Star Electromechanical, Hegang, Heilongjiang, 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
Star Electromechanical, Hegang, Heilongjiang, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
25th Aug 2021
77AQILowest AQI recorded on
12th Aug 2023
21AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 44 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Star Electromechanical, Hegang, Heilongjiang, China
AQI
Day
Night
.
5 AM2nd Aug 2025
9 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
4PM2nd Aug
47AQI
Avg. Lowest Time
10AM2nd Aug
35AQI
In the last 24 hours,
Star Electromechanical's AQI reached its highest point of 47 at 4 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Star Electromechanical, Hegang, Heilongjiang, China
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025575 AMAQI
4th Jul 2025576 AMAQI
4th Jul 2025577 AMAQI
4th Jul 2025508 AMAQI
4th Jul 2025409 AMAQI
4th Jul 20253510 AMAQI
4th Jul 20253411 AMAQI
4th Jul 20253412 PMAQI
4th Jul 2025371 PMAQI
4th Jul 2025382 PMAQI
4th Jul 2025353 PMAQI
4th Jul 2025394 PMAQI
4th Jul 2025425 PMAQI
4th Jul 2025636 PMAQI
4th Jul 2025677 PMAQI
4th Jul 2025648 PMAQI
4th Jul 2025679 PMAQI
4th Jul 20256410 PMAQI
4th Jul 20256411 PMAQI
5th Jul 20256212 AMAQI
5th Jul 2025571 AMAQI
5th Jul 2025572 AMAQI
5th Jul 2025563 AMAQI
5th Jul 2025554 AMAQI
27°C19/35°C
5th Jul 2025545 AMAQI
5th Jul 2025556 AMAQI
5th Jul 2025547 AMAQI
5th Jul 2025608 AMAQI
5th Jul 2025609 AMAQI
5th Jul 20255910 AMAQI
5th Jul 20255811 AMAQI
5th Jul 20256212 PMAQI
5th Jul 2025621 PMAQI
5th Jul 2025612 PMAQI
5th Jul 2025573 PMAQI
5th Jul 2025554 PMAQI
5th Jul 2025555 PMAQI
5th Jul 2025536 PMAQI
5th Jul 2025537 PMAQI
5th Jul 2025548 PMAQI
5th Jul 2025579 PMAQI
5th Jul 20255810 PMAQI
5th Jul 20255711 PMAQI
6th Jul 20255412 AMAQI
6th Jul 2025561 AMAQI
6th Jul 2025562 AMAQI
6th Jul 2025573 AMAQI
6th Jul 2025574 AMAQI
24°C21/30°C
6th Jul 2025575 AMAQI
6th Jul 2025586 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025518 AMAQI
6th Jul 2025439 AMAQI
6th Jul 20253810 AMAQI
6th Jul 20253311 AMAQI
6th Jul 20253512 PMAQI
6th Jul 2025361 PMAQI
6th Jul 2025472 PMAQI
6th Jul 2025573 PMAQI
6th Jul 2025534 PMAQI
6th Jul 2025595 PMAQI
6th Jul 2025636 PMAQI
6th Jul 2025647 PMAQI
6th Jul 2025618 PMAQI
6th Jul 2025649 PMAQI
6th Jul 20256210 PMAQI
6th Jul 20256011 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025561 AMAQI
7th Jul 2025572 AMAQI
7th Jul 2025553 AMAQI
7th Jul 2025544 AMAQI
24°C19/30°C
7th Jul 2025545 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025557 AMAQI
7th Jul 2025548 AMAQI
7th Jul 2025469 AMAQI
7th Jul 20254810 AMAQI
7th Jul 20255211 AMAQI
7th Jul 20255212 PMAQI
7th Jul 2025441 PMAQI
7th Jul 2025342 PMAQI
7th Jul 2025423 PMAQI
7th Jul 2025484 PMAQI
7th Jul 2025525 PMAQI
7th Jul 2025536 PMAQI
7th Jul 2025577 PMAQI
7th Jul 2025598 PMAQI
7th Jul 2025609 PMAQI
7th Jul 20256110 PMAQI
7th Jul 20256111 PMAQI
8th Jul 20255712 AMAQI
8th Jul 2025551 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025553 AMAQI
8th Jul 2025544 AMAQI
22°C16/28°C
8th Jul 2025545 AMAQI
8th Jul 2025546 AMAQI
8th Jul 2025547 AMAQI
8th Jul 2025548 AMAQI
8th Jul 2025479 AMAQI
8th Jul 20253010 AMAQI
8th Jul 20252811 AMAQI
8th Jul 20252712 PMAQI
8th Jul 2025311 PMAQI
8th Jul 2025312 PMAQI
8th Jul 2025293 PMAQI
8th Jul 2025294 PMAQI
8th Jul 2025335 PMAQI
8th Jul 2025436 PMAQI
8th Jul 2025507 PMAQI
8th Jul 2025568 PMAQI
8th Jul 2025619 PMAQI
8th Jul 20256410 PMAQI
8th Jul 20256311 PMAQI
9th Jul 20255812 AMAQI
9th Jul 2025551 AMAQI
9th Jul 2025552 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025534 AMAQI
22°C14/28°C
9th Jul 2025525 AMAQI
9th Jul 2025526 AMAQI
9th Jul 2025537 AMAQI
9th Jul 2025568 AMAQI
9th Jul 2025569 AMAQI
9th Jul 20255610 AMAQI
9th Jul 20254811 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025341 PMAQI
9th Jul 2025302 PMAQI
9th Jul 2025313 PMAQI
9th Jul 2025364 PMAQI
9th Jul 2025375 PMAQI
9th Jul 2025446 PMAQI
9th Jul 2025487 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025569 PMAQI
9th Jul 20255810 PMAQI
9th Jul 20255611 PMAQI
10th Jul 20255712 AMAQI
10th Jul 2025541 AMAQI
10th Jul 2025542 AMAQI
10th Jul 2025533 AMAQI
10th Jul 2025534 AMAQI
20°C16/24°C
10th Jul 2025535 AMAQI
10th Jul 2025536 AMAQI
10th Jul 2025537 AMAQI
10th Jul 2025528 AMAQI
10th Jul 2025429 AMAQI
10th Jul 20253210 AMAQI
10th Jul 20252611 AMAQI
10th Jul 20252112 PMAQI
10th Jul 2025281 PMAQI
10th Jul 2025392 PMAQI
10th Jul 2025423 PMAQI
10th Jul 2025434 PMAQI
10th Jul 2025505 PMAQI
10th Jul 2025526 PMAQI
10th Jul 2025557 PMAQI
10th Jul 2025588 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255510 PMAQI
10th Jul 20255411 PMAQI
11th Jul 20255412 AMAQI
11th Jul 2025541 AMAQI
11th Jul 2025542 AMAQI
11th Jul 2025533 AMAQI
11th Jul 2025524 AMAQI
20°C13/27°C
11th Jul 2025525 AMAQI
11th Jul 2025526 AMAQI
11th Jul 2025527 AMAQI
11th Jul 2025498 AMAQI
11th Jul 2025509 AMAQI
11th Jul 20254110 AMAQI
11th Jul 20254811 AMAQI
11th Jul 20254912 PMAQI
11th Jul 2025521 PMAQI
11th Jul 2025522 PMAQI
11th Jul 2025563 PMAQI
11th Jul 2025594 PMAQI
11th Jul 2025625 PMAQI
11th Jul 2025686 PMAQI
11th Jul 2025667 PMAQI
11th Jul 2025628 PMAQI
11th Jul 2025649 PMAQI
11th Jul 20256310 PMAQI
11th Jul 20256211 PMAQI
12th Jul 20256012 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025532 AMAQI
12th Jul 2025543 AMAQI
12th Jul 2025534 AMAQI
24°C16/32°C
12th Jul 2025535 AMAQI
12th Jul 2025536 AMAQI
12th Jul 2025537 AMAQI
12th Jul 2025608 AMAQI
12th Jul 2025599 AMAQI
12th Jul 20255810 AMAQI
12th Jul 20255111 AMAQI
12th Jul 20254812 PMAQI
12th Jul 2025501 PMAQI
12th Jul 2025522 PMAQI
12th Jul 2025523 PMAQI
12th Jul 2025524 PMAQI
12th Jul 2025525 PMAQI
12th Jul 2025516 PMAQI
12th Jul 2025607 PMAQI
12th Jul 2025578 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255910 PMAQI
12th Jul 20255711 PMAQI
13th Jul 20255712 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025543 AMAQI
13th Jul 2025544 AMAQI
27°C21/33°C
13th Jul 2025545 AMAQI
13th Jul 2025546 AMAQI
13th Jul 2025547 AMAQI
13th Jul 2025508 AMAQI
13th Jul 2025399 AMAQI
13th Jul 20253910 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20254012 PMAQI
13th Jul 2025561 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025573 PMAQI
13th Jul 2025534 PMAQI
13th Jul 2025535 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025537 PMAQI
13th Jul 2025568 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255810 PMAQI
13th Jul 20255411 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025541 AMAQI
14th Jul 2025552 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025534 AMAQI
23°C19/29°C
14th Jul 2025535 AMAQI
14th Jul 2025536 AMAQI
14th Jul 2025537 AMAQI
14th Jul 2025508 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20253210 AMAQI
14th Jul 20253011 AMAQI
14th Jul 20253212 PMAQI
14th Jul 2025301 PMAQI
14th Jul 2025312 PMAQI
14th Jul 2025513 PMAQI
14th Jul 2025564 PMAQI
14th Jul 2025535 PMAQI
14th Jul 2025386 PMAQI
14th Jul 2025487 PMAQI
14th Jul 2025568 PMAQI
14th Jul 2025579 PMAQI
14th Jul 20255810 PMAQI
14th Jul 20255711 PMAQI
15th Jul 20255612 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025532 AMAQI
15th Jul 2025523 AMAQI
15th Jul 2025524 AMAQI
23°C17/28°C
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025428 AMAQI
15th Jul 2025439 AMAQI
15th Jul 20253210 AMAQI
15th Jul 20252811 AMAQI
15th Jul 20252612 PMAQI
15th Jul 2025281 PMAQI
15th Jul 2025372 PMAQI
15th Jul 2025323 PMAQI
15th Jul 2025314 PMAQI
15th Jul 2025375 PMAQI
15th Jul 2025436 PMAQI
15th Jul 2025557 PMAQI
15th Jul 2025578 PMAQI
15th Jul 2025589 PMAQI
15th Jul 20255610 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255112 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025532 AMAQI
16th Jul 2025523 AMAQI
16th Jul 2025514 AMAQI
23°C17/29°C
16th Jul 2025515 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025388 AMAQI
16th Jul 2025409 AMAQI
16th Jul 20253610 AMAQI
16th Jul 20253811 AMAQI
16th Jul 20254012 PMAQI
16th Jul 2025321 PMAQI
16th Jul 2025322 PMAQI
16th Jul 2025373 PMAQI
16th Jul 2025324 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025386 PMAQI
16th Jul 2025387 PMAQI
16th Jul 2025408 PMAQI
16th Jul 2025429 PMAQI
16th Jul 20254310 PMAQI
16th Jul 20254411 PMAQI
17th Jul 20255112 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025503 AMAQI
17th Jul 2025494 AMAQI
20°C18/21°C
17th Jul 2025485 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025398 AMAQI
17th Jul 2025359 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20253511 AMAQI
17th Jul 20253112 PMAQI
17th Jul 2025341 PMAQI
17th Jul 2025382 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025274 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025437 PMAQI
17th Jul 2025468 PMAQI
17th Jul 2025509 PMAQI
17th Jul 20255010 PMAQI
17th Jul 20254711 PMAQI
18th Jul 20255112 AMAQI
18th Jul 2025511 AMAQI
18th Jul 2025512 AMAQI
18th Jul 2025503 AMAQI
18th Jul 2025494 AMAQI
22°C19/27°C
18th Jul 2025485 AMAQI
18th Jul 2025486 AMAQI
18th Jul 2025477 AMAQI
18th Jul 2025478 AMAQI
18th Jul 2025519 AMAQI
18th Jul 20254810 AMAQI
18th Jul 20254611 AMAQI
18th Jul 20255612 PMAQI
18th Jul 2025581 PMAQI
18th Jul 2025512 PMAQI
18th Jul 2025403 PMAQI
18th Jul 2025384 PMAQI
18th Jul 2025415 PMAQI
18th Jul 2025436 PMAQI
18th Jul 2025497 PMAQI
18th Jul 2025518 PMAQI
18th Jul 2025489 PMAQI
18th Jul 20254810 PMAQI
18th Jul 20254811 PMAQI
19th Jul 20254712 AMAQI
19th Jul 2025501 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025513 AMAQI
19th Jul 2025524 AMAQI
22°C19/26°C
19th Jul 2025525 AMAQI
19th Jul 2025526 AMAQI
19th Jul 2025517 AMAQI
19th Jul 2025498 AMAQI
19th Jul 2025489 AMAQI
19th Jul 20254210 AMAQI
19th Jul 20253711 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025281 PMAQI
19th Jul 2025282 PMAQI
19th Jul 2025243 PMAQI
19th Jul 2025254 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025476 PMAQI
19th Jul 2025527 PMAQI
19th Jul 2025538 PMAQI
19th Jul 2025519 PMAQI
19th Jul 20255110 PMAQI
19th Jul 20255011 PMAQI
20th Jul 20254812 AMAQI
20th Jul 2025511 AMAQI
20th Jul 2025512 AMAQI
20th Jul 2025503 AMAQI
20th Jul 2025484 AMAQI
25°C19/31°C
20th Jul 2025505 AMAQI
20th Jul 2025496 AMAQI
20th Jul 2025487 AMAQI
20th Jul 2025528 AMAQI
20th Jul 2025529 AMAQI
20th Jul 20254210 AMAQI
20th Jul 20253611 AMAQI
20th Jul 20254212 PMAQI
20th Jul 2025471 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025463 PMAQI
20th Jul 2025474 PMAQI
20th Jul 2025445 PMAQI
20th Jul 2025476 PMAQI
20th Jul 2025527 PMAQI
20th Jul 2025528 PMAQI
20th Jul 2025509 PMAQI
20th Jul 20254610 PMAQI
20th Jul 20254311 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025522 AMAQI
21st Jul 2025513 AMAQI
21st Jul 2025524 AMAQI
25°C21/32°C
21st Jul 2025515 AMAQI
21st Jul 2025516 AMAQI
21st Jul 2025517 AMAQI
21st Jul 2025328 AMAQI
21st Jul 2025359 AMAQI
21st Jul 20255010 AMAQI
21st Jul 20254811 AMAQI
21st Jul 20253812 PMAQI
21st Jul 2025281 PMAQI
21st Jul 2025222 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025254 PMAQI
21st Jul 2025395 PMAQI
21st Jul 2025516 PMAQI
21st Jul 2025537 PMAQI
21st Jul 2025518 PMAQI
21st Jul 2025499 PMAQI
21st Jul 20255110 PMAQI
21st Jul 20255011 PMAQI
22nd Jul 20254912 AMAQI
22nd Jul 2025501 AMAQI
22nd Jul 2025512 AMAQI
22nd Jul 2025493 AMAQI
22nd Jul 2025474 AMAQI
26°C20/32°C
22nd Jul 2025485 AMAQI
22nd Jul 2025466 AMAQI
22nd Jul 2025467 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025369 AMAQI
22nd Jul 20253110 AMAQI
22nd Jul 20253111 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025501 PMAQI
22nd Jul 2025462 PMAQI
22nd Jul 2025563 PMAQI
22nd Jul 2025564 PMAQI
22nd Jul 2025585 PMAQI
22nd Jul 2025646 PMAQI
22nd Jul 2025637 PMAQI
22nd Jul 2025608 PMAQI
22nd Jul 2025609 PMAQI
22nd Jul 20255710 PMAQI
22nd Jul 20255811 PMAQI
23rd Jul 20255312 AMAQI
23rd Jul 2025501 AMAQI
23rd Jul 2025502 AMAQI
23rd Jul 2025483 AMAQI
23rd Jul 2025484 AMAQI
29°C22/36°C
23rd Jul 2025475 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025477 AMAQI
23rd Jul 2025638 AMAQI
23rd Jul 2025659 AMAQI
23rd Jul 20255610 AMAQI
23rd Jul 20255011 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025351 PMAQI
23rd Jul 2025292 PMAQI
23rd Jul 2025343 PMAQI
23rd Jul 2025454 PMAQI
23rd Jul 2025565 PMAQI
23rd Jul 2025626 PMAQI
23rd Jul 2025637 PMAQI
23rd Jul 2025608 PMAQI
23rd Jul 2025599 PMAQI
23rd Jul 20255610 PMAQI
23rd Jul 20255211 PMAQI
24th Jul 20255212 AMAQI
24th Jul 2025521 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025513 AMAQI
24th Jul 2025524 AMAQI
29°C22/36°C
24th Jul 2025525 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025399 AMAQI
24th Jul 20253910 AMAQI
24th Jul 20253811 AMAQI
24th Jul 20254012 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025372 PMAQI
24th Jul 2025363 PMAQI
24th Jul 2025304 PMAQI
24th Jul 2025385 PMAQI
24th Jul 2025516 PMAQI
24th Jul 2025577 PMAQI
24th Jul 2025608 PMAQI
24th Jul 2025599 PMAQI
24th Jul 20256010 PMAQI
24th Jul 20256011 PMAQI
25th Jul 20255512 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025532 AMAQI
25th Jul 2025523 AMAQI
25th Jul 2025524 AMAQI
28°C22/35°C
25th Jul 2025525 AMAQI
25th Jul 2025526 AMAQI
25th Jul 2025527 AMAQI
25th Jul 2025568 AMAQI
25th Jul 2025549 AMAQI
25th Jul 20255510 AMAQI
25th Jul 20255611 AMAQI
25th Jul 20255612 PMAQI
25th Jul 2025461 PMAQI
25th Jul 2025352 PMAQI
25th Jul 2025363 PMAQI
25th Jul 2025304 PMAQI
25th Jul 2025325 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025538 PMAQI
25th Jul 2025519 PMAQI
25th Jul 20255310 PMAQI
25th Jul 20255411 PMAQI
26th Jul 20255312 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025533 AMAQI
26th Jul 2025534 AMAQI
27°C22/33°C
26th Jul 2025535 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025537 AMAQI
26th Jul 2025468 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20254010 AMAQI
26th Jul 20253911 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025262 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025394 PMAQI
26th Jul 2025445 PMAQI
26th Jul 2025456 PMAQI
26th Jul 2025517 PMAQI
26th Jul 2025538 PMAQI
26th Jul 2025549 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20255112 AMAQI
27th Jul 2025521 AMAQI
27th Jul 2025532 AMAQI
27th Jul 2025523 AMAQI
27th Jul 2025524 AMAQI
27°C21/34°C
27th Jul 2025525 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025458 AMAQI
27th Jul 2025359 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20255211 AMAQI
27th Jul 20255112 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025402 PMAQI
27th Jul 2025413 PMAQI
27th Jul 2025474 PMAQI
27th Jul 2025405 PMAQI
27th Jul 2025396 PMAQI
27th Jul 2025417 PMAQI
27th Jul 2025528 PMAQI
27th Jul 2025499 PMAQI
27th Jul 20254510 PMAQI
27th Jul 20254311 PMAQI
28th Jul 20254412 AMAQI
28th Jul 2025511 AMAQI
28th Jul 2025522 AMAQI
28th Jul 2025523 AMAQI
28th Jul 2025524 AMAQI
26°C22/32°C
28th Jul 2025525 AMAQI
28th Jul 2025526 AMAQI
28th Jul 2025527 AMAQI
28th Jul 2025448 AMAQI
28th Jul 2025349 AMAQI
28th Jul 20253410 AMAQI
28th Jul 20255011 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025381 PMAQI
28th Jul 2025292 PMAQI
28th Jul 2025283 PMAQI
28th Jul 2025294 PMAQI
28th Jul 2025305 PMAQI
28th Jul 2025426 PMAQI
28th Jul 2025437 PMAQI
28th Jul 2025498 PMAQI
28th Jul 2025539 PMAQI
28th Jul 20255410 PMAQI
28th Jul 20255411 PMAQI
29th Jul 20255112 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025512 AMAQI
29th Jul 2025503 AMAQI
29th Jul 2025484 AMAQI
25°C19/32°C
29th Jul 2025475 AMAQI
29th Jul 2025486 AMAQI
29th Jul 2025477 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025269 AMAQI
29th Jul 20252810 AMAQI
29th Jul 20253811 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025281 PMAQI
29th Jul 2025292 PMAQI
29th Jul 2025313 PMAQI
29th Jul 2025304 PMAQI
29th Jul 2025265 PMAQI
29th Jul 2025316 PMAQI
29th Jul 2025487 PMAQI
29th Jul 2025428 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20254610 PMAQI
29th Jul 20255011 PMAQI
30th Jul 20254612 AMAQI
30th Jul 2025501 AMAQI
30th Jul 2025502 AMAQI
30th Jul 2025473 AMAQI
30th Jul 2025464 AMAQI
24°C16/33°C
30th Jul 2025465 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025467 AMAQI
30th Jul 2025398 AMAQI
30th Jul 2025349 AMAQI
30th Jul 20253510 AMAQI
30th Jul 20253511 AMAQI
30th Jul 20253612 PMAQI
30th Jul 2025341 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025373 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025345 PMAQI
30th Jul 2025526 PMAQI
30th Jul 2025547 PMAQI
30th Jul 2025498 PMAQI
30th Jul 2025489 PMAQI
30th Jul 20254510 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254212 AMAQI
31st Jul 2025481 AMAQI
31st Jul 2025492 AMAQI
31st Jul 2025483 AMAQI
31st Jul 2025494 AMAQI
24°C19/30°C
31st Jul 2025495 AMAQI
31st Jul 2025496 AMAQI
31st Jul 2025497 AMAQI
31st Jul 2025498 AMAQI
31st Jul 2025499 AMAQI
31st Jul 20252910 AMAQI
31st Jul 20252311 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025241 PMAQI
31st Jul 2025262 PMAQI
31st Jul 2025353 PMAQI
31st Jul 2025374 PMAQI
31st Jul 2025355 PMAQI
31st Jul 2025486 PMAQI
31st Jul 2025407 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025559 PMAQI
31st Jul 20255210 PMAQI
31st Jul 20254911 PMAQI
1st Aug 20254712 AMAQI
1st Aug 2025481 AMAQI
1st Aug 2025502 AMAQI
1st Aug 2025463 AMAQI
1st Aug 2025444 AMAQI
24°C17/30°C
1st Aug 2025445 AMAQI
1st Aug 2025476 AMAQI
1st Aug 2025467 AMAQI
1st Aug 2025428 AMAQI
1st Aug 2025399 AMAQI
1st Aug 20253110 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20253412 PMAQI
1st Aug 2025411 PMAQI
1st Aug 2025432 PMAQI
1st Aug 2025403 PMAQI
1st Aug 2025544 PMAQI
1st Aug 2025505 PMAQI
1st Aug 2025386 PMAQI
1st Aug 2025437 PMAQI
1st Aug 2025488 PMAQI
1st Aug 2025489 PMAQI
1st Aug 20254610 PMAQI
1st Aug 20255211 PMAQI
2nd Aug 20255212 AMAQI
2nd Aug 2025471 AMAQI
2nd Aug 2025462 AMAQI
2nd Aug 2025433 AMAQI
2nd Aug 2025444 AMAQI
25°C17/32°C
2nd Aug 2025425 AMAQI
2nd Aug 2025446 AMAQI
2nd Aug 2025437 AMAQI
2nd Aug 2025358 AMAQI
2nd Aug 2025389 AMAQI
2nd Aug 20253510 AMAQI
2nd Aug 20253711 AMAQI
2nd Aug 20254212 PMAQI
2nd Aug 2025401 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025423 PMAQI
2nd Aug 2025474 PMAQI
2nd Aug 2025405 PMAQI
2nd Aug 2025466 PMAQI
2nd Aug 2025447 PMAQI
2nd Aug 2025458 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20254510 PMAQI
2nd Aug 20254211 PMAQI
3rd Aug 20254412 AMAQI
3rd Aug 2025451 AMAQI
3rd Aug 2025462 AMAQI
3rd Aug 2025453 AMAQI
--°C/°C
5 AM
1 PM
9 PM
1 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
7 PM - 9 PM
53AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
10 AM - 2 PM
40AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 9 PM (Avg. 53), while the lowest AQI was between 10 AM to 2 PM (Avg. 40).
Night time
Avg. Highest Time
10 PM - 11 PM
54AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 4 AM
52AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 54), while the lowest AQI was between 12 AM to 4 AM (Avg. 52).
2025 Days Vs Air Quality
Star Electromechanical, Hegang, Heilongjiang, China
2025
14%
30
70%
149
16%
35
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
30 DaysModerate
149 DaysPoor
35 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2025, 14% of 214 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
Star Electromechanical, Hegang, Heilongjiang, China
AQI levels in 2025
AQI
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.
1st January 2025
107AQI
107AQI
2nd January 2025
119AQI
119AQI
3rd January 2025
113AQI
113AQI
4th January 2025
127AQI
127AQI
5th January 2025
114AQI
114AQI
6th January 2025
112AQI
112AQI
7th January 2025
109AQI
109AQI
8th January 2025
91AQI
91AQI
9th January 2025
93AQI
93AQI
10th January 2025
80AQI
80AQI
11th January 2025
100AQI
100AQI
12th January 2025
117AQI
117AQI
13th January 2025
149AQI
149AQI
14th January 2025
137AQI
137AQI
15th January 2025
130AQI
130AQI
16th January 2025
106AQI
106AQI
17th January 2025
134AQI
134AQI
18th January 2025
123AQI
123AQI
19th January 2025
136AQI
136AQI
20th January 2025
114AQI
114AQI
21st January 2025
119AQI
119AQI
22nd January 2025
120AQI
120AQI
23rd January 2025
116AQI
116AQI
24th January 2025
126AQI
126AQI
25th January 2025
134AQI
134AQI
26th January 2025
137AQI
137AQI
27th January 2025
102AQI
102AQI
28th January 2025
104AQI
104AQI
29th January 2025
86AQI
86AQI
30th January 2025
80AQI
80AQI
31st January 2025
98AQI
98AQI
1st February 2025
106AQI
106AQI
2nd February 2025
120AQI
120AQI
3rd February 2025
109AQI
109AQI
4th February 2025
87AQI
87AQI
5th February 2025
75AQI
75AQI
6th February 2025
63AQI
63AQI
7th February 2025
67AQI
67AQI
8th February 2025
71AQI
71AQI
9th February 2025
71AQI
71AQI
10th February 2025
68AQI
68AQI
11th February 2025
104AQI
104AQI
12th February 2025
91AQI
91AQI
13th February 2025
89AQI
89AQI
14th February 2025
77AQI
77AQI
15th February 2025
85AQI
85AQI
16th February 2025
64AQI
64AQI
17th February 2025
63AQI
63AQI
18th February 2025
67AQI
67AQI
19th February 2025
65AQI
65AQI
20th February 2025
66AQI
66AQI
21st February 2025
66AQI
66AQI
22nd February 2025
55AQI
55AQI
23rd February 2025
58AQI
58AQI
24th February 2025
64AQI
64AQI
25th February 2025
92AQI
92AQI
26th February 2025
66AQI
66AQI
27th February 2025
85AQI
85AQI
28th February 2025
84AQI
84AQI
1st March 2025
60AQI
60AQI
2nd March 2025
61AQI
61AQI
3rd March 2025
55AQI
55AQI
4th March 2025
68AQI
68AQI
5th March 2025
81AQI
81AQI
6th March 2025
81AQI
81AQI
7th March 2025
76AQI
76AQI
8th March 2025
68AQI
68AQI
9th March 2025
85AQI
85AQI
10th March 2025
112AQI
112AQI
11th March 2025
73AQI
73AQI
12th March 2025
85AQI
85AQI
13th March 2025
67AQI
67AQI
14th March 2025
64AQI
64AQI
15th March 2025
58AQI
58AQI
16th March 2025
61AQI
61AQI
17th March 2025
58AQI
58AQI
18th March 2025
61AQI
61AQI
19th March 2025
69AQI
69AQI
20th March 2025
114AQI
114AQI
21st March 2025
62AQI
62AQI
22nd March 2025
71AQI
71AQI
23rd March 2025
51AQI
51AQI
24th March 2025
63AQI
63AQI
25th March 2025
60AQI
60AQI
26th March 2025
57AQI
57AQI
27th March 2025
56AQI
56AQI
28th March 2025
50AQI
50AQI
29th March 2025
57AQI
57AQI
30th March 2025
52AQI
52AQI
31st March 2025
79AQI
79AQI
1st April 2025
97AQI
97AQI
2nd April 2025
96AQI
96AQI
3rd April 2025
105AQI
105AQI
4th April 2025
100AQI
100AQI
5th April 2025
90AQI
90AQI
6th April 2025
89AQI
89AQI
7th April 2025
81AQI
81AQI
8th April 2025
78AQI
78AQI
9th April 2025
81AQI
81AQI
10th April 2025
98AQI
98AQI
11th April 2025
76AQI
76AQI
12th April 2025
109AQI
109AQI
13th April 2025
74AQI
74AQI
14th April 2025
73AQI
73AQI
15th April 2025
56AQI
56AQI
16th April 2025
53AQI
53AQI
17th April 2025
96AQI
96AQI
18th April 2025
82AQI
82AQI
19th April 2025
77AQI
77AQI
20th April 2025
59AQI
59AQI
21st April 2025
82AQI
82AQI
22nd April 2025
64AQI
64AQI
23rd April 2025
69AQI
69AQI
24th April 2025
70AQI
70AQI
25th April 2025
68AQI
68AQI
26th April 2025
53AQI
53AQI
27th April 2025
60AQI
60AQI
28th April 2025
54AQI
54AQI
29th April 2025
60AQI
60AQI
30th April 2025
71AQI
71AQI
1st May 2025
80AQI
80AQI
2nd May 2025
67AQI
67AQI
3rd May 2025
50AQI
50AQI
4th May 2025
47AQI
47AQI
5th May 2025
46AQI
46AQI
6th May 2025
50AQI
50AQI
7th May 2025
57AQI
57AQI
8th May 2025
58AQI
58AQI
9th May 2025
62AQI
62AQI
10th May 2025
59AQI
59AQI
11th May 2025
68AQI
68AQI
12th May 2025
112AQI
112AQI
13th May 2025
114AQI
114AQI
14th May 2025
109AQI
109AQI
15th May 2025
91AQI
91AQI
16th May 2025
81AQI
81AQI
17th May 2025
71AQI
71AQI
18th May 2025
63AQI
63AQI
19th May 2025
62AQI
62AQI
20th May 2025
66AQI
66AQI
21st May 2025
52AQI
52AQI
22nd May 2025
58AQI
58AQI
23rd May 2025
56AQI
56AQI
24th May 2025
56AQI
56AQI
25th May 2025
47AQI
47AQI
26th May 2025
55AQI
55AQI
27th May 2025
58AQI
58AQI
28th May 2025
69AQI
69AQI
29th May 2025
73AQI
73AQI
30th May 2025
74AQI
74AQI
31st May 2025
82AQI
82AQI
1st June 2025
69AQI
69AQI
2nd June 2025
65AQI
65AQI
3rd June 2025
58AQI
58AQI
4th June 2025
52AQI
52AQI
5th June 2025
60AQI
60AQI
6th June 2025
53AQI
53AQI
7th June 2025
55AQI
55AQI
8th June 2025
57AQI
57AQI
9th June 2025
57AQI
57AQI
10th June 2025
57AQI
57AQI
11th June 2025
52AQI
52AQI
12th June 2025
52AQI
52AQI
13th June 2025
59AQI
59AQI
14th June 2025
58AQI
58AQI
15th June 2025
51AQI
51AQI
16th June 2025
55AQI
55AQI
17th June 2025
54AQI
54AQI
18th June 2025
54AQI
54AQI
19th June 2025
56AQI
56AQI
20th June 2025
57AQI
57AQI
21st June 2025
49AQI
49AQI
22nd June 2025
48AQI
48AQI
23rd June 2025
52AQI
52AQI
24th June 2025
53AQI
53AQI
25th June 2025
59AQI
59AQI
26th June 2025
57AQI
57AQI
27th June 2025
58AQI
58AQI
28th June 2025
60AQI
60AQI
29th June 2025
60AQI
60AQI
30th June 2025
57AQI
57AQI
1st July 2025
58AQI
58AQI
2nd July 2025
56AQI
56AQI
3rd July 2025
60AQI
60AQI
4th July 2025
53AQI
53AQI
5th July 2025
57AQI
57AQI
6th July 2025
55AQI
55AQI
7th July 2025
54AQI
54AQI
8th July 2025
48AQI
48AQI
9th July 2025
49AQI
49AQI
10th July 2025
49AQI
49AQI
11th July 2025
56AQI
56AQI
12th July 2025
55AQI
55AQI
13th July 2025
52AQI
52AQI
14th July 2025
49AQI
49AQI
15th July 2025
47AQI
47AQI
16th July 2025
43AQI
43AQI
17th July 2025
43AQI
43AQI
18th July 2025
48AQI
48AQI
19th July 2025
45AQI
45AQI
20th July 2025
48AQI
48AQI
21st July 2025
45AQI
45AQI
22nd July 2025
50AQI
50AQI
23rd July 2025
51AQI
51AQI
24th July 2025
49AQI
49AQI
25th July 2025
50AQI
50AQI
26th July 2025
47AQI
47AQI
27th July 2025
47AQI
47AQI
28th July 2025
45AQI
45AQI
29th July 2025
41AQI
41AQI
30th July 2025
43AQI
43AQI
31st July 2025
43AQI
43AQI
1st August 2025
45AQI
45AQI
2nd August 2025
44AQI
44AQI
114AQI
78AQI
68AQI
77AQI
68AQI
56AQI
50AQI
45AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202573AQI
7
24
24
4
1
28
2
28
2
5
23
3
2
28
20
11
2
30
149
35
Highest AQI recorded in
January114AQI
Lowest AQI recorded in
August45AQI
202471AQI
22
7
2
23
6
1
28
1
1
18
11
1
13
16
2
25
5
11
11
9
27
4
6
24
27
4
1
22
6
1
30
1
84
230
45
7
Highest AQI recorded in
April90AQI
Lowest AQI recorded in
June41AQI
202364AQI
22
8
1
23
5
2
23
4
2
2
20
6
2
11
19
1
23
7
29
2
30
1
23
7
6
22
3
2
26
1
2
21
8
130
193
36
5
Highest AQI recorded in
January87AQI
Lowest AQI recorded in
August37AQI
202262AQI
26
5
19
3
2
27
2
9
19
1
1
12
19
24
6
22
2
1
27
2
17
10
4
2
21
7
4
27
120
178
21
1
1
Highest AQI recorded in
February82AQI
Lowest AQI recorded in
July32AQI
202171AQI
19
11
1
21
7
25
6
3
19
7
1
5
26
5
25
15
16
20
10
18
12
4
24
3
3
22
5
1
23
7
74
242
46
1
1
Highest AQI recorded in
January97AQI
Lowest AQI recorded in
August46AQI
202068AQI
8
5
16
1
2
2
18
6
24
11
20
15
16
2
28
5
26
4
24
2
25
6
43
205
14
2
2
Highest AQI recorded in
April96AQI
Lowest AQI recorded in
August53AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
73AQILeast Polluted Year Recorded
2022(Avg.)
62AQIStar Electromechanical's annual 2025 AQI (73) shows an average percentage change of 8.3% (worsened AQI) compared to previous years: 2020 (68), 2021 (71), 2022 (62), 2023 (64), 2024 (71).
