Air Quality
Excellent
No health implications.
15
PM2.5
45
PM10
121
O3
0.3
CO
16
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
81
Good
Thu
1 May
89
Good
Fri
2 May
81
Good
Sat
3 May
84
Good
Sun
4 May
79
Good
Mon
5 May
39
Excellent
Tue
6 May
47
Excellent
Air quality in the last 12 months (Changzi)
|
2025/02
|
180
|
124
|
33
|
30
|
26
|
60
|
47
|
31
|
44
|
64
|
82
|
69
|
51
|
52
|
59
|
58
|
63
|
72
|
61
|
97
|
127
|
147
|
59
|
53
|
60
|
56
|
76
|
71
|
|||
|
2025/01
|
64
|
92
|
97
|
85
|
64
|
44
|
36
|
33
|
46
|
56
|
52
|
46
|
75
|
69
|
40
|
40
|
54
|
62
|
61
|
65
|
80
|
127
|
136
|
115
|
92
|
53
|
30
|
41
|
112
|
111
|
201
|
|
2024/12
|
50
|
60
|
60
|
57
|
34
|
36
|
39
|
47
|
69
|
84
|
136
|
131
|
56
|
48
|
44
|
54
|
61
|
61
|
71
|
69
|
42
|
54
|
62
|
91
|
103
|
73
|
53
|
33
|
50
|
66
|
60
|
|
2024/11
|
48
|
51
|
56
|
45
|
59
|
65
|
78
|
82
|
57
|
87
|
196
|
182
|
52
|
52
|
70
|
57
|
61
|
54
|
40
|
57
|
73
|
76
|
89
|
87
|
39
|
38
|
60
|
34
|
32
|
49
|
|
|
2024/10
|
52
|
45
|
47
|
54
|
63
|
68
|
89
|
101
|
97
|
49
|
66
|
78
|
101
|
100
|
112
|
120
|
70
|
27
|
34
|
32
|
45
|
36
|
44
|
54
|
76
|
66
|
53
|
103
|
84
|
74
|
63
|
|
2024/09
|
52
|
38
|
47
|
48
|
32
|
39
|
42
|
51
|
56
|
29
|
31
|
34
|
50
|
64
|
48
|
51
|
55
|
55
|
44
|
39
|
30
|
51
|
54
|
59
|
66
|
94
|
85
|
69
|
49
|
26
|
|
|
2024/08
|
47
|
50
|
40
|
37
|
43
|
44
|
42
|
39
|
39
|
61
|
32
|
33
|
45
|
47
|
46
|
52
|
45
|
44
|
57
|
40
|
40
|
46
|
50
|
52
|
51
|
35
|
28
|
35
|
40
|
51
|
47
|
|
2024/07
|
37
|
38
|
54
|
45
|
45
|
44
|
56
|
51
|
56
|
70
|
63
|
66
|
72
|
81
|
83
|
57
|
50
|
37
|
40
|
37
|
41
|
49
|
46
|
46
|
36
|
49
|
47
|
48
|
35
|
27
|
39
|
|
2024/06
|
50
|
46
|
46
|
60
|
60
|
57
|
51
|
39
|
48
|
50
|
52
|
48
|
57
|
53
|
60
|
55
|
50
|
49
|
51
|
52
|
51
|
59
|
63
|
100
|
80
|
74
|
52
|
56
|
52
|
51
|
|
|
2024/05
|
46
|
52
|
45
|
48
|
66
|
48
|
51
|
65
|
66
|
52
|
85
|
75
|
77
|
69
|
51
|
46
|
59
|
67
|
58
|
63
|
56
|
61
|
54
|
57
|
67
|
62
|
59
|
46
|
56
|
52
|
58
|
|
2024/04
|
68
|
118
|
77
|
67
|
56
|
73
|
83
|
75
|
68
|
63
|
67
|
63
|
58
|
47
|
78
|
73
|
79
|
73
|
56
|
53
|
70
|
78
|
82
|
64
|
71
|
65
|
57
|
62
|
59
|
33
|
|
|
2024/03
|
71
|
54
|
59
|
99
|
133
|
126
|
72
|
44
|
63
|
74
|
66
|
63
|
78
|
77
|
80
|
150
|
75
|
86
|
71
|
65
|
72
|
110
|
118
|
51
|
45
|
57
|
54
|
74
|
64
|
68
|
73
|
|
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