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HistoryAQIPM2.5PM10COSO2NO2O3

Analyse Historique de la Qualité de l'Air à Railway Design Institute, Lanzhou, Gansu, China

Plongez dans des détails sur la qualité de l'air avec des données historiques, des tendances mensuelles et annuelles à portée de main !

Bon
050
Modéré
100
Pauvre
150
Non sain
200
Sévère
300
Dangereux
301+

Analyse de la qualité de l'air de Août

Railway Design Institute, Lanzhou, Gansu, China

2021
2022
2023
2024
2025
AQI
.
Jours

Tendances AQI : Le plus élevé et le plus bas

AQI le plus élevé enregistré le
16th Aug 2023
171AQI
AQI le plus bas enregistré le
8th Aug 2023
49AQI

Analyse du même jour (1st August ):
Ce jour-là, l'AQI au cours des 5 années a varié de manière significative : 2025 se classe 3rd le plus élevé AQI à 64 de Modéré qualité de l'air, montrant une amélioration par rapport à 2024 et 2021 le même jour.

Télécharger les données annuelles 2024

Rapport mondial sur la qualité de l'air

Globe

Tendance AQI Jour & Nuit : 2nd Aug - 3rd Aug 2025

Railway Design Institute, Lanzhou, Gansu, China

AQI
Jour
Nuit
.

6 AM2nd Aug 2025

8 PM

5 AM3rd Aug 2025

Heure du jour
Heure moyenne la plus haute
12AMNaNth undefined

AQI

Heure moyenne la plus basse
12AMNaNth undefined

AQI

Heure de la nuit
Heure moyenne la plus haute
12PM2nd Aug

78AQI

Heure moyenne la plus basse
1AM3rd Aug

59AQI

Au cours des 24 dernières heures,

L'AQI de Railway Design Institute a atteint son point le plus élevé de 78 à 12 PM pendant le Nuit, tandis que le point le plus bas, undefined, a été enregistré à 5 AM pendant le Nuit entre 2nd Aug et 3rd Aug 2025.

Tendance AQI Jour & Nuit : Jul - Aug 2025

Railway Design Institute, Lanzhou, Gansu, 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
Jour
Nuit
4th Jul 2025656 AMAQI
4th Jul 2025657 AMAQI
4th Jul 2025758 AMAQI
4th Jul 2025679 AMAQI
4th Jul 20256610 AMAQI
4th Jul 20256011 AMAQI
4th Jul 20256612 PMAQI
4th Jul 2025561 PMAQI
4th Jul 2025562 PMAQI
4th Jul 2025603 PMAQI
4th Jul 2025574 PMAQI
4th Jul 2025535 PMAQI
4th Jul 2025576 PMAQI
4th Jul 2025577 PMAQI
4th Jul 2025628 PMAQI
4th Jul 2025629 PMAQI
4th Jul 20256210 PMAQI
4th Jul 20256211 PMAQI
5th Jul 20256212 AMAQI
5th Jul 2025631 AMAQI
5th Jul 2025632 AMAQI
5th Jul 2025643 AMAQI
5th Jul 2025634 AMAQI
5th Jul 2025625 AMAQI

15°C12/17°C

5th Jul 2025626 AMAQI
5th Jul 2025637 AMAQI
5th Jul 2025708 AMAQI
5th Jul 2025659 AMAQI
5th Jul 20256810 AMAQI
5th Jul 20256711 AMAQI
5th Jul 20256212 PMAQI
5th Jul 2025571 PMAQI
5th Jul 2025582 PMAQI
5th Jul 2025593 PMAQI
5th Jul 2025604 PMAQI
5th Jul 2025585 PMAQI
5th Jul 2025566 PMAQI
5th Jul 2025567 PMAQI
5th Jul 2025618 PMAQI
5th Jul 2025609 PMAQI
5th Jul 20256010 PMAQI
5th Jul 20256011 PMAQI
6th Jul 20256012 AMAQI
6th Jul 2025621 AMAQI
6th Jul 2025622 AMAQI
6th Jul 2025613 AMAQI
6th Jul 2025604 AMAQI
6th Jul 2025605 AMAQI

20°C13/26°C

6th Jul 2025616 AMAQI
6th Jul 2025617 AMAQI
6th Jul 2025628 AMAQI
6th Jul 2025629 AMAQI
6th Jul 20256210 AMAQI
6th Jul 20256111 AMAQI
6th Jul 20256012 PMAQI
6th Jul 2025581 PMAQI
6th Jul 2025562 PMAQI
6th Jul 2025523 PMAQI
6th Jul 2025554 PMAQI
6th Jul 2025545 PMAQI
6th Jul 2025546 PMAQI
6th Jul 2025537 PMAQI
6th Jul 2025588 PMAQI
6th Jul 2025609 PMAQI
6th Jul 20256010 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025601 AMAQI
7th Jul 2025602 AMAQI
7th Jul 2025593 AMAQI
7th Jul 2025604 AMAQI
7th Jul 2025595 AMAQI

21°C18/26°C

7th Jul 2025596 AMAQI
7th Jul 2025607 AMAQI
7th Jul 2025648 AMAQI
7th Jul 2025609 AMAQI
7th Jul 20257410 AMAQI
7th Jul 20257011 AMAQI
7th Jul 20256812 PMAQI
7th Jul 2025681 PMAQI
7th Jul 2025672 PMAQI
7th Jul 2025683 PMAQI
7th Jul 2025604 PMAQI
7th Jul 2025585 PMAQI
7th Jul 2025626 PMAQI
7th Jul 2025627 PMAQI
7th Jul 2025598 PMAQI
7th Jul 2025609 PMAQI
7th Jul 20256010 PMAQI
7th Jul 20256011 PMAQI
8th Jul 20256012 AMAQI
8th Jul 2025591 AMAQI
8th Jul 2025582 AMAQI
8th Jul 2025583 AMAQI
8th Jul 2025584 AMAQI
8th Jul 2025585 AMAQI

23°C15/32°C

8th Jul 2025586 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025648 AMAQI
8th Jul 2025609 AMAQI
8th Jul 20256710 AMAQI
8th Jul 20256611 AMAQI
8th Jul 20256212 PMAQI
8th Jul 2025621 PMAQI
8th Jul 2025602 PMAQI
8th Jul 2025623 PMAQI
8th Jul 2025624 PMAQI
8th Jul 2025615 PMAQI
8th Jul 2025626 PMAQI
8th Jul 2025627 PMAQI
8th Jul 2025668 PMAQI
8th Jul 2025599 PMAQI
8th Jul 20256010 PMAQI
8th Jul 20256011 PMAQI
9th Jul 20255912 AMAQI
9th Jul 2025581 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025593 AMAQI
9th Jul 2025594 AMAQI
9th Jul 2025595 AMAQI

19°C16/20°C

9th Jul 2025606 AMAQI
9th Jul 2025607 AMAQI
9th Jul 2025738 AMAQI
9th Jul 2025759 AMAQI
9th Jul 20257810 AMAQI
9th Jul 20257811 AMAQI
9th Jul 20257212 PMAQI
9th Jul 2025681 PMAQI
9th Jul 2025702 PMAQI
9th Jul 2025683 PMAQI
9th Jul 2025744 PMAQI
9th Jul 2025725 PMAQI
9th Jul 2025706 PMAQI
9th Jul 2025667 PMAQI
9th Jul 2025598 PMAQI
9th Jul 2025599 PMAQI
9th Jul 20256010 PMAQI
9th Jul 20255911 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025592 AMAQI
10th Jul 2025593 AMAQI
10th Jul 2025604 AMAQI
10th Jul 2025605 AMAQI

22°C15/29°C

10th Jul 2025606 AMAQI
10th Jul 2025607 AMAQI
10th Jul 2025718 AMAQI
10th Jul 2025819 AMAQI
10th Jul 20257310 AMAQI
10th Jul 20257211 AMAQI
10th Jul 20256812 PMAQI
10th Jul 2025661 PMAQI
10th Jul 2025652 PMAQI
10th Jul 2025623 PMAQI
10th Jul 2025584 PMAQI
10th Jul 2025555 PMAQI
10th Jul 2025556 PMAQI
10th Jul 2025617 PMAQI
10th Jul 2025608 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20256010 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256312 AMAQI
11th Jul 2025601 AMAQI
11th Jul 2025602 AMAQI
11th Jul 2025603 AMAQI
11th Jul 2025604 AMAQI
11th Jul 2025625 AMAQI

26°C20/32°C

11th Jul 2025616 AMAQI
11th Jul 2025607 AMAQI
11th Jul 2025688 AMAQI
11th Jul 2025729 AMAQI
11th Jul 20256610 AMAQI
11th Jul 20256611 AMAQI
11th Jul 20256412 PMAQI
11th Jul 2025641 PMAQI
11th Jul 2025622 PMAQI
11th Jul 2025603 PMAQI
11th Jul 2025624 PMAQI
11th Jul 2025605 PMAQI
11th Jul 2025626 PMAQI
11th Jul 2025607 PMAQI
11th Jul 2025628 PMAQI
11th Jul 2025629 PMAQI
11th Jul 20256210 PMAQI
11th Jul 20256411 PMAQI
12th Jul 20256212 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025612 AMAQI
12th Jul 2025623 AMAQI
12th Jul 2025634 AMAQI
12th Jul 2025635 AMAQI

26°C21/33°C

12th Jul 2025636 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025658 AMAQI
12th Jul 2025689 AMAQI
12th Jul 20256910 AMAQI
12th Jul 20256811 AMAQI
12th Jul 20256412 PMAQI
12th Jul 2025621 PMAQI
12th Jul 2025652 PMAQI
12th Jul 2025643 PMAQI
12th Jul 2025644 PMAQI
12th Jul 2025645 PMAQI
12th Jul 2025646 PMAQI
12th Jul 2025647 PMAQI
12th Jul 2025638 PMAQI
12th Jul 2025649 PMAQI
12th Jul 20256310 PMAQI
12th Jul 20256511 PMAQI
13th Jul 20256312 AMAQI
13th Jul 2025631 AMAQI
13th Jul 2025632 AMAQI
13th Jul 2025623 AMAQI
13th Jul 2025624 AMAQI
13th Jul 2025625 AMAQI

25°C19/32°C

13th Jul 2025626 AMAQI
13th Jul 2025627 AMAQI
13th Jul 2025738 AMAQI
13th Jul 2025819 AMAQI
13th Jul 20258210 AMAQI
13th Jul 20257411 AMAQI
13th Jul 20256612 PMAQI
13th Jul 2025701 PMAQI
13th Jul 2025692 PMAQI
13th Jul 2025673 PMAQI
13th Jul 2025704 PMAQI
13th Jul 2025705 PMAQI
13th Jul 2025716 PMAQI
13th Jul 2025647 PMAQI
13th Jul 2025638 PMAQI
13th Jul 2025649 PMAQI
13th Jul 20256410 PMAQI
13th Jul 20256411 PMAQI
14th Jul 20256412 AMAQI
14th Jul 2025621 AMAQI
14th Jul 2025632 AMAQI
14th Jul 2025643 AMAQI
14th Jul 2025634 AMAQI
14th Jul 2025635 AMAQI

25°C19/32°C

14th Jul 2025646 AMAQI
14th Jul 2025637 AMAQI
14th Jul 2025718 AMAQI
14th Jul 2025779 AMAQI
14th Jul 20258010 AMAQI
14th Jul 20258111 AMAQI
14th Jul 20257412 PMAQI
14th Jul 2025721 PMAQI
14th Jul 2025722 PMAQI
14th Jul 2025703 PMAQI
14th Jul 2025704 PMAQI
14th Jul 2025685 PMAQI
14th Jul 2025706 PMAQI
14th Jul 2025687 PMAQI
14th Jul 2025678 PMAQI
14th Jul 2025669 PMAQI
14th Jul 20256610 PMAQI
14th Jul 20256711 PMAQI
15th Jul 20256612 AMAQI
15th Jul 2025651 AMAQI
15th Jul 2025642 AMAQI
15th Jul 2025653 AMAQI
15th Jul 2025664 AMAQI
15th Jul 2025655 AMAQI

26°C20/33°C

15th Jul 2025666 AMAQI
15th Jul 2025657 AMAQI
15th Jul 2025798 AMAQI
15th Jul 2025869 AMAQI
15th Jul 20258410 AMAQI
15th Jul 20257811 AMAQI
15th Jul 20257512 PMAQI
15th Jul 2025751 PMAQI
15th Jul 2025722 PMAQI
15th Jul 2025763 PMAQI
15th Jul 2025744 PMAQI
15th Jul 2025705 PMAQI
15th Jul 2025736 PMAQI
15th Jul 2025717 PMAQI
15th Jul 2025648 PMAQI
15th Jul 2025649 PMAQI
15th Jul 20256510 PMAQI
15th Jul 20256811 PMAQI
16th Jul 20256712 AMAQI
16th Jul 2025651 AMAQI
16th Jul 2025662 AMAQI
16th Jul 2025653 AMAQI
16th Jul 2025654 AMAQI
16th Jul 2025655 AMAQI

29°C21/34°C

16th Jul 2025656 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025848 AMAQI
16th Jul 2025869 AMAQI
16th Jul 20258910 AMAQI
16th Jul 20258811 AMAQI
16th Jul 20258212 PMAQI
16th Jul 2025801 PMAQI
16th Jul 2025782 PMAQI
16th Jul 2025713 PMAQI
16th Jul 2025664 PMAQI
16th Jul 2025675 PMAQI
16th Jul 2025646 PMAQI
16th Jul 2025627 PMAQI
16th Jul 2025648 PMAQI
16th Jul 2025669 PMAQI
16th Jul 20256710 PMAQI
16th Jul 20256611 PMAQI
17th Jul 20256612 AMAQI
17th Jul 2025661 AMAQI
17th Jul 2025662 AMAQI
17th Jul 2025663 AMAQI
17th Jul 2025684 AMAQI
17th Jul 2025685 AMAQI

28°C22/34°C

17th Jul 2025676 AMAQI
17th Jul 2025687 AMAQI
17th Jul 2025708 AMAQI
17th Jul 2025669 AMAQI
17th Jul 20258010 AMAQI
17th Jul 20257011 AMAQI
17th Jul 20256512 PMAQI
17th Jul 2025661 PMAQI
17th Jul 2025662 PMAQI
17th Jul 2025673 PMAQI
17th Jul 2025674 PMAQI
17th Jul 2025645 PMAQI
17th Jul 2025646 PMAQI
17th Jul 2025657 PMAQI
17th Jul 2025658 PMAQI
17th Jul 2025669 PMAQI
17th Jul 20256610 PMAQI
17th Jul 20256511 PMAQI
18th Jul 20256612 AMAQI
18th Jul 2025661 AMAQI
18th Jul 2025662 AMAQI
18th Jul 2025663 AMAQI
18th Jul 2025664 AMAQI
18th Jul 2025665 AMAQI

26°C20/34°C

18th Jul 2025666 AMAQI
18th Jul 2025667 AMAQI
18th Jul 2025658 AMAQI
18th Jul 2025659 AMAQI
18th Jul 20257110 AMAQI
18th Jul 20257511 AMAQI
18th Jul 20257012 PMAQI
18th Jul 2025681 PMAQI
18th Jul 2025672 PMAQI
18th Jul 2025693 PMAQI
18th Jul 2025734 PMAQI
18th Jul 2025705 PMAQI
18th Jul 2025706 PMAQI
18th Jul 2025687 PMAQI
18th Jul 2025668 PMAQI
18th Jul 2025699 PMAQI
18th Jul 20256910 PMAQI
18th Jul 20256811 PMAQI
19th Jul 20256712 AMAQI
19th Jul 2025651 AMAQI
19th Jul 2025662 AMAQI
19th Jul 2025663 AMAQI
19th Jul 2025664 AMAQI
19th Jul 2025665 AMAQI

24°C20/32°C

19th Jul 2025666 AMAQI
19th Jul 2025667 AMAQI
19th Jul 2025888 AMAQI
19th Jul 2025939 AMAQI
19th Jul 20258910 AMAQI
19th Jul 20257811 AMAQI
19th Jul 20257712 PMAQI
19th Jul 2025751 PMAQI
19th Jul 2025772 PMAQI
19th Jul 2025723 PMAQI
19th Jul 2025724 PMAQI
19th Jul 2025735 PMAQI
19th Jul 2025786 PMAQI
19th Jul 2025677 PMAQI
19th Jul 2025678 PMAQI
19th Jul 2025689 PMAQI
19th Jul 20256610 PMAQI
19th Jul 20256711 PMAQI
20th Jul 20256612 AMAQI
20th Jul 2025671 AMAQI
20th Jul 2025662 AMAQI
20th Jul 2025673 AMAQI
20th Jul 2025684 AMAQI
20th Jul 2025685 AMAQI

21°C16/24°C

20th Jul 2025686 AMAQI
20th Jul 2025687 AMAQI
20th Jul 2025678 AMAQI
20th Jul 2025649 AMAQI
20th Jul 20256510 AMAQI
20th Jul 20256811 AMAQI
20th Jul 20256612 PMAQI
20th Jul 2025671 PMAQI
20th Jul 2025622 PMAQI
20th Jul 2025603 PMAQI
20th Jul 2025614 PMAQI
20th Jul 2025585 PMAQI
20th Jul 2025556 PMAQI
20th Jul 2025577 PMAQI
20th Jul 2025648 PMAQI
20th Jul 2025669 PMAQI
20th Jul 20256610 PMAQI
20th Jul 20256611 PMAQI
21st Jul 20256512 AMAQI
21st Jul 2025661 AMAQI
21st Jul 2025672 AMAQI
21st Jul 2025653 AMAQI
21st Jul 2025664 AMAQI
21st Jul 2025665 AMAQI

22°C19/27°C

21st Jul 2025666 AMAQI
21st Jul 2025677 AMAQI
21st Jul 2025748 AMAQI
21st Jul 2025729 AMAQI
21st Jul 20257210 AMAQI
21st Jul 20257211 AMAQI
21st Jul 20256612 PMAQI
21st Jul 2025631 PMAQI
21st Jul 2025632 PMAQI
21st Jul 2025623 PMAQI
21st Jul 2025614 PMAQI
21st Jul 2025625 PMAQI
21st Jul 2025626 PMAQI
21st Jul 2025607 PMAQI
21st Jul 2025638 PMAQI
21st Jul 2025649 PMAQI
21st Jul 20256710 PMAQI
21st Jul 20256711 PMAQI
22nd Jul 20256512 AMAQI
22nd Jul 2025651 AMAQI
22nd Jul 2025652 AMAQI
22nd Jul 2025643 AMAQI
22nd Jul 2025654 AMAQI
22nd Jul 2025655 AMAQI

23°C18/29°C

22nd Jul 2025666 AMAQI
22nd Jul 2025667 AMAQI
22nd Jul 2025598 AMAQI
22nd Jul 2025619 AMAQI
22nd Jul 20256610 AMAQI
22nd Jul 20256311 AMAQI
22nd Jul 20256512 PMAQI
22nd Jul 2025611 PMAQI
22nd Jul 2025562 PMAQI
22nd Jul 2025593 PMAQI
22nd Jul 2025624 PMAQI
22nd Jul 2025635 PMAQI
22nd Jul 2025616 PMAQI
22nd Jul 2025647 PMAQI
22nd Jul 2025648 PMAQI
22nd Jul 2025649 PMAQI
22nd Jul 20256410 PMAQI
22nd Jul 20256411 PMAQI
23rd Jul 20256212 AMAQI
23rd Jul 2025641 AMAQI
23rd Jul 2025642 AMAQI
23rd Jul 2025643 AMAQI
23rd Jul 2025634 AMAQI
23rd Jul 2025635 AMAQI

25°C18/33°C

23rd Jul 2025646 AMAQI
23rd Jul 2025647 AMAQI
23rd Jul 2025628 AMAQI
23rd Jul 2025609 AMAQI
23rd Jul 20256110 AMAQI
23rd Jul 20256011 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025641 PMAQI
23rd Jul 2025642 PMAQI
23rd Jul 2025663 PMAQI
23rd Jul 2025704 PMAQI
23rd Jul 2025675 PMAQI
23rd Jul 2025726 PMAQI
23rd Jul 2025707 PMAQI
23rd Jul 2025648 PMAQI
23rd Jul 2025649 PMAQI
23rd Jul 20256410 PMAQI
23rd Jul 20256211 PMAQI
24th Jul 20256312 AMAQI
24th Jul 2025631 AMAQI
24th Jul 2025632 AMAQI
24th Jul 2025633 AMAQI
24th Jul 2025634 AMAQI
24th Jul 2025635 AMAQI

26°C21/32°C

24th Jul 2025636 AMAQI
24th Jul 2025637 AMAQI
24th Jul 2025768 AMAQI
24th Jul 2025879 AMAQI
24th Jul 20257610 AMAQI
24th Jul 20257211 AMAQI
24th Jul 20256712 PMAQI
24th Jul 2025721 PMAQI
24th Jul 2025712 PMAQI
24th Jul 2025663 PMAQI
24th Jul 2025644 PMAQI
24th Jul 2025585 PMAQI
24th Jul 2025556 PMAQI
24th Jul 2025587 PMAQI
24th Jul 2025628 PMAQI
24th Jul 2025629 PMAQI
24th Jul 20256210 PMAQI
24th Jul 20256211 PMAQI
25th Jul 20256312 AMAQI
25th Jul 2025621 AMAQI
25th Jul 2025632 AMAQI
25th Jul 2025633 AMAQI
25th Jul 2025644 AMAQI
25th Jul 2025625 AMAQI

20°C18/21°C

25th Jul 2025636 AMAQI
25th Jul 2025637 AMAQI
25th Jul 2025648 AMAQI
25th Jul 2025749 AMAQI
25th Jul 20257410 AMAQI
25th Jul 20256611 AMAQI
25th Jul 20256812 PMAQI
25th Jul 2025641 PMAQI
25th Jul 2025622 PMAQI
25th Jul 2025583 PMAQI
25th Jul 2025594 PMAQI
25th Jul 2025605 PMAQI
25th Jul 2025606 PMAQI
25th Jul 2025647 PMAQI
25th Jul 2025618 PMAQI
25th Jul 2025639 PMAQI
25th Jul 20256310 PMAQI
25th Jul 20256311 PMAQI
26th Jul 20256312 AMAQI
26th Jul 2025631 AMAQI
26th Jul 2025632 AMAQI
26th Jul 2025623 AMAQI
26th Jul 2025624 AMAQI
26th Jul 2025635 AMAQI

21°C17/28°C

26th Jul 2025626 AMAQI
26th Jul 2025627 AMAQI
26th Jul 2025688 AMAQI
26th Jul 2025709 AMAQI
26th Jul 20256810 AMAQI
26th Jul 20257211 AMAQI
26th Jul 20256912 PMAQI
26th Jul 2025661 PMAQI
26th Jul 2025672 PMAQI
26th Jul 2025673 PMAQI
26th Jul 2025654 PMAQI
26th Jul 2025685 PMAQI
26th Jul 2025766 PMAQI
26th Jul 2025747 PMAQI
26th Jul 2025648 PMAQI
26th Jul 2025659 PMAQI
26th Jul 20256310 PMAQI
26th Jul 20256311 PMAQI
27th Jul 20256312 AMAQI
27th Jul 2025621 AMAQI
27th Jul 2025622 AMAQI
27th Jul 2025623 AMAQI
27th Jul 2025644 AMAQI
27th Jul 2025635 AMAQI

25°C18/32°C

27th Jul 2025636 AMAQI
27th Jul 2025637 AMAQI
27th Jul 2025688 AMAQI
27th Jul 2025729 AMAQI
27th Jul 20257610 AMAQI
27th Jul 20257111 AMAQI
27th Jul 20256612 PMAQI
27th Jul 2025631 PMAQI
27th Jul 2025622 PMAQI
27th Jul 2025633 PMAQI
27th Jul 2025644 PMAQI
27th Jul 2025625 PMAQI
27th Jul 2025696 PMAQI
27th Jul 2025687 PMAQI
27th Jul 2025638 PMAQI
27th Jul 2025649 PMAQI
27th Jul 20256410 PMAQI
27th Jul 20256311 PMAQI
28th Jul 20256312 AMAQI
28th Jul 2025621 AMAQI
28th Jul 2025622 AMAQI
28th Jul 2025633 AMAQI
28th Jul 2025634 AMAQI
28th Jul 2025625 AMAQI

27°C20/33°C

28th Jul 2025626 AMAQI
28th Jul 2025637 AMAQI
28th Jul 2025638 AMAQI
28th Jul 2025679 AMAQI
28th Jul 20256210 AMAQI
28th Jul 20255811 AMAQI
28th Jul 20256612 PMAQI
28th Jul 2025741 PMAQI
28th Jul 2025702 PMAQI
28th Jul 2025673 PMAQI
28th Jul 2025644 PMAQI
28th Jul 2025645 PMAQI
28th Jul 2025666 PMAQI
28th Jul 2025727 PMAQI
28th Jul 2025638 PMAQI
28th Jul 2025629 PMAQI
28th Jul 20256210 PMAQI
28th Jul 20256411 PMAQI
29th Jul 20256412 AMAQI
29th Jul 2025611 AMAQI
29th Jul 2025622 AMAQI
29th Jul 2025623 AMAQI
29th Jul 2025634 AMAQI
29th Jul 2025635 AMAQI

27°C20/34°C

29th Jul 2025626 AMAQI
29th Jul 2025627 AMAQI
29th Jul 2025788 AMAQI
29th Jul 2025829 AMAQI
29th Jul 20257810 AMAQI
29th Jul 20257411 AMAQI
29th Jul 20257512 PMAQI
29th Jul 2025781 PMAQI
29th Jul 2025752 PMAQI
29th Jul 2025703 PMAQI
29th Jul 2025664 PMAQI
29th Jul 2025615 PMAQI
29th Jul 2025656 PMAQI
29th Jul 2025707 PMAQI
29th Jul 2025648 PMAQI
29th Jul 2025659 PMAQI
29th Jul 20256410 PMAQI
29th Jul 20256311 PMAQI
30th Jul 20256212 AMAQI
30th Jul 2025621 AMAQI
30th Jul 2025622 AMAQI
30th Jul 2025623 AMAQI
30th Jul 2025634 AMAQI
30th Jul 2025635 AMAQI

26°C19/33°C

30th Jul 2025636 AMAQI
30th Jul 2025647 AMAQI
30th Jul 2025608 AMAQI
30th Jul 2025639 AMAQI
30th Jul 20257410 AMAQI
30th Jul 20257611 AMAQI
30th Jul 20256912 PMAQI
30th Jul 2025681 PMAQI
30th Jul 2025662 PMAQI
30th Jul 2025643 PMAQI
30th Jul 2025604 PMAQI
30th Jul 2025535 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025627 PMAQI
30th Jul 2025648 PMAQI
30th Jul 2025669 PMAQI
30th Jul 20256610 PMAQI
30th Jul 20256411 PMAQI
31st Jul 20256412 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025622 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
31st Jul 2025615 AMAQI

27°C20/35°C

31st Jul 2025616 AMAQI
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025619 AMAQI
31st Jul 202511610 AMAQI
31st Jul 202511111 AMAQI
31st Jul 20259412 PMAQI
31st Jul 2025811 PMAQI
31st Jul 2025822 PMAQI
31st Jul 2025773 PMAQI
31st Jul 2025804 PMAQI
31st Jul 2025825 PMAQI
31st Jul 2025816 PMAQI
31st Jul 2025727 PMAQI
31st Jul 2025648 PMAQI
31st Jul 2025619 PMAQI
31st Jul 20256410 PMAQI
31st Jul 20256411 PMAQI
1st Aug 20256012 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025572 AMAQI
1st Aug 2025603 AMAQI
1st Aug 2025594 AMAQI
1st Aug 2025605 AMAQI

23°C18/28°C

1st Aug 2025596 AMAQI
1st Aug 2025607 AMAQI
1st Aug 2025748 AMAQI
1st Aug 2025709 AMAQI
1st Aug 20257010 AMAQI
1st Aug 20257511 AMAQI
1st Aug 20256812 PMAQI
1st Aug 2025701 PMAQI
1st Aug 2025722 PMAQI
1st Aug 2025663 PMAQI
1st Aug 2025644 PMAQI
1st Aug 2025705 PMAQI
1st Aug 2025596 PMAQI
1st Aug 2025677 PMAQI
1st Aug 2025678 PMAQI
1st Aug 2025639 PMAQI
1st Aug 20256610 PMAQI
1st Aug 20256211 PMAQI
2nd Aug 20256412 AMAQI
2nd Aug 2025601 AMAQI
2nd Aug 2025602 AMAQI
2nd Aug 2025603 AMAQI
2nd Aug 2025624 AMAQI
2nd Aug 2025615 AMAQI

24°C18/31°C

2nd Aug 2025626 AMAQI
2nd Aug 2025607 AMAQI
2nd Aug 2025638 AMAQI
2nd Aug 2025689 AMAQI
2nd Aug 20256910 AMAQI
2nd Aug 20257211 AMAQI
2nd Aug 20257812 PMAQI
2nd Aug 2025711 PMAQI
2nd Aug 2025722 PMAQI
2nd Aug 2025673 PMAQI
2nd Aug 2025624 PMAQI
2nd Aug 2025665 PMAQI
2nd Aug 2025666 PMAQI
2nd Aug 2025627 PMAQI
2nd Aug 2025628 PMAQI
2nd Aug 2025649 PMAQI
2nd Aug 20256510 PMAQI
2nd Aug 20256311 PMAQI
3rd Aug 20256212 AMAQI
3rd Aug 2025591 AMAQI

--°C/°C

6 AM
1 PM
8 PM
1 AM
5 AM

--°C/°C

Heure du jour
Heure moyenne la plus haute
8 AM - 8 PM

67AQI

13 heures / Jour
390 heures / Mois
Heure moyenne la plus basse
6 AM - 7 AM

63AQI

2 heures / Jour
60 heures / Mois
Au cours des 30 derniers jours, pendant la journée, l'AQI le plus élevé était entre 8 AM à 8 PM (Moyenne 67), tandis que l'AQI le plus bas était entre 6 AM à 7 AM (Moyenne 63).
Heure de la nuit
Heure moyenne la plus haute
12 AM - 11 PM

63AQI

9 heures / Jour
270 heures / Mois
Heure moyenne la plus basse
12 AM - 11 PM

63AQI

9 heures / Jour
270 heures / Mois
Au cours des 30 derniers jours, pendant la journée, l'AQI le plus élevé était entre 12 AM à 11 PM (Moyenne 63), tandis que l'AQI le plus bas était entre 12 AM à 11 PM (Moyenne 63).

Jours de 2025 Vs Qualité de l'Air

Railway Design Institute, Lanzhou, Gansu, China

2025

54%

116

37%

79

8%

18

Nombre total de jours avec différentes catégories AQI au cours des 214 derniers jours de 2025 (151 jours restants)

Bon
0 Jours
Modéré
116 Jours
Pauvre
79 Jours
Non sain
18 Jours
Sévère
0 Jours
Dangereux
0 Jours

Sous les limites sécuritaires de l'OMS pour la qualité de l'air : 0%

Niveau de risque sanitaire:

Extrême

En 2025, 0% des 214 jours étaient dans les limites sécuritaires de l'OMS pour la qualité de l'air. Le risque de problèmes de santé est Extrême, pouvant causer des problèmes respiratoires, des maladies cardiaques, des problèmes de peau et du stress, en particulier pour les enfants, les personnes âgées et ceux ayant des conditions préexistantes.

Aperçus Annuels sur la Qualité de l'Air

Railway Design Institute, Lanzhou, Gansu, China

Niveaux AQI en 2025

AQI
PM2.5
PM10
CO
SO2
NO2
O3
Dim.Lun.Mar.Mer.Jeu.Ven.Sam.

Jan.

Fév.

Mar.

Avr.

Mai

Juin

Juil.

Août

Sep.

Oct.

Nov.

Déc.

1st Janvier 2025
144AQI
2nd Janvier 2025
147AQI
3rd Janvier 2025
152AQI
4th Janvier 2025
152AQI
5th Janvier 2025
167AQI
6th Janvier 2025
166AQI
7th Janvier 2025
135AQI
8th Janvier 2025
144AQI
9th Janvier 2025
136AQI
10th Janvier 2025
117AQI
11th Janvier 2025
133AQI
12th Janvier 2025
144AQI
13th Janvier 2025
150AQI
14th Janvier 2025
116AQI
15th Janvier 2025
141AQI
16th Janvier 2025
136AQI
17th Janvier 2025
148AQI
18th Janvier 2025
135AQI
19th Janvier 2025
157AQI
20th Janvier 2025
153AQI
21st Janvier 2025
155AQI
22nd Janvier 2025
157AQI
23rd Janvier 2025
166AQI
24th Janvier 2025
150AQI
25th Janvier 2025
119AQI
26th Janvier 2025
125AQI
27th Janvier 2025
137AQI
28th Janvier 2025
168AQI
29th Janvier 2025
181AQI
30th Janvier 2025
168AQI
31st Janvier 2025
154AQI
1st Février 2025
142AQI
2nd Février 2025
115AQI
3rd Février 2025
117AQI
4th Février 2025
107AQI
5th Février 2025
91AQI
6th Février 2025
94AQI
7th Février 2025
91AQI
8th Février 2025
104AQI
9th Février 2025
119AQI
10th Février 2025
118AQI
11th Février 2025
116AQI
12th Février 2025
126AQI
13th Février 2025
140AQI
14th Février 2025
99AQI
15th Février 2025
105AQI
16th Février 2025
97AQI
17th Février 2025
100AQI
18th Février 2025
88AQI
19th Février 2025
92AQI
20th Février 2025
95AQI
21st Février 2025
95AQI
22nd Février 2025
90AQI
23rd Février 2025
84AQI
24th Février 2025
91AQI
25th Février 2025
92AQI
26th Février 2025
90AQI
27th Février 2025
96AQI
28th Février 2025
98AQI
1st Mars 2025
100AQI
2nd Mars 2025
80AQI
3rd Mars 2025
91AQI
4th Mars 2025
97AQI
5th Mars 2025
84AQI
6th Mars 2025
89AQI
7th Mars 2025
92AQI
8th Mars 2025
97AQI
9th Mars 2025
91AQI
10th Mars 2025
90AQI
11th Mars 2025
148AQI
12th Mars 2025
98AQI
13th Mars 2025
108AQI
14th Mars 2025
101AQI
15th Mars 2025
86AQI
16th Mars 2025
84AQI
17th Mars 2025
77AQI
18th Mars 2025
76AQI
19th Mars 2025
83AQI
20th Mars 2025
89AQI
21st Mars 2025
95AQI
22nd Mars 2025
97AQI
23rd Mars 2025
78AQI
24th Mars 2025
99AQI
25th Mars 2025
127AQI
26th Mars 2025
183AQI
27th Mars 2025
99AQI
28th Mars 2025
121AQI
29th Mars 2025
97AQI
30th Mars 2025
115AQI
31st Mars 2025
102AQI
1st Avril 2025
135AQI
2nd Avril 2025
134AQI
3rd Avril 2025
138AQI
4th Avril 2025
146AQI
5th Avril 2025
118AQI
6th Avril 2025
118AQI
7th Avril 2025
109AQI
8th Avril 2025
109AQI
9th Avril 2025
116AQI
10th Avril 2025
99AQI
11th Avril 2025
130AQI
12th Avril 2025
174AQI
13th Avril 2025
112AQI
14th Avril 2025
107AQI
15th Avril 2025
96AQI
16th Avril 2025
187AQI
17th Avril 2025
111AQI
18th Avril 2025
182AQI
19th Avril 2025
145AQI
20th Avril 2025
150AQI
21st Avril 2025
143AQI
22nd Avril 2025
124AQI
23rd Avril 2025
104AQI
24th Avril 2025
94AQI
25th Avril 2025
90AQI
26th Avril 2025
87AQI
27th Avril 2025
93AQI
28th Avril 2025
84AQI
29th Avril 2025
85AQI
30th Avril 2025
103AQI
1st Mai 2025
84AQI
2nd Mai 2025
117AQI
3rd Mai 2025
122AQI
4th Mai 2025
125AQI
5th Mai 2025
154AQI
6th Mai 2025
137AQI
7th Mai 2025
130AQI
8th Mai 2025
104AQI
9th Mai 2025
108AQI
10th Mai 2025
89AQI
11th Mai 2025
93AQI
12th Mai 2025
93AQI
13th Mai 2025
110AQI
14th Mai 2025
88AQI
15th Mai 2025
96AQI
16th Mai 2025
96AQI
17th Mai 2025
144AQI
18th Mai 2025
106AQI
19th Mai 2025
112AQI
20th Mai 2025
101AQI
21st Mai 2025
116AQI
22nd Mai 2025
105AQI
23rd Mai 2025
100AQI
24th Mai 2025
92AQI
25th Mai 2025
85AQI
26th Mai 2025
87AQI
27th Mai 2025
83AQI
28th Mai 2025
82AQI
29th Mai 2025
82AQI
30th Mai 2025
119AQI
31st Mai 2025
108AQI
1st Juin 2025
99AQI
2nd Juin 2025
91AQI
3rd Juin 2025
81AQI
4th Juin 2025
87AQI
5th Juin 2025
80AQI
6th Juin 2025
83AQI
7th Juin 2025
81AQI
8th Juin 2025
90AQI
9th Juin 2025
84AQI
10th Juin 2025
86AQI
11th Juin 2025
93AQI
12th Juin 2025
91AQI
13th Juin 2025
105AQI
14th Juin 2025
93AQI
15th Juin 2025
107AQI
16th Juin 2025
99AQI
17th Juin 2025
106AQI
18th Juin 2025
115AQI
19th Juin 2025
110AQI
20th Juin 2025
112AQI
21st Juin 2025
106AQI
22nd Juin 2025
117AQI
23rd Juin 2025
98AQI
24th Juin 2025
92AQI
25th Juin 2025
84AQI
26th Juin 2025
83AQI
27th Juin 2025
75AQI
28th Juin 2025
70AQI
29th Juin 2025
73AQI
30th Juin 2025
69AQI
1st Juillet 2025
69AQI
2nd Juillet 2025
70AQI
3rd Juillet 2025
68AQI
4th Juillet 2025
63AQI
5th Juillet 2025
62AQI
6th Juillet 2025
59AQI
7th Juillet 2025
61AQI
8th Juillet 2025
60AQI
9th Juillet 2025
64AQI
10th Juillet 2025
62AQI
11th Juillet 2025
62AQI
12th Juillet 2025
63AQI
13th Juillet 2025
66AQI
14th Juillet 2025
67AQI
15th Juillet 2025
69AQI
16th Juillet 2025
69AQI
17th Juillet 2025
66AQI
18th Juillet 2025
68AQI
19th Juillet 2025
71AQI
20th Juillet 2025
65AQI
21st Juillet 2025
65AQI
22nd Juillet 2025
64AQI
23rd Juillet 2025
64AQI
24th Juillet 2025
64AQI
25th Juillet 2025
63AQI
26th Juillet 2025
66AQI
27th Juillet 2025
64AQI
28th Juillet 2025
64AQI
29th Juillet 2025
66AQI
30th Juillet 2025
63AQI
31st Juillet 2025
72AQI
1st Août 2025
64AQI

147AQI

103AQI

99AQI

121AQI

105AQI

92AQI

65AQI

64AQI

Nombre de jours

Jan.Fév.Mar.Avr.MaiJuinJuil.AoûtSep.Oct.Nov.Déc.Jours totaux

2025104AQI

18
13
17
11
23
7
1
8
19
3
14
16
1
22
8
31
1
116
79
18

Le plus élevé AQI enregistré en

Janvier

147AQI

Le plus bas AQI enregistré en

Août

64AQI

2024108AQI

1
10
20
1
10
15
3
3
21
5
2
17
11
2
25
5
1
30
1
23
5
1
1
29
2
26
4
23
8
16
12
2
1
15
15
1
195
103
59
8

Le plus élevé AQI enregistré en

Février

157AQI

Le plus bas AQI enregistré en

Juin

72AQI

2023115AQI

9
22
17
11
1
27
1
1
1
6
14
8
1
1
21
9
1
27
3
30
1
1
28
1
1
25
5
14
17
6
14
6
1
16
13
1
1
159
133
62
3
3

Le plus élevé AQI enregistré en

Janvier

159AQI

Le plus bas AQI enregistré en

Juillet

74AQI

2022103AQI

1
20
10
8
12
1
11
16
1
3
14
11
3
2
28
2
1
30
4
18
1
1
2
25
1
23
8
9
19
2
2
10
19
6
170
100
36
6

Le plus élevé AQI enregistré en

Décembre

148AQI

Le plus bas AQI enregistré en

Juillet

67AQI

2021109AQI

6
21
4
10
18
5
16
3
1
6
25
3
2
25
5
1
29
1
31
1
20
5
25
19
12
7
18
5
5
20
6
6
207
114
19
1
8

Le plus élevé AQI enregistré en

Mars

248AQI

Le plus bas AQI enregistré en

Juillet

65AQI

202088AQI

4
8
1
13
7
1
16
2
28
2
2
29
6
25
4
26
24
7
6
20
4
5
23
3
12
176
69
9

Le plus élevé AQI enregistré en

Novembre

124AQI

Le plus bas AQI enregistré en

Août

60AQI

Années les plus & moins polluées des 6 dernières années

Année la plus polluée enregistrée
2023(Moyenne)
115AQI
Année la moins polluée enregistrée
2020(Moyenne)
88AQI

La qualité de l'air annuelle de Railway Design Institute pour l'année 2025 AQI (104) montre un changement moyen de pourcentage de 0.8% (empiré AQI) par rapport aux années précédentes : 2020 (88), 2021 (109), 2022 (103), 2023 (115), 2024 (108).