Sichuan - China   2025-09-17   Wednesday   31.21N, 98.82E

Baiyu

Sichuan - China
2025-09-17

Air Quality

Excellent

No health implications.

3

PM2.5

9

PM10

64

O3

0.3

CO

6

SO2

4

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

17 Sep

42 Excellent

Thu

18 Sep

40 Excellent

Fri

19 Sep

39 Excellent

Sat

20 Sep

39 Excellent

Sun

21 Sep

40 Excellent

Mon

22 Sep

41 Excellent

Tue

23 Sep

26 Excellent

Baiyu Air quality rank

Monthly Average AQI (Baiyu)

2020/09 - 2025/08

Air quality in the last 12 months (Baiyu)

2025/08
14
15
15
14
17
20
15
14
12
11
19
22
22
18
15
15
16
14
12
11
11
12
12
14
12
12
14
10
14
13
13
2025/07
19
13
14
14
11
14
13
18
19
22
23
15
15
14
14
21
20
21
13
14
13
13
13
14
17
13
16
15
17
11
13
2025/06
13
12
11
11
13
12
13
12
15
18
15
18
19
23
25
21
16
17
8
9
13
18
19
12
14
14
20
26
20
31
2025/05
20
12
10
14
16
8
13
36
36
24
23
25
17
44
8
9
8
8
12
12
15
32
25
20
21
18
10
13
14
13
9
2025/04
35
28
20
20
19
21
25
29
20
22
13
17
13
10
11
13
13
23
27
15
17
12
11
10
12
14
23
17
17
24
2025/03
16
21
21
17
18
35
46
28
17
18
18
22
11
11
13
26
15
13
19
17
16
12
28
18
14
19
39
41
33
68
45
2025/02
19
23
27
30
29
28
23
27
20
19
15
16
13
17
23
18
16
13
13
18
19
17
18
16
16
15
22
48
2025/01
28
26
28
27
28
29
25
15
19
16
27
24
18
18
16
24
29
36
34
30
30
28
28
21
35
29
16
18
32
20
13
2024/12
31
30
29
29
29
29
28
32
26
24
33
35
29
27
28
27
37
33
34
31
25
22
29
27
29
30
28
31
31
19
17
2024/11
15
21
20
15
16
15
23
21
21
23
22
21
27
24
28
30
24
23
22
17
18
18
19
21
49
23
19
15
23
28
2024/10
13
15
11
10
11
10
9
12
14
11
8
10
12
15
14
10
15
13
10
28
29
24
24
19
13
14
18
19
18
16
17
2024/09
12
10
9
10
12
12
11
11
11
11
11
11
10
9
10
11
10
12
13
9
9
10
12
11
12
13
16
11
11
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
  • Excellent
  • Good
  • Lightly
  • Moderately
  • Heavily
  • Severely
Air quality source: CNEMC

*: primary pollution