Air Quality
Excellent
No health implications.
18
PM2.5
48
PM10
81
O3
0.8
CO
8
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Aug
77
Good
Thu
21 Aug
74
Good
Fri
22 Aug
72
Good
Sat
23 Aug
75
Good
Sun
24 Aug
70
Good
Mon
25 Aug
76
Good
Tue
26 Aug
32
Excellent
Air quality in the last 12 months (Changzi)
|
2025/06
|
59
|
49
|
29
|
36
|
41
|
43
|
55
|
58
|
63
|
36
|
52
|
51
|
47
|
34
|
36
|
32
|
30
|
45
|
39
|
55
|
54
|
50
|
44
|
43
|
50
|
45
|
54
|
39
|
51
|
38
|
|
|
2025/05
|
52
|
72
|
52
|
50
|
154
|
85
|
98
|
88
|
57
|
46
|
46
|
48
|
57
|
52
|
50
|
52
|
88
|
62
|
60
|
60
|
70
|
68
|
64
|
38
|
46
|
50
|
57
|
54
|
58
|
55
|
48
|
|
2025/04
|
53
|
56
|
60
|
70
|
50
|
65
|
84
|
79
|
60
|
49
|
74
|
180
|
68
|
37
|
45
|
102
|
109
|
96
|
72
|
61
|
67
|
72
|
83
|
52
|
62
|
70
|
68
|
52
|
47
|
88
|
|
|
2025/03
|
115
|
73
|
42
|
61
|
77
|
91
|
84
|
76
|
75
|
89
|
76
|
106
|
101
|
82
|
60
|
34
|
35
|
39
|
44
|
40
|
45
|
58
|
95
|
201
|
152
|
117
|
113
|
123
|
38
|
43
|
51
|
|
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
|
|
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