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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Heilongtan, Meishan, Sichuan, China 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+

August Air Quality Analysis

Heilongtan, Meishan, Sichuan, China

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
22nd Aug 2024
88AQI
Lowest AQI recorded on
1st Aug 2026
30AQI

Same Day Analysis (17th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 34 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 16th Aug - 17th Aug 2026

Heilongtan, Meishan, Sichuan, China

AQI
Day
Night
.

6 AM16th Aug 2026

7 PM

5 AM17th Aug 2026

Day time
Avg. Highest Time
7AM16th Aug

96AQI

Avg. Lowest Time
6PM16th Aug

33AQI

Night time
Avg. Highest Time
10PM16th Aug

102AQI

Avg. Lowest Time
1AM17th Aug

26AQI

In the last 24 hours,

Heilongtan's AQI reached its highest point of 102 at 10 PM during the Night, while the lowest point, 26, was recorded at 1 AM during the Night between 16th Aug and 17th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Heilongtan, Meishan, Sichuan, China

JulAug
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th
Day
Night
19th Jul 2026296 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026338 AMAQI
19th Jul 2026289 AMAQI
19th Jul 20264210 AMAQI
19th Jul 20263411 AMAQI
19th Jul 20263212 PMAQI
19th Jul 2026421 PMAQI
19th Jul 2026442 PMAQI
19th Jul 2026403 PMAQI
19th Jul 2026334 PMAQI
19th Jul 2026345 PMAQI
19th Jul 2026386 PMAQI
19th Jul 2026337 PMAQI
19th Jul 2026388 PMAQI
19th Jul 2026429 PMAQI
19th Jul 20264010 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20263312 AMAQI
20th Jul 2026481 AMAQI
20th Jul 2026552 AMAQI
20th Jul 2026593 AMAQI
20th Jul 2026294 AMAQI
20th Jul 2026335 AMAQI

28°C23/33°C

20th Jul 2026386 AMAQI
20th Jul 2026367 AMAQI
20th Jul 2026388 AMAQI
20th Jul 2026629 AMAQI
20th Jul 20266410 AMAQI
20th Jul 20266611 AMAQI
20th Jul 20265412 PMAQI
20th Jul 2026501 PMAQI
20th Jul 2026402 PMAQI
20th Jul 2026423 PMAQI
20th Jul 2026424 PMAQI
20th Jul 2026405 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026507 PMAQI
20th Jul 2026448 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20264610 PMAQI
20th Jul 20265411 PMAQI
21st Jul 20265412 AMAQI
21st Jul 2026671 AMAQI
21st Jul 2026822 AMAQI
21st Jul 2026843 AMAQI
21st Jul 2026664 AMAQI
21st Jul 2026625 AMAQI

28°C23/33°C

21st Jul 2026666 AMAQI
21st Jul 2026627 AMAQI
21st Jul 2026728 AMAQI
21st Jul 2026839 AMAQI
21st Jul 20268610 AMAQI
21st Jul 20266212 PMAQI
21st Jul 2026591 PMAQI
21st Jul 2026442 PMAQI
21st Jul 2026303 PMAQI
21st Jul 2026294 PMAQI
21st Jul 2026325 PMAQI
21st Jul 2026786 PMAQI
21st Jul 2026317 PMAQI
21st Jul 2026308 PMAQI
21st Jul 2026329 PMAQI
21st Jul 20263210 PMAQI
21st Jul 20263211 PMAQI
22nd Jul 20264212 AMAQI
22nd Jul 2026421 AMAQI
22nd Jul 2026422 AMAQI
22nd Jul 2026563 AMAQI
22nd Jul 2026664 AMAQI
22nd Jul 2026645 AMAQI

28°C24/33°C

22nd Jul 2026686 AMAQI
22nd Jul 2026947 AMAQI
22nd Jul 2026568 AMAQI
22nd Jul 2026659 AMAQI
22nd Jul 20266210 AMAQI
22nd Jul 20266611 AMAQI
22nd Jul 20266812 PMAQI
22nd Jul 2026441 PMAQI
22nd Jul 2026302 PMAQI
22nd Jul 2026313 PMAQI
22nd Jul 2026424 PMAQI
22nd Jul 2026385 PMAQI
22nd Jul 2026426 PMAQI
22nd Jul 2026427 PMAQI
22nd Jul 2026428 PMAQI
22nd Jul 2026429 PMAQI
22nd Jul 20265110 PMAQI
22nd Jul 20265211 PMAQI
23rd Jul 20264412 AMAQI
23rd Jul 2026561 AMAQI
23rd Jul 2026782 AMAQI
23rd Jul 2026683 AMAQI
23rd Jul 2026594 AMAQI
23rd Jul 2026565 AMAQI

29°C25/33°C

23rd Jul 2026566 AMAQI
23rd Jul 2026687 AMAQI
23rd Jul 2026728 AMAQI
23rd Jul 2026889 AMAQI
23rd Jul 20268010 AMAQI
23rd Jul 20265011 AMAQI
23rd Jul 20265112 PMAQI
23rd Jul 2026621 PMAQI
23rd Jul 2026592 PMAQI
23rd Jul 2026523 PMAQI
23rd Jul 2026334 PMAQI
23rd Jul 2026325 PMAQI
23rd Jul 2026306 PMAQI
23rd Jul 2026377 PMAQI
23rd Jul 2026588 PMAQI
23rd Jul 2026699 PMAQI
23rd Jul 20267110 PMAQI
23rd Jul 20269911 PMAQI
24th Jul 20269212 AMAQI
24th Jul 2026881 AMAQI
24th Jul 2026672 AMAQI
24th Jul 2026653 AMAQI
24th Jul 2026524 AMAQI
24th Jul 2026765 AMAQI

30°C26/34°C

24th Jul 2026856 AMAQI
24th Jul 2026837 AMAQI
24th Jul 2026848 AMAQI
24th Jul 2026969 AMAQI
24th Jul 20267210 AMAQI
24th Jul 20265911 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026321 PMAQI
24th Jul 2026522 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026364 PMAQI
24th Jul 2026335 PMAQI
24th Jul 2026316 PMAQI
24th Jul 2026317 PMAQI
24th Jul 2026388 PMAQI
24th Jul 2026449 PMAQI
24th Jul 20265210 PMAQI
24th Jul 20266011 PMAQI
25th Jul 20266212 AMAQI
25th Jul 2026761 AMAQI
25th Jul 2026822 AMAQI
25th Jul 20261003 AMAQI
25th Jul 2026984 AMAQI
25th Jul 2026975 AMAQI

29°C25/34°C

25th Jul 20261006 AMAQI
25th Jul 2026767 AMAQI
25th Jul 2026528 AMAQI
25th Jul 2026739 AMAQI
25th Jul 20267510 AMAQI
25th Jul 20266611 AMAQI
25th Jul 20265112 PMAQI
25th Jul 2026461 PMAQI
25th Jul 2026362 PMAQI
25th Jul 2026223 PMAQI
25th Jul 2026504 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026336 PMAQI
25th Jul 2026387 PMAQI
25th Jul 2026508 PMAQI
25th Jul 2026429 PMAQI
25th Jul 20265010 PMAQI
25th Jul 20263411 PMAQI
26th Jul 20263112 AMAQI
26th Jul 2026341 AMAQI
26th Jul 2026522 AMAQI
26th Jul 2026523 AMAQI
26th Jul 2026484 AMAQI
26th Jul 2026515 AMAQI

29°C26/33°C

26th Jul 2026686 AMAQI
26th Jul 2026727 AMAQI
26th Jul 2026698 AMAQI
26th Jul 2026769 AMAQI
26th Jul 20269510 AMAQI
26th Jul 20268811 AMAQI
26th Jul 20268012 PMAQI
26th Jul 2026491 PMAQI
26th Jul 2026262 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026444 PMAQI
26th Jul 2026505 PMAQI
26th Jul 2026446 PMAQI
26th Jul 2026447 PMAQI
26th Jul 2026408 PMAQI
26th Jul 2026489 PMAQI
26th Jul 20265610 PMAQI
26th Jul 20265911 PMAQI
27th Jul 20265912 AMAQI
27th Jul 2026601 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026303 AMAQI
27th Jul 2026224 AMAQI
27th Jul 2026255 AMAQI

29°C25/33°C

27th Jul 2026386 AMAQI
27th Jul 2026337 AMAQI
27th Jul 2026338 AMAQI
27th Jul 2026389 AMAQI
27th Jul 20263810 AMAQI
27th Jul 20264811 AMAQI
27th Jul 20265112 PMAQI
27th Jul 2026231 PMAQI
27th Jul 2026492 PMAQI
27th Jul 2026523 PMAQI
27th Jul 2026294 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026219 PMAQI
27th Jul 20265810 PMAQI
27th Jul 20266711 PMAQI
28th Jul 20265812 AMAQI
28th Jul 2026231 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026253 AMAQI
28th Jul 2026274 AMAQI
28th Jul 2026275 AMAQI

25°C23/28°C

28th Jul 2026336 AMAQI
28th Jul 2026337 AMAQI
28th Jul 2026368 AMAQI
28th Jul 2026469 AMAQI
28th Jul 20265210 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20263312 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026363 PMAQI
28th Jul 2026464 PMAQI
28th Jul 2026535 PMAQI
28th Jul 2026476 PMAQI
28th Jul 2026347 PMAQI
28th Jul 2026318 PMAQI
28th Jul 2026319 PMAQI
28th Jul 20263110 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20265212 AMAQI
29th Jul 2026601 AMAQI
29th Jul 2026672 AMAQI
29th Jul 2026693 AMAQI
29th Jul 2026504 AMAQI
29th Jul 2026385 AMAQI

25°C23/29°C

29th Jul 2026486 AMAQI
29th Jul 2026387 AMAQI
29th Jul 2026368 AMAQI
29th Jul 2026469 AMAQI
29th Jul 20267010 AMAQI
29th Jul 20268211 AMAQI
29th Jul 20266212 PMAQI
29th Jul 2026481 PMAQI
29th Jul 2026402 PMAQI
29th Jul 2026413 PMAQI
29th Jul 2026514 PMAQI
29th Jul 2026515 PMAQI
29th Jul 2026546 PMAQI
29th Jul 2026587 PMAQI
29th Jul 2026428 PMAQI
29th Jul 2026349 PMAQI
29th Jul 20264910 PMAQI
29th Jul 20266211 PMAQI
30th Jul 20267412 AMAQI
30th Jul 2026851 AMAQI
30th Jul 2026782 AMAQI
30th Jul 2026503 AMAQI
30th Jul 2026294 AMAQI
30th Jul 2026275 AMAQI

27°C23/30°C

30th Jul 2026256 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026339 AMAQI
30th Jul 20263310 AMAQI
30th Jul 20263811 AMAQI
30th Jul 20264612 PMAQI
30th Jul 2026441 PMAQI
30th Jul 2026442 PMAQI
30th Jul 2026443 PMAQI
30th Jul 2026424 PMAQI
30th Jul 2026445 PMAQI
30th Jul 2026426 PMAQI
30th Jul 2026277 PMAQI
30th Jul 2026238 PMAQI
30th Jul 2026299 PMAQI
30th Jul 20264210 PMAQI
30th Jul 20264811 PMAQI
31st Jul 20265112 AMAQI
31st Jul 2026511 AMAQI
31st Jul 2026322 AMAQI
31st Jul 2026693 AMAQI
31st Jul 2026644 AMAQI
31st Jul 2026255 AMAQI

25°C23/28°C

31st Jul 2026426 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20264010 AMAQI
31st Jul 20263611 AMAQI
31st Jul 20264012 PMAQI
31st Jul 2026401 PMAQI
31st Jul 2026232 PMAQI
31st Jul 2026423 PMAQI
31st Jul 2026274 PMAQI
31st Jul 2026315 PMAQI
31st Jul 2026446 PMAQI
31st Jul 2026427 PMAQI
31st Jul 2026368 PMAQI
31st Jul 2026509 PMAQI
31st Jul 20265410 PMAQI
31st Jul 20262311 PMAQI
1st Aug 20263212 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026332 AMAQI
1st Aug 2026443 AMAQI
1st Aug 2026364 AMAQI
1st Aug 2026275 AMAQI

24°C23/27°C

1st Aug 2026236 AMAQI
1st Aug 2026297 AMAQI
1st Aug 2026298 AMAQI
1st Aug 2026259 AMAQI
1st Aug 20263410 AMAQI
1st Aug 20262311 AMAQI
1st Aug 20262312 PMAQI
1st Aug 2026311 PMAQI
1st Aug 2026342 PMAQI
1st Aug 2026423 PMAQI
1st Aug 2026304 PMAQI
1st Aug 2026215 PMAQI
1st Aug 2026236 PMAQI
1st Aug 2026317 PMAQI
1st Aug 2026318 PMAQI
1st Aug 2026279 PMAQI
1st Aug 20262510 PMAQI
1st Aug 20262511 PMAQI
2nd Aug 20262512 AMAQI
2nd Aug 2026271 AMAQI
2nd Aug 2026292 AMAQI
2nd Aug 2026293 AMAQI
2nd Aug 2026314 AMAQI
2nd Aug 2026335 AMAQI

23°C22/25°C

2nd Aug 2026296 AMAQI
2nd Aug 2026297 AMAQI
2nd Aug 2026278 AMAQI
2nd Aug 2026239 AMAQI
2nd Aug 20262110 AMAQI
2nd Aug 20262311 AMAQI
2nd Aug 20262312 PMAQI
2nd Aug 2026401 PMAQI
2nd Aug 2026442 PMAQI
2nd Aug 2026383 PMAQI
2nd Aug 2026334 PMAQI
2nd Aug 2026365 PMAQI
2nd Aug 2026326 PMAQI
2nd Aug 2026277 PMAQI
2nd Aug 2026348 PMAQI
2nd Aug 2026349 PMAQI
2nd Aug 20262710 PMAQI
2nd Aug 20262311 PMAQI
3rd Aug 20262912 AMAQI
3rd Aug 2026341 AMAQI
3rd Aug 2026232 AMAQI
3rd Aug 2026383 AMAQI
3rd Aug 2026384 AMAQI
3rd Aug 2026445 AMAQI

21°C20/23°C

3rd Aug 2026446 AMAQI
3rd Aug 2026487 AMAQI
3rd Aug 2026578 AMAQI
3rd Aug 2026559 AMAQI
3rd Aug 20265710 AMAQI
3rd Aug 20264611 AMAQI
3rd Aug 20262812 PMAQI
3rd Aug 2026361 PMAQI
3rd Aug 2026422 PMAQI
3rd Aug 2026403 PMAQI
3rd Aug 2026384 PMAQI
3rd Aug 2026385 PMAQI
3rd Aug 2026366 PMAQI
3rd Aug 2026337 PMAQI
3rd Aug 2026388 PMAQI
3rd Aug 2026389 PMAQI
3rd Aug 20263810 PMAQI
3rd Aug 20263611 PMAQI
4th Aug 20263112 AMAQI
4th Aug 2026381 AMAQI
4th Aug 2026362 AMAQI
4th Aug 2026273 AMAQI
4th Aug 2026254 AMAQI
4th Aug 2026255 AMAQI

25°C21/30°C

4th Aug 2026276 AMAQI
4th Aug 2026317 AMAQI
4th Aug 2026258 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262710 AMAQI
4th Aug 20262311 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026331 PMAQI
4th Aug 2026332 PMAQI
4th Aug 2026423 PMAQI
4th Aug 2026384 PMAQI
4th Aug 2026385 PMAQI
4th Aug 2026456 PMAQI
4th Aug 2026487 PMAQI
4th Aug 2026578 PMAQI
4th Aug 2026699 PMAQI
4th Aug 20265610 PMAQI
4th Aug 20263811 PMAQI
5th Aug 20264812 AMAQI
5th Aug 2026621 AMAQI
5th Aug 2026782 AMAQI
5th Aug 2026823 AMAQI
5th Aug 2026764 AMAQI
5th Aug 20261005 AMAQI

25°C21/30°C

5th Aug 2026876 AMAQI
5th Aug 2026957 AMAQI
5th Aug 2026868 AMAQI
5th Aug 2026949 AMAQI
5th Aug 20268610 AMAQI
5th Aug 20268511 AMAQI
5th Aug 20268412 PMAQI
5th Aug 2026621 PMAQI
5th Aug 2026482 PMAQI
5th Aug 2026223 PMAQI
5th Aug 2026334 PMAQI
5th Aug 2026445 PMAQI
5th Aug 2026366 PMAQI
5th Aug 2026557 PMAQI
5th Aug 2026518 PMAQI
5th Aug 2026519 PMAQI
5th Aug 20265610 PMAQI
5th Aug 20263211 PMAQI
6th Aug 20263212 AMAQI
6th Aug 2026481 AMAQI
6th Aug 2026812 AMAQI
6th Aug 20261003 AMAQI
6th Aug 2026534 AMAQI
6th Aug 2026365 AMAQI

28°C24/32°C

6th Aug 2026386 AMAQI
6th Aug 2026527 AMAQI
6th Aug 2026528 AMAQI
6th Aug 2026669 AMAQI
6th Aug 20267110 AMAQI
6th Aug 20267811 AMAQI
6th Aug 20263212 PMAQI
6th Aug 2026331 PMAQI
6th Aug 2026332 PMAQI
6th Aug 2026403 PMAQI
6th Aug 2026484 PMAQI
6th Aug 2026385 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026257 PMAQI
6th Aug 2026258 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20262510 PMAQI
6th Aug 20262211 PMAQI
7th Aug 20262612 AMAQI
7th Aug 2026491 AMAQI
7th Aug 2026542 AMAQI
7th Aug 2026813 AMAQI
7th Aug 2026824 AMAQI
7th Aug 20261005 AMAQI

27°C25/32°C

7th Aug 20261056 AMAQI
7th Aug 2026947 AMAQI
7th Aug 2026938 AMAQI
7th Aug 2026909 AMAQI
7th Aug 20269410 AMAQI
7th Aug 20269611 AMAQI
7th Aug 20267812 PMAQI
7th Aug 2026461 PMAQI
7th Aug 2026342 PMAQI
7th Aug 2026323 PMAQI
7th Aug 2026234 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026297 PMAQI
7th Aug 2026338 PMAQI
7th Aug 2026309 PMAQI
7th Aug 20264410 PMAQI
7th Aug 20267311 PMAQI
8th Aug 202610212 AMAQI
8th Aug 2026721 AMAQI
8th Aug 2026672 AMAQI
8th Aug 2026703 AMAQI
8th Aug 2026714 AMAQI
8th Aug 2026735 AMAQI

27°C24/31°C

8th Aug 2026726 AMAQI
8th Aug 2026587 AMAQI
8th Aug 2026528 AMAQI
8th Aug 2026639 AMAQI
8th Aug 20266710 AMAQI
8th Aug 20266511 AMAQI
8th Aug 20264912 PMAQI
8th Aug 2026331 PMAQI
8th Aug 2026292 PMAQI
8th Aug 2026313 PMAQI
8th Aug 2026364 PMAQI
8th Aug 2026405 PMAQI
8th Aug 2026486 PMAQI
8th Aug 2026297 PMAQI
8th Aug 2026368 PMAQI
8th Aug 2026449 PMAQI
8th Aug 20264010 PMAQI
8th Aug 20263611 PMAQI
9th Aug 20263612 AMAQI
9th Aug 2026401 AMAQI
9th Aug 2026532 AMAQI
9th Aug 2026563 AMAQI
9th Aug 2026794 AMAQI
9th Aug 2026885 AMAQI

28°C24/31°C

9th Aug 2026926 AMAQI
9th Aug 2026767 AMAQI
9th Aug 2026868 AMAQI
9th Aug 2026859 AMAQI
9th Aug 20267010 AMAQI
9th Aug 20266911 AMAQI
9th Aug 20267212 PMAQI
9th Aug 2026721 PMAQI
9th Aug 2026532 PMAQI
9th Aug 2026463 PMAQI
9th Aug 2026284 PMAQI
9th Aug 2026245 PMAQI
9th Aug 2026306 PMAQI
9th Aug 2026327 PMAQI
9th Aug 2026388 PMAQI
9th Aug 2026339 PMAQI
9th Aug 20264810 PMAQI
9th Aug 20265311 PMAQI
10th Aug 20265512 AMAQI
10th Aug 2026701 AMAQI
10th Aug 2026832 AMAQI
10th Aug 2026893 AMAQI
10th Aug 2026904 AMAQI
10th Aug 20261075 AMAQI

27°C24/32°C

10th Aug 2026946 AMAQI
10th Aug 2026967 AMAQI
10th Aug 2026948 AMAQI
10th Aug 2026979 AMAQI
10th Aug 20269510 AMAQI
10th Aug 20266611 AMAQI
10th Aug 20264912 PMAQI
10th Aug 2026531 PMAQI
10th Aug 2026422 PMAQI
10th Aug 2026363 PMAQI
10th Aug 2026444 PMAQI
10th Aug 2026485 PMAQI
10th Aug 2026526 PMAQI
10th Aug 2026497 PMAQI
10th Aug 2026548 PMAQI
10th Aug 2026679 PMAQI
10th Aug 20267810 PMAQI
10th Aug 202610411 PMAQI
11th Aug 202611512 AMAQI
11th Aug 20261151 AMAQI
11th Aug 20261382 AMAQI
11th Aug 20261243 AMAQI
11th Aug 20261304 AMAQI
11th Aug 20261125 AMAQI

29°C25/33°C

11th Aug 2026926 AMAQI
11th Aug 20261017 AMAQI
11th Aug 2026988 AMAQI
11th Aug 2026859 AMAQI
11th Aug 20267410 AMAQI
11th Aug 20267611 AMAQI
11th Aug 20266012 PMAQI
11th Aug 2026551 PMAQI
11th Aug 2026522 PMAQI
11th Aug 2026503 PMAQI
11th Aug 2026584 PMAQI
11th Aug 2026575 PMAQI
11th Aug 2026556 PMAQI
11th Aug 2026607 PMAQI
11th Aug 2026858 PMAQI
11th Aug 2026969 PMAQI
11th Aug 20266910 PMAQI
11th Aug 20265611 PMAQI
12th Aug 20266312 AMAQI
12th Aug 2026291 AMAQI
12th Aug 2026232 AMAQI
12th Aug 2026293 AMAQI
12th Aug 2026294 AMAQI
12th Aug 2026255 AMAQI

29°C26/34°C

12th Aug 2026256 AMAQI
12th Aug 2026297 AMAQI
12th Aug 2026258 AMAQI
12th Aug 2026239 AMAQI
12th Aug 20262510 AMAQI
12th Aug 20262511 AMAQI
12th Aug 20262712 PMAQI
12th Aug 2026291 PMAQI
12th Aug 2026342 PMAQI
12th Aug 2026293 PMAQI
12th Aug 2026254 PMAQI
12th Aug 2026295 PMAQI
12th Aug 2026296 PMAQI
12th Aug 2026337 PMAQI
12th Aug 2026338 PMAQI
12th Aug 2026299 PMAQI
12th Aug 20263110 PMAQI
12th Aug 20263611 PMAQI
13th Aug 20263812 AMAQI
13th Aug 2026571 AMAQI
13th Aug 2026682 AMAQI
13th Aug 2026573 AMAQI
13th Aug 2026564 AMAQI
13th Aug 2026525 AMAQI

28°C23/34°C

13th Aug 2026276 AMAQI
13th Aug 2026467 AMAQI
13th Aug 2026218 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20263810 AMAQI
13th Aug 20264811 AMAQI
13th Aug 20264212 PMAQI
13th Aug 2026381 PMAQI
13th Aug 2026292 PMAQI
13th Aug 2026343 PMAQI
13th Aug 2026334 PMAQI
13th Aug 2026425 PMAQI
13th Aug 2026446 PMAQI
13th Aug 2026527 PMAQI
13th Aug 2026588 PMAQI
13th Aug 2026429 PMAQI
13th Aug 20262910 PMAQI
13th Aug 20264611 PMAQI
14th Aug 20265912 AMAQI
14th Aug 2026641 AMAQI
14th Aug 2026532 AMAQI
14th Aug 2026463 AMAQI
14th Aug 2026424 AMAQI
14th Aug 2026665 AMAQI

29°C26/34°C

14th Aug 2026526 AMAQI
14th Aug 2026527 AMAQI
14th Aug 2026658 AMAQI
14th Aug 2026709 AMAQI
14th Aug 20266510 AMAQI
14th Aug 20264811 AMAQI
14th Aug 20262912 PMAQI
14th Aug 2026271 PMAQI
14th Aug 2026212 PMAQI
14th Aug 2026253 PMAQI
14th Aug 2026334 PMAQI
14th Aug 2026295 PMAQI
14th Aug 2026296 PMAQI
14th Aug 2026257 PMAQI
14th Aug 2026248 PMAQI
14th Aug 2026289 PMAQI
14th Aug 20265010 PMAQI
14th Aug 20264411 PMAQI
15th Aug 20265412 AMAQI
15th Aug 2026701 AMAQI
15th Aug 2026942 AMAQI
15th Aug 2026923 AMAQI
15th Aug 2026964 AMAQI
15th Aug 2026875 AMAQI

29°C25/33°C

15th Aug 2026846 AMAQI
15th Aug 2026767 AMAQI
15th Aug 2026928 AMAQI
15th Aug 20261089 AMAQI
15th Aug 202611610 AMAQI
15th Aug 20269411 AMAQI
15th Aug 20268112 PMAQI
15th Aug 2026821 PMAQI
15th Aug 2026642 PMAQI
15th Aug 2026343 PMAQI
15th Aug 2026284 PMAQI
15th Aug 2026315 PMAQI
15th Aug 2026256 PMAQI
15th Aug 2026317 PMAQI
15th Aug 2026388 PMAQI
15th Aug 2026589 PMAQI
15th Aug 20267310 PMAQI
15th Aug 20268911 PMAQI
16th Aug 20269912 AMAQI
16th Aug 20261361 AMAQI
16th Aug 20261202 AMAQI
16th Aug 20261003 AMAQI
16th Aug 2026864 AMAQI
16th Aug 2026835 AMAQI

29°C25/33°C

16th Aug 2026866 AMAQI
16th Aug 2026967 AMAQI
16th Aug 2026898 AMAQI
16th Aug 2026699 AMAQI
16th Aug 20265010 AMAQI
16th Aug 20265511 AMAQI
16th Aug 20265312 PMAQI
16th Aug 2026521 PMAQI
16th Aug 2026542 PMAQI
16th Aug 2026583 PMAQI
16th Aug 2026714 PMAQI
16th Aug 2026515 PMAQI
16th Aug 2026336 PMAQI
16th Aug 2026367 PMAQI
16th Aug 2026538 PMAQI
16th Aug 2026739 PMAQI
16th Aug 202610210 PMAQI
16th Aug 20266211 PMAQI
17th Aug 20265112 AMAQI
17th Aug 2026261 AMAQI
17th Aug 2026382 AMAQI
17th Aug 2026503 AMAQI
17th Aug 2026624 AMAQI
17th Aug 2026645 AMAQI

29°C26/33°C

17th Aug 2026596 AMAQI
6 AM
17th Aug 2026217 AMAQI
17th Aug 2026338 AMAQI
17th Aug 2026219 AMAQI
17th Aug 20262110 AMAQI
17th Aug 20262111 AMAQI
17th Aug 20262112 PMAQI
12 PM
17th Aug 2026211 PMAQI
17th Aug 2026362 PMAQI
17th Aug 2026403 PMAQI
17th Aug 2026384 PMAQI
17th Aug 2026295 PMAQI
17th Aug 2026336 PMAQI
17th Aug 2026337 PMAQI
7 PM
17th Aug 2026338 PMAQI
17th Aug 2026219 PMAQI
17th Aug 20262110 PMAQI
17th Aug 20262711 PMAQI
12 AM
5 AM

12°C12/14°C

Day time
Avg. Highest Time
9 AM - 10 AM

61AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
3 PM - 7 PM

38AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 10 AM (Avg. 61), while the lowest AQI was between 3 PM to 7 PM (Avg. 38).
Night time
Avg. Highest Time
3 AM

62AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM

40AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 3 AM (Avg. 62), while the lowest AQI was between 8 PM to 8 PM (Avg. 40).

2026 Days Vs Air Quality

Heilongtan, Meishan, Sichuan, China

2026

30%

68

48%

109

16%

37

7%

15

Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)

Good
68 Days
Moderate
109 Days
Poor
37 Days
Unhealthy
15 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 30%

Health Risk Level:

High

In 2026, 30% of 229 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

Heilongtan, Meishan, Sichuan, China

AQI levels in 2026

AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
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
71AQI (US)
2nd January 2026
98AQI (US)
3rd January 2026
53AQI (US)
4th January 2026
72AQI (US)
5th January 2026
132AQI (US)
6th January 2026
104AQI (US)
7th January 2026
122AQI (US)
8th January 2026
140AQI (US)
9th January 2026
154AQI (US)
10th January 2026
169AQI (US)
11th January 2026
186AQI (US)
12th January 2026
190AQI (US)
13th January 2026
186AQI (US)
14th January 2026
170AQI (US)
15th January 2026
158AQI (US)
16th January 2026
166AQI (US)
17th January 2026
180AQI (US)
18th January 2026
190AQI (US)
19th January 2026
126AQI (US)
20th January 2026
54AQI (US)
21st January 2026
95AQI (US)
22nd January 2026
115AQI (US)
23rd January 2026
89AQI (US)
24th January 2026
149AQI (US)
25th January 2026
148AQI (US)
26th January 2026
133AQI (US)
27th January 2026
146AQI (US)
28th January 2026
144AQI (US)
29th January 2026
156AQI (US)
30th January 2026
116AQI (US)
31st January 2026
138AQI (US)
1st February 2026
146AQI (US)
2nd February 2026
146AQI (US)
3rd February 2026
153AQI (US)
4th February 2026
151AQI (US)
5th February 2026
156AQI (US)
6th February 2026
155AQI (US)
7th February 2026
131AQI (US)
8th February 2026
76AQI (US)
9th February 2026
72AQI (US)
10th February 2026
81AQI (US)
11th February 2026
94AQI (US)
12th February 2026
122AQI (US)
13th February 2026
131AQI (US)
14th February 2026
147AQI (US)
15th February 2026
132AQI (US)
16th February 2026
71AQI (US)
17th February 2026
141AQI (US)
18th February 2026
129AQI (US)
19th February 2026
128AQI (US)
20th February 2026
132AQI (US)
21st February 2026
138AQI (US)
22nd February 2026
142AQI (US)
23rd February 2026
149AQI (US)
24th February 2026
68AQI (US)
25th February 2026
86AQI (US)
26th February 2026
76AQI (US)
27th February 2026
69AQI (US)
28th February 2026
86AQI (US)
1st March 2026
35AQI (US)
2nd March 2026
50AQI (US)
3rd March 2026
38AQI (US)
4th March 2026
46AQI (US)
5th March 2026
67AQI (US)
6th March 2026
91AQI (US)
7th March 2026
106AQI (US)
8th March 2026
61AQI (US)
9th March 2026
26AQI (US)
10th March 2026
46AQI (US)
11th March 2026
94AQI (US)
12th March 2026
106AQI (US)
13th March 2026
99AQI (US)
14th March 2026
40AQI (US)
15th March 2026
52AQI (US)
16th March 2026
71AQI (US)
17th March 2026
40AQI (US)
18th March 2026
36AQI (US)
19th March 2026
55AQI (US)
20th March 2026
71AQI (US)
21st March 2026
68AQI (US)
22nd March 2026
93AQI (US)
23rd March 2026
64AQI (US)
24th March 2026
66AQI (US)
25th March 2026
80AQI (US)
26th March 2026
57AQI (US)
27th March 2026
73AQI (US)
28th March 2026
74AQI (US)
29th March 2026
67AQI (US)
30th March 2026
43AQI (US)
31st March 2026
25AQI (US)
1st April 2026
49AQI (US)
2nd April 2026
54AQI (US)
3rd April 2026
80AQI (US)
4th April 2026
70AQI (US)
5th April 2026
88AQI (US)
6th April 2026
62AQI (US)
7th April 2026
32AQI (US)
8th April 2026
61AQI (US)
9th April 2026
75AQI (US)
10th April 2026
59AQI (US)
11th April 2026
45AQI (US)
12th April 2026
62AQI (US)
13th April 2026
55AQI (US)
14th April 2026
40AQI (US)
15th April 2026
53AQI (US)
16th April 2026
88AQI (US)
17th April 2026
30AQI (US)
18th April 2026
64AQI (US)
19th April 2026
95AQI (US)
20th April 2026
93AQI (US)
21st April 2026
45AQI (US)
22nd April 2026
52AQI (US)
23rd April 2026
75AQI (US)
24th April 2026
91AQI (US)
25th April 2026
113AQI (US)
26th April 2026
111AQI (US)
27th April 2026
72AQI (US)
28th April 2026
27AQI (US)
29th April 2026
37AQI (US)
30th April 2026
64AQI (US)
1st May 2026
108AQI (US)
2nd May 2026
45AQI (US)
3rd May 2026
32AQI (US)
4th May 2026
47AQI (US)
5th May 2026
87AQI (US)
6th May 2026
87AQI (US)
7th May 2026
62AQI (US)
8th May 2026
45AQI (US)
9th May 2026
58AQI (US)
10th May 2026
52AQI (US)
11th May 2026
79AQI (US)
12th May 2026
104AQI (US)
13th May 2026
96AQI (US)
14th May 2026
110AQI (US)
15th May 2026
75AQI (US)
16th May 2026
94AQI (US)
17th May 2026
100AQI (US)
18th May 2026
95AQI (US)
19th May 2026
98AQI (US)
20th May 2026
113AQI (US)
21st May 2026
125AQI (US)
22nd May 2026
116AQI (US)
23rd May 2026
91AQI (US)
24th May 2026
84AQI (US)
25th May 2026
91AQI (US)
26th May 2026
68AQI (US)
27th May 2026
57AQI (US)
28th May 2026
46AQI (US)
29th May 2026
53AQI (US)
30th May 2026
64AQI (US)
31st May 2026
93AQI (US)
1st June 2026
89AQI (US)
2nd June 2026
68AQI (US)
3rd June 2026
62AQI (US)
4th June 2026
64AQI (US)
5th June 2026
65AQI (US)
6th June 2026
98AQI (US)
7th June 2026
38AQI (US)
8th June 2026
21AQI (US)
9th June 2026
25AQI (US)
10th June 2026
34AQI (US)
11th June 2026
25AQI (US)
12th June 2026
53AQI (US)
13th June 2026
45AQI (US)
14th June 2026
74AQI (US)
15th June 2026
89AQI (US)
16th June 2026
71AQI (US)
17th June 2026
47AQI (US)
18th June 2026
64AQI (US)
19th June 2026
53AQI (US)
20th June 2026
34AQI (US)
21st June 2026
19AQI (US)
22nd June 2026
24AQI (US)
23rd June 2026
25AQI (US)
24th June 2026
35AQI (US)
25th June 2026
15AQI (US)
26th June 2026
24AQI (US)
27th June 2026
46AQI (US)
28th June 2026
47AQI (US)
29th June 2026
19AQI (US)
30th June 2026
35AQI (US)
1st July 2026
70AQI (US)
2nd July 2026
60AQI (US)
3rd July 2026
35AQI (US)
4th July 2026
45AQI (US)
5th July 2026
45AQI (US)
6th July 2026
43AQI (US)
7th July 2026
74AQI (US)
8th July 2026
67AQI (US)
9th July 2026
58AQI (US)
10th July 2026
68AQI (US)
11th July 2026
23AQI (US)
12th July 2026
31AQI (US)
13th July 2026
18AQI (US)
14th July 2026
56AQI (US)
15th July 2026
24AQI (US)
16th July 2026
40AQI (US)
17th July 2026
36AQI (US)
18th July 2026
38AQI (US)
19th July 2026
36AQI (US)
20th July 2026
46AQI (US)
21st July 2026
55AQI (US)
22nd July 2026
52AQI (US)
23rd July 2026
60AQI (US)
24th July 2026
58AQI (US)
25th July 2026
60AQI (US)
26th July 2026
54AQI (US)
27th July 2026
37AQI (US)
28th July 2026
35AQI (US)
29th July 2026
52AQI (US)
30th July 2026
42AQI (US)
31st July 2026
39AQI (US)
1st August 2026
30AQI (US)
2nd August 2026
30AQI (US)
3rd August 2026
40AQI (US)
4th August 2026
36AQI (US)
5th August 2026
65AQI (US)
6th August 2026
45AQI (US)
7th August 2026
60AQI (US)
8th August 2026
53AQI (US)
9th August 2026
57AQI (US)
10th August 2026
71AQI (US)
11th August 2026
84AQI (US)
12th August 2026
30AQI (US)
13th August 2026
43AQI (US)
14th August 2026
44AQI (US)
15th August 2026
71AQI (US)
16th August 2026
74AQI (US)
17th August 2026
34AQI (US)
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
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

134AQI (US)

118AQI (US)

63AQI (US)

65AQI (US)

80AQI (US)

47AQI (US)

47AQI (US)

51AQI (US)

No. of days

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

202677AQI (US)

7
13
11
10
14
4
11
18
2
8
20
2
5
20
6
18
12
17
14
9
8
68
109
37
15

Highest AQI (US) recorded in

January

134AQI (US)

Lowest AQI (US) recorded in

July

47AQI (US)

202589AQI (US)

19
12
15
13
17
14
20
9
1
22
9
8
22
15
16
11
20
12
18
6
24
1
2
18
1
9
4
10
17
54
196
76
39

Highest AQI (US) recorded in

January

147AQI (US)

Lowest AQI (US) recorded in

July

52AQI (US)

202481AQI (US)

7
9
1
1
3
9
30
17
14
2
29
18
11
6
23
2
3
24
3
6
16
9
33
153
39
18

Highest AQI (US) recorded in

January

152AQI (US)

Lowest AQI (US) recorded in

March

13AQI (US)

2023134AQI (US)

1
2
6
13
11
1
7
15
11
1

Highest AQI (US) recorded in

December

135AQI (US)

Lowest AQI (US) recorded in

November

119AQI (US)

2022106AQI (US)

1
14
6
10
11
8
13
2
7
1
3
26
38
6

Highest AQI (US) recorded in

January

144AQI (US)

Lowest AQI (US) recorded in

May

43AQI (US)

202183AQI (US)

4
17
9
1
10
13
4
16
15
3
26
1
1
15
2
6
22
2
10
17
15
16
16
11
6
11
14
4
10
14
4
58
172
68
17

Highest AQI (US) recorded in

January

131AQI (US)

Lowest AQI (US) recorded in

September

53AQI (US)

202078AQI (US)

2
8
3
19
1
1
13
5
1
26
3
8
23
13
16
2
6
24
5
23
3
18
8
4
12
16
3
35
182
41
8

Highest AQI (US) recorded in

December

109AQI (US)

Lowest AQI (US) recorded in

September

59AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
134AQI (US)
Least Polluted Year Recorded
2026(Avg.)
77AQI (US)

Heilongtan's annual 2026 AQI (US) (77) shows an average percentage change of -16.1% (improved AQI (US)) compared to previous years: 2020 (78), 2021 (83), 2022 (106), 2023 (134), 2024 (81), 2025 (89).