
14th August 2026
49AQI (US)
15th August 2026
41AQI (US)
16th August 2026
41AQI (US)
17th August 2026
45AQI (US)
18th August 2026
46AQI (US)
19th August 2026
44AQI (US)
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
55AQI (US)
28th August 2026
43AQI (US)
29th August 2026
42AQI (US)
30th August 2026
36AQI (US)
31st August 2026
28AQI (US)
1st September 2026
45AQI (US)
2nd September 2026
53AQI (US)
3rd September 2026
40AQI (US)
4th September 2026
50AQI (US)
5th September 2026
60AQI (US)
6th September 2026
60AQI (US)
7th September 2026
49AQI (US)
8th September 2026
63AQI (US)
9th September 2026
60AQI (US)
10th September 2026
71AQI (US)
11th September 2026
78AQI (US)
12th September 2026
65AQI (US)
13th September 2026
63AQI (US)
14th September 2026
53AQI (US)
15th September 2026
73AQI (US)
16th September 2026
67AQI (US)
17th September 2026
66AQI (US)
18th September 2026
46AQI (US)
19th September 2026
54AQI (US)
20th September 2026
45AQI (US)
21st September 2026
47AQI (US)
22nd September 2026
50AQI (US)
23rd September 2026
63AQI (US)
24th September 2026
54AQI (US)
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

163AQI (US)

153AQI (US)

104AQI (US)

65AQI (US)

62AQI (US)

45AQI (US)

47AQI (US)

43AQI (US)

57AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202686AQI (US)

1
7
22
1
1
10
17
16
15
2
13
11
19
11
20
11
21
3
8
16
70
83
32
39
1

Highest AQI (US) recorded in

January

163AQI (US)

Lowest AQI (US) recorded in

August

43AQI (US)

2025142AQI (US)

1
9
3
1
7
8
14
3
2
20
6
2
19
13
34
6

Highest AQI (US) recorded in

December

174AQI (US)

Lowest AQI (US) recorded in

October

78AQI (US)

Most & Least Polluted Years Over the Last 2 Years

Most Polluted Year Recorded
2025(Avg.)
142AQI (US)
Least Polluted Year Recorded
2026(Avg.)
86AQI (US)

Tiruvallur's annual 2026 AQI (US) (86) shows an average percentage change of -39.4% (improved AQI (US)) compared to previous years: 2025 (142).