Air Quality
Excellent
No health implications.
5
PM2.5
44
PM10
141
O3
0.2
CO
2
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 May
122
Light
Fri
2 May
128
Light
Sat
3 May
115
Light
Sun
4 May
92
Good
Mon
5 May
69
Good
Tue
6 May
110
Light
Wed
7 May
30
Excellent
Air quality in the last 12 months (Ziyang)
|
2025/02
|
77
|
71
|
91
|
75
|
60
|
58
|
65
|
40
|
44
|
63
|
78
|
82
|
100
|
83
|
56
|
70
|
53
|
45
|
65
|
106
|
122
|
65
|
99
|
109
|
78
|
104
|
59
|
71
|
|||
|
2025/01
|
133
|
181
|
200
|
230
|
91
|
92
|
100
|
82
|
73
|
72
|
67
|
83
|
95
|
140
|
66
|
71
|
87
|
102
|
115
|
116
|
116
|
156
|
288
|
171
|
28
|
41
|
53
|
106
|
241
|
124
|
106
|
|
2024/12
|
65
|
89
|
163
|
132
|
59
|
61
|
70
|
103
|
79
|
91
|
73
|
124
|
131
|
51
|
57
|
70
|
90
|
112
|
90
|
120
|
128
|
85
|
77
|
99
|
138
|
174
|
194
|
127
|
88
|
151
|
141
|
|
2024/11
|
104
|
135
|
108
|
106
|
102
|
100
|
78
|
92
|
128
|
83
|
83
|
114
|
117
|
134
|
157
|
151
|
23
|
15
|
37
|
43
|
46
|
72
|
111
|
134
|
44
|
34
|
36
|
36
|
48
|
51
|
|
|
2024/10
|
31
|
51
|
68
|
81
|
79
|
90
|
63
|
51
|
50
|
71
|
102
|
192
|
103
|
58
|
57
|
126
|
106
|
36
|
31
|
48
|
24
|
31
|
30
|
41
|
68
|
63
|
76
|
110
|
118
|
99
|
75
|
|
2024/09
|
45
|
39
|
72
|
77
|
62
|
60
|
64
|
54
|
42
|
53
|
49
|
50
|
57
|
59
|
86
|
63
|
60
|
48
|
46
|
79
|
50
|
25
|
34
|
57
|
63
|
92
|
106
|
76
|
56
|
50
|
|
|
2024/08
|
23
|
24
|
20
|
23
|
29
|
27
|
34
|
26
|
26
|
38
|
46
|
52
|
34
|
46
|
45
|
34
|
45
|
39
|
35
|
41
|
40
|
34
|
26
|
27
|
27
|
40
|
38
|
31
|
44
|
49
|
48
|
|
2024/07
|
25
|
30
|
23
|
19
|
18
|
17
|
18
|
19
|
21
|
44
|
56
|
36
|
31
|
30
|
22
|
21
|
18
|
17
|
16
|
24
|
21
|
19
|
17
|
24
|
39
|
43
|
37
|
34
|
21
|
19
|
21
|
|
2024/06
|
41
|
34
|
61
|
24
|
26
|
35
|
42
|
53
|
28
|
27
|
26
|
35
|
35
|
35
|
39
|
28
|
39
|
44
|
29
|
39
|
34
|
28
|
33
|
29
|
26
|
22
|
19
|
31
|
24
|
18
|
|
|
2024/05
|
39
|
60
|
35
|
27
|
34
|
37
|
64
|
69
|
56
|
51
|
68
|
83
|
76
|
58
|
57
|
63
|
54
|
49
|
45
|
35
|
55
|
64
|
58
|
46
|
41
|
37
|
41
|
24
|
33
|
28
|
42
|
|
2024/04
|
40
|
29
|
71
|
80
|
79
|
68
|
72
|
60
|
59
|
61
|
74
|
44
|
43
|
42
|
63
|
44
|
53
|
58
|
43
|
37
|
58
|
66
|
43
|
59
|
74
|
50
|
51
|
49
|
54
|
32
|
|
|
2024/03
|
109
|
83
|
54
|
68
|
114
|
124
|
93
|
96
|
71
|
101
|
73
|
64
|
108
|
116
|
87
|
87
|
85
|
46
|
51
|
66
|
65
|
49
|
32
|
64
|
35
|
41
|
55
|
43
|
25
|
39
|
40
|
|
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