Air Quality
Excellent
No health implications.
10
PM2.5
19
PM10
26
O3
0.3
CO
6
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Sep
69
Good
Wed
10 Sep
65
Good
Thu
11 Sep
68
Good
Fri
12 Sep
71
Good
Sat
13 Sep
72
Good
Sun
14 Sep
35
Excellent
Mon
15 Sep
37
Excellent
Air quality in the last 12 months (Guyuan)
|
2025/08
|
35
|
37
|
24
|
33
|
23
|
13
|
15
|
23
|
17
|
19
|
32
|
20
|
19
|
24
|
35
|
21
|
23
|
30
|
24
|
23
|
24
|
22
|
21
|
21
|
18
|
19
|
14
|
20
|
26
|
27
|
23
|
|
2025/07
|
24
|
26
|
25
|
31
|
24
|
19
|
28
|
28
|
32
|
37
|
38
|
34
|
20
|
21
|
29
|
14
|
16
|
20
|
34
|
17
|
15
|
22
|
31
|
20
|
20
|
25
|
19
|
19
|
17
|
15
|
22
|
|
2025/06
|
30
|
12
|
14
|
15
|
22
|
17
|
14
|
18
|
22
|
21
|
34
|
55
|
33
|
27
|
11
|
20
|
23
|
34
|
21
|
16
|
17
|
31
|
31
|
39
|
45
|
46
|
48
|
33
|
32
|
28
|
|
|
2025/05
|
15
|
14
|
15
|
16
|
61
|
19
|
41
|
67
|
23
|
37
|
20
|
32
|
36
|
21
|
31
|
58
|
22
|
14
|
13
|
43
|
41
|
48
|
35
|
30
|
41
|
27
|
14
|
24
|
44
|
56
|
29
|
|
2025/04
|
16
|
14
|
40
|
48
|
18
|
29
|
36
|
26
|
23
|
28
|
82
|
53
|
52
|
38
|
33
|
63
|
45
|
12
|
15
|
39
|
54
|
35
|
46
|
16
|
20
|
36
|
15
|
19
|
38
|
19
|
|
|
2025/03
|
59
|
30
|
21
|
32
|
30
|
14
|
28
|
52
|
65
|
79
|
139
|
32
|
38
|
51
|
31
|
16
|
21
|
13
|
12
|
15
|
22
|
35
|
147
|
55
|
35
|
113
|
24
|
19
|
20
|
17
|
14
|
|
2025/02
|
49
|
27
|
11
|
15
|
26
|
33
|
13
|
12
|
15
|
34
|
53
|
30
|
42
|
35
|
74
|
16
|
13
|
11
|
11
|
11
|
11
|
14
|
13
|
24
|
25
|
25
|
51
|
43
|
|||
|
2025/01
|
34
|
13
|
18
|
23
|
32
|
11
|
11
|
11
|
12
|
17
|
26
|
16
|
16
|
12
|
23
|
37
|
31
|
34
|
24
|
33
|
21
|
25
|
41
|
44
|
62
|
91
|
11
|
19
|
85
|
35
|
53
|
|
2024/12
|
25
|
12
|
12
|
9
|
13
|
15
|
11
|
15
|
16
|
22
|
21
|
24
|
19
|
17
|
21
|
18
|
13
|
13
|
17
|
26
|
13
|
14
|
18
|
35
|
45
|
15
|
14
|
31
|
64
|
50
|
34
|
|
2024/11
|
45
|
45
|
32
|
12
|
16
|
18
|
42
|
66
|
83
|
48
|
35
|
32
|
52
|
44
|
35
|
43
|
24
|
24
|
47
|
41
|
17
|
15
|
40
|
64
|
29
|
21
|
16
|
10
|
12
|
23
|
|
|
2024/10
|
10
|
10
|
16
|
33
|
45
|
20
|
9
|
14
|
30
|
20
|
29
|
41
|
58
|
41
|
23
|
42
|
52
|
17
|
14
|
16
|
30
|
12
|
26
|
30
|
48
|
57
|
13
|
16
|
20
|
26
|
52
|
|
2024/09
|
15
|
13
|
17
|
21
|
13
|
13
|
13
|
16
|
22
|
13
|
15
|
14
|
14
|
11
|
13
|
13
|
11
|
17
|
31
|
12
|
11
|
11
|
18
|
28
|
13
|
21
|
40
|
37
|
28
|
10
|
|
|
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