Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
*
PM2.5
55
PM10
42
O3
1.0
CO
17
SO2
30
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
22 Nov
84
Good
Sun
23 Nov
95
Good
Mon
24 Nov
77
Good
Tue
25 Nov
75
Good
Wed
26 Nov
73
Good
Thu
27 Nov
57
Good
Fri
28 Nov
41
Excellent
Air quality in the last 12 months (Changtu)
|
2025/10
|
51
|
58
|
51
|
44
|
28
|
32
|
43
|
32
|
39
|
52
|
73
|
49
|
56
|
108
|
61
|
57
|
77
|
33
|
39
|
42
|
53
|
51
|
54
|
64
|
93
|
43
|
46
|
89
|
102
|
39
|
35
|
|
2025/09
|
34
|
40
|
38
|
34
|
34
|
25
|
29
|
25
|
28
|
26
|
37
|
43
|
38
|
38
|
21
|
26
|
22
|
24
|
25
|
33
|
33
|
24
|
33
|
22
|
42
|
33
|
34
|
33
|
48
|
46
|
|
|
2025/08
|
32
|
34
|
19
|
17
|
21
|
18
|
20
|
22
|
20
|
27
|
20
|
32
|
26
|
34
|
36
|
25
|
16
|
28
|
42
|
26
|
20
|
16
|
43
|
14
|
12
|
22
|
21
|
12
|
20
|
46
|
28
|
|
2025/07
|
23
|
26
|
17
|
17
|
23
|
18
|
21
|
32
|
44
|
43
|
42
|
42
|
20
|
20
|
18
|
22
|
20
|
25
|
29
|
19
|
24
|
32
|
19
|
22
|
28
|
35
|
31
|
19
|
24
|
16
|
19
|
|
2025/06
|
28
|
44
|
24
|
16
|
33
|
29
|
19
|
36
|
32
|
17
|
23
|
28
|
30
|
34
|
36
|
21
|
34
|
36
|
33
|
20
|
19
|
26
|
34
|
44
|
43
|
49
|
45
|
25
|
39
|
17
|
|
|
2025/05
|
21
|
31
|
29
|
28
|
35
|
26
|
50
|
47
|
41
|
35
|
42
|
59
|
54
|
52
|
50
|
34
|
27
|
32
|
36
|
39
|
43
|
49
|
33
|
39
|
28
|
42
|
48
|
52
|
50
|
58
|
57
|
|
2025/04
|
93
|
83
|
80
|
68
|
39
|
45
|
60
|
63
|
86
|
83
|
63
|
33
|
12
|
24
|
47
|
48
|
54
|
35
|
39
|
57
|
70
|
20
|
44
|
77
|
70
|
90
|
47
|
52
|
70
|
54
|
|
|
2025/03
|
91
|
32
|
41
|
55
|
79
|
71
|
58
|
86
|
106
|
97
|
71
|
127
|
36
|
45
|
55
|
60
|
79
|
71
|
79
|
94
|
91
|
201
|
168
|
95
|
131
|
154
|
56
|
29
|
33
|
42
|
69
|
|
2025/02
|
124
|
175
|
76
|
73
|
61
|
65
|
57
|
51
|
71
|
65
|
70
|
49
|
67
|
84
|
94
|
53
|
35
|
35
|
45
|
57
|
56
|
56
|
59
|
60
|
105
|
62
|
85
|
120
|
|||
|
2025/01
|
46
|
38
|
52
|
70
|
92
|
111
|
54
|
39
|
65
|
69
|
76
|
91
|
93
|
72
|
42
|
53
|
65
|
73
|
76
|
60
|
71
|
87
|
94
|
78
|
77
|
95
|
127
|
62
|
90
|
78
|
99
|
|
2024/12
|
32
|
22
|
39
|
31
|
39
|
34
|
49
|
55
|
63
|
68
|
45
|
60
|
75
|
52
|
42
|
39
|
45
|
60
|
51
|
61
|
73
|
58
|
63
|
51
|
71
|
41
|
45
|
50
|
56
|
67
|
45
|
|
2024/11
|
66
|
89
|
110
|
33
|
34
|
33
|
46
|
67
|
60
|
47
|
42
|
46
|
47
|
37
|
34
|
36
|
28
|
28
|
38
|
71
|
74
|
71
|
110
|
65
|
52
|
27
|
38
|
42
|
46
|
50
|
|
|
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