Air Quality
Excellent
No health implications.
28
PM2.5
33
PM10
47
O3
0.3
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 May
59
Good
Mon
26 May
64
Good
Tue
27 May
69
Good
Wed
28 May
80
Good
Thu
29 May
73
Good
Fri
30 May
20
Excellent
Sat
31 May
22
Excellent
Air quality in the last 12 months (Guyuan)
|
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
|
|
|
2024/08
|
16
|
23
|
24
|
25
|
20
|
20
|
32
|
28
|
26
|
47
|
11
|
12
|
15
|
19
|
22
|
25
|
27
|
19
|
20
|
14
|
12
|
16
|
18
|
18
|
17
|
15
|
20
|
21
|
23
|
26
|
28
|
|
2024/07
|
17
|
25
|
21
|
23
|
25
|
27
|
23
|
35
|
57
|
52
|
45
|
29
|
23
|
32
|
40
|
21
|
13
|
15
|
26
|
21
|
41
|
36
|
34
|
32
|
19
|
17
|
25
|
20
|
17
|
21
|
17
|
|
2024/06
|
15
|
15
|
21
|
37
|
40
|
38
|
18
|
26
|
20
|
33
|
21
|
22
|
23
|
18
|
15
|
18
|
23
|
38
|
58
|
52
|
82
|
416
|
119
|
13
|
16
|
34
|
54
|
47
|
46
|
23
|
|
|
2024/05
|
26
|
31
|
36
|
55
|
47
|
33
|
26
|
36
|
56
|
149
|
87
|
21
|
29
|
34
|
19
|
45
|
44
|
56
|
52
|
28
|
39
|
50
|
61
|
30
|
22
|
26
|
22
|
19
|
62
|
26
|
12
|
|
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