Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
41
*
PM2.5
48
PM10
53
O3
1.3
CO
6
SO2
16
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
14 May
84
Good
Thu
15 May
91
Good
Fri
16 May
98
Good
Sat
17 May
62
Good
Sun
18 May
55
Good
Mon
19 May
54
Good
Tue
20 May
47
Excellent
Air quality in the last 12 months (Changtu)
|
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
|
|
|
2024/10
|
20
|
24
|
29
|
41
|
49
|
51
|
33
|
44
|
43
|
23
|
41
|
41
|
69
|
49
|
18
|
34
|
63
|
49
|
28
|
42
|
30
|
30
|
39
|
60
|
92
|
76
|
33
|
50
|
74
|
90
|
93
|
|
2024/09
|
20
|
20
|
22
|
32
|
21
|
25
|
24
|
31
|
34
|
18
|
27
|
24
|
32
|
18
|
23
|
27
|
41
|
32
|
28
|
11
|
18
|
30
|
28
|
37
|
25
|
23
|
34
|
40
|
43
|
18
|
|
|
2024/08
|
17
|
17
|
24
|
29
|
18
|
26
|
37
|
36
|
30
|
24
|
22
|
19
|
18
|
27
|
28
|
27
|
31
|
34
|
27
|
24
|
12
|
13
|
22
|
29
|
21
|
24
|
19
|
23
|
26
|
37
|
26
|
|
2024/07
|
68
|
48
|
14
|
42
|
50
|
43
|
31
|
58
|
48
|
53
|
61
|
64
|
66
|
57
|
61
|
36
|
15
|
39
|
43
|
17
|
32
|
23
|
31
|
20
|
21
|
9
|
14
|
11
|
21
|
35
|
21
|
|
2024/06
|
22
|
18
|
28
|
40
|
47
|
41
|
36
|
32
|
31
|
34
|
45
|
40
|
38
|
28
|
17
|
27
|
39
|
39
|
46
|
38
|
40
|
54
|
33
|
11
|
24
|
31
|
47
|
38
|
31
|
28
|
|
|
2024/05
|
40
|
59
|
61
|
60
|
36
|
53
|
45
|
44
|
70
|
69
|
82
|
32
|
45
|
60
|
28
|
21
|
43
|
53
|
28
|
18
|
37
|
49
|
28
|
25
|
22
|
16
|
15
|
25
|
42
|
39
|
15
|
|
2024/04
|
63
|
67
|
54
|
83
|
108
|
81
|
111
|
136
|
135
|
142
|
71
|
89
|
59
|
69
|
184
|
164
|
73
|
53
|
60
|
186
|
121
|
67
|
60
|
53
|
58
|
61
|
61
|
23
|
38
|
51
|
|
|
2024/03
|
37
|
44
|
38
|
51
|
36
|
38
|
44
|
40
|
45
|
90
|
87
|
49
|
62
|
91
|
86
|
123
|
56
|
87
|
70
|
56
|
84
|
41
|
76
|
36
|
63
|
70
|
83
|
179
|
91
|
70
|
62
|
|
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