Air Quality
Excellent
No health implications.
18
PM2.5
45
PM10
56
O3
0.5
CO
7
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 May
82
Good
Sun
25 May
79
Good
Mon
26 May
80
Good
Tue
27 May
66
Good
Wed
28 May
72
Good
Thu
29 May
34
Excellent
Fri
30 May
50
Excellent
Air quality in the last 12 months (Ziyang)
|
2025/04
|
52
|
68
|
68
|
59
|
69
|
67
|
58
|
54
|
59
|
55
|
54
|
399
|
204
|
97
|
61
|
61
|
68
|
72
|
78
|
52
|
51
|
84
|
78
|
58
|
60
|
53
|
44
|
42
|
47
|
47
|
|
|
2025/03
|
76
|
60
|
15
|
13
|
22
|
36
|
48
|
54
|
59
|
48
|
53
|
62
|
47
|
35
|
24
|
37
|
44
|
43
|
42
|
44
|
51
|
54
|
56
|
55
|
47
|
57
|
154
|
58
|
51
|
58
|
50
|
|
2025/02
|
67
|
43
|
36
|
44
|
51
|
33
|
50
|
57
|
58
|
57
|
66
|
61
|
61
|
56
|
47
|
47
|
55
|
51
|
72
|
99
|
100
|
68
|
47
|
76
|
77
|
52
|
52
|
61
|
|||
|
2025/01
|
98
|
98
|
111
|
151
|
116
|
104
|
103
|
68
|
63
|
67
|
70
|
63
|
72
|
78
|
59
|
63
|
86
|
82
|
85
|
87
|
107
|
154
|
209
|
94
|
19
|
48
|
64
|
74
|
179
|
130
|
106
|
|
2024/12
|
65
|
76
|
80
|
64
|
60
|
51
|
55
|
61
|
69
|
67
|
58
|
68
|
45
|
45
|
63
|
77
|
85
|
82
|
77
|
107
|
110
|
81
|
67
|
91
|
105
|
126
|
103
|
63
|
84
|
100
|
95
|
|
2024/11
|
50
|
34
|
38
|
44
|
38
|
47
|
59
|
72
|
61
|
48
|
56
|
59
|
49
|
28
|
35
|
23
|
8
|
9
|
18
|
22
|
29
|
43
|
55
|
55
|
19
|
41
|
49
|
48
|
51
|
56
|
|
|
2024/10
|
28
|
32
|
38
|
43
|
51
|
47
|
41
|
46
|
40
|
36
|
44
|
39
|
43
|
40
|
35
|
43
|
50
|
29
|
25
|
15
|
13
|
26
|
32
|
49
|
49
|
44
|
36
|
34
|
48
|
59
|
51
|
|
2024/09
|
36
|
42
|
29
|
29
|
34
|
39
|
39
|
44
|
43
|
24
|
46
|
34
|
31
|
28
|
31
|
21
|
23
|
28
|
36
|
29
|
15
|
24
|
35
|
43
|
47
|
63
|
60
|
80
|
55
|
12
|
|
|
2024/08
|
30
|
30
|
22
|
12
|
20
|
22
|
21
|
26
|
22
|
33
|
59
|
47
|
32
|
28
|
28
|
40
|
34
|
22
|
29
|
27
|
28
|
36
|
40
|
43
|
27
|
29
|
25
|
24
|
27
|
34
|
36
|
|
2024/07
|
19
|
21
|
27
|
25
|
16
|
16
|
26
|
17
|
10
|
29
|
18
|
18
|
27
|
16
|
18
|
28
|
24
|
23
|
21
|
21
|
25
|
25
|
31
|
38
|
55
|
45
|
36
|
33
|
21
|
13
|
18
|
|
2024/06
|
52
|
52
|
40
|
25
|
20
|
27
|
30
|
25
|
28
|
32
|
28
|
30
|
32
|
30
|
31
|
22
|
19
|
22
|
23
|
20
|
12
|
21
|
28
|
32
|
25
|
36
|
32
|
40
|
34
|
36
|
|
|
2024/05
|
20
|
27
|
23
|
13
|
28
|
44
|
47
|
42
|
29
|
30
|
44
|
55
|
57
|
55
|
54
|
48
|
54
|
66
|
27
|
23
|
37
|
41
|
39
|
40
|
44
|
25
|
30
|
43
|
30
|
28
|
44
|
|
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