Air Quality
Excellent
No health implications.
16
PM2.5
48
PM10
37
O3
0.4
CO
3
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Aug
64
Good
Mon
18 Aug
64
Good
Tue
19 Aug
69
Good
Wed
20 Aug
65
Good
Thu
21 Aug
62
Good
Fri
22 Aug
18
Excellent
Sat
23 Aug
46
Excellent
Air quality in the last 12 months (Guyuan)
|
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
|
|
|
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
|
|
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